From 534e24719d41eeb088ac00a829ec599c6cd3b1ef Mon Sep 17 00:00:00 2001 From: Krzosa Karol Date: Sat, 7 Mar 2026 19:50:45 +0100 Subject: [PATCH] s8_fmtspec, remove %S for tcc bounds check, optional stbsp --- build.sh | 2 +- src/core/core_lexer.c | 8 +- src/core/core_log.c | 8 +- src/core/core_string.c | 2 - src/core/core_string.h | 8 +- src/core/core_type_info.c | 14 +- src/core/stb_sprintf.h | 3924 ++++++++++++++++++------------------ src/os/os.c | 14 +- src/testing/testing_main.c | 8 +- 9 files changed, 1996 insertions(+), 1992 deletions(-) diff --git a/build.sh b/build.sh index 54227d9..61eabd7 100755 --- a/build.sh +++ b/build.sh @@ -5,5 +5,5 @@ if [ ! -d build ]; then fi cd build # clang ../src/testing/testing_main.c -o testing_main -I../src/ -ldl -lm -lbacktrace -g -Wall -Wextra -Wno-missing-braces -Wno-missing-field-initializers -Wno-single-bit-bitfield-constant-conversion -fdiagnostics-absolute-paths -Wno-writable-strings -Wno-unsequenced -tcc $(realpath ../src/testing/testing_main.c) -o testing_main -I$(realpath ../src/) -ldl -lm -Wall -Wextra +tcc $(realpath ../src/testing/testing_main.c) -o testing_main -I$(realpath ../src/) -b -g -ldl -lm -Wall -Wextra ./testing_main \ No newline at end of file diff --git a/src/core/core_lexer.c b/src/core/core_lexer.c index a26ceb7..753aa9f 100644 --- a/src/core/core_lexer.c +++ b/src/core/core_lexer.c @@ -435,9 +435,9 @@ fn void parser_panicf(b32 print_only_file, lex_t *token, const char *str, ...) { S8_FMT(scratch.arena, str, str8); if (print_only_file) { - fatalf("%s: error: %S", token->file, str8); + fatalf("%s: error: %.*s", token->file, s8_fmtspec(str8)); } else { - fatalf("%s(%d): error: %S", token->file, token->line, str8); + fatalf("%s(%d): error: %.*s", token->file, token->line, s8_fmtspec(str8)); } @@ -447,13 +447,13 @@ fn void parser_panicf(b32 print_only_file, lex_t *token, const char *str, ...) { fn lex_t *parser_expect(parser_t *par, lex_kind_t kind) { lex_t *token = parser_match(par, kind); - if (!token) parser_panicf(par->print_only_file, par->at, "expected token kind: %S, got instead: %S", lex_kind_to_s8(kind), lex_kind_to_s8(par->at->kind)); + if (!token) parser_panicf(par->print_only_file, par->at, "expected token kind: %s, got instead: %s", lex_kind_to_s8(kind).str, lex_kind_to_s8(par->at->kind).str); return token; } fn lex_t *parser_expecti(parser_t *par, s8_t ident) { lex_t *token = parser_matchi(par, ident); - if (!token) parser_panicf(par->print_only_file, par->at, "expected identifier: '%S'", ident); + if (!token) parser_panicf(par->print_only_file, par->at, "expected identifier: '%.*s'", s8_fmtspec(ident)); return token; } diff --git a/src/core/core_log.c b/src/core/core_log.c index d496712..1637d0e 100644 --- a/src/core/core_log.c +++ b/src/core/core_log.c @@ -21,18 +21,18 @@ fn void default_log_proc(log_level_t level, s8_t file_and_line, s8_t string) { switch(level) { case log_level_debug: case log_level_info: { - os_console_log(s8_printf(scratch.arena, "%S\n", string).str); + os_console_log(s8_printf(scratch.arena, "%.*s\n", s8_fmtspec(string)).str); } break; case log_level_warning: { - os_console_log(s8_printf(scratch.arena, "%S%s%S\n", file_and_line, colon, string).str); + os_console_log(s8_printf(scratch.arena, "%.*s%s%.*s\n", s8_fmtspec(file_and_line), colon, s8_fmtspec(string)).str); if (tcx->log.break_on_warning) debug_break(); } break; case log_level_error: { - os_console_log(s8_printf(scratch.arena, "%S%s%S\n", file_and_line, colon, string).str); + os_console_log(s8_printf(scratch.arena, "%.*s%s%.*s\n", s8_fmtspec(file_and_line), colon, s8_fmtspec(string)).str); if (tcx->log.break_on_error) debug_break(); } break; case log_level_fatal: { - os_error_box(s8_printf(scratch.arena, "%S%s%S\n", file_and_line, colon, string).str); + os_error_box(s8_printf(scratch.arena, "%.*s%s%.*s\n", s8_fmtspec(file_and_line), colon, s8_fmtspec(string)).str); if (tcx->log.break_on_fatal) debug_break(); } break; default_is_invalid; diff --git a/src/core/core_string.c b/src/core/core_string.c index 584796b..49bf145 100644 --- a/src/core/core_string.c +++ b/src/core/core_string.c @@ -3,8 +3,6 @@ #include "core_platform.h" #include "stb_sprintf.h" -#define s8_vsnprintf stbsp_vsnprintf - fn i32 str_len(char *str) { i32 i = 0; while (str[i]) i += 1; diff --git a/src/core/core_string.h b/src/core/core_string.h index 2ab94f7..df118ca 100644 --- a/src/core/core_string.h +++ b/src/core/core_string.h @@ -161,10 +161,16 @@ void *sbin_read_data(stream_t *stream, i64 size); s8_t result = s8_vfmt(ma, str, args1); \ va_end(args1) +#if PLATFORM_TCC +#define s8_vsnprintf vsnprintf +#else +#define s8_vsnprintf stbsp_vsnprintf +#endif + #define STR_FMT(buff, str) \ va_list args1; \ va_start(args1, str); \ - i32 len = stbsp_vsnprintf(buff, sizeof(buff), str, args1); \ + i32 len = s8_vsnprintf(buff, sizeof(buff), str, args1); \ va_end(args1) typedef struct fuzzy_pair_t fuzzy_pair_t; diff --git a/src/core/core_type_info.c b/src/core/core_type_info.c index 1938536..a60a32a 100644 --- a/src/core/core_type_info.c +++ b/src/core/core_type_info.c @@ -196,7 +196,7 @@ fn void ti__serial_data_ex(sb8_t *sb, void *p, type_t *type) { if (type == &type__s8_t) { s8_t n = *(s8_t *)p; - sb8_printf(sb, "\"%S\"", n); + sb8_printf(sb, "\"%.*s\"", s8_fmtspec(n)); return; } @@ -234,7 +234,7 @@ fn void ti__serial_data_ex(sb8_t *sb, void *p, type_t *type) { type_member_t *mem = type->members + i; void *mem_p = ti_extract_member(p, mem); sb8_indent(sb); - sb8_printf(sb, "%S: ", mem->name); + sb8_printf(sb, "%.*s: ", s8_fmtspec(mem->name)); ti__serial_data_ex(sb, mem_p, mem->type); sb8_printf(sb, ","); } @@ -377,7 +377,7 @@ fn void ti__deserial_data_ex(ma_arena_t *arena, parser_t *par, void *p, type_t * lex_t *token = parser_expect(par, lex_kind_ident); i64 value = ti_enum_name_to_value(token->string, type); if (value == -1) { - fatalf("invalid enum value: %S", token->string); + fatalf("invalid enum value: %.*s", s8_fmtspec(token->string)); } ti_enum_write_value(p, value, type); @@ -396,7 +396,7 @@ fn void ti__deserial_data_ex(ma_arena_t *arena, parser_t *par, void *p, type_t * u8 *mem_p = p8 + mem->offset; ti__deserial_data_ex(arena, par, mem_p, mem->type); } else { - debugf("deserial - skipping field: %S", ident->string); + debugf("deserial - skipping field: %.*s", s8_fmtspec(ident->string)); parser_eat_until(par, lex_kind_comma); } @@ -412,7 +412,7 @@ fn void ti__deserial_data_ex(ma_arena_t *arena, parser_t *par, void *p, type_t * lex_t *ident = parser_expect(par, lex_kind_ident); parser_expect(par, lex_kind_colon); - expect (s8_are_equal(ident->string, mem->name)) fatalf("expected identifier: %S, got instead %S", mem->name, ident->string); + expect (s8_are_equal(ident->string, mem->name)) fatalf("expected identifier: %.*s, got instead %.*s", s8_fmtspec(mem->name), s8_fmtspec(ident->string)); ti__deserial_data_ex(arena, par, memp, mem->type); parser_expect(par, lex_kind_comma); @@ -457,10 +457,10 @@ fn s8_t ti_serial_type(ma_arena_t *arena, type_t *type) { return type->name; } else if (type->kind == type_kind_pointer) { s8_t name = ti_serial_type(arena, type->base); - return s8_printf(arena, "%S*", name); + return s8_printf(arena, "%.*s*", s8_fmtspec(name)); } else if (type->kind == type_kind_array) { s8_t name = ti_serial_type(arena, type->base); - return s8_printf(arena, "%S[%d]", name, type->count); + return s8_printf(arena, "%.*s[%d]", s8_fmtspec(name), type->count); } else_is_invalid; return s8_invalid; } diff --git a/src/core/stb_sprintf.h b/src/core/stb_sprintf.h index 224ac90..a77787b 100644 --- a/src/core/stb_sprintf.h +++ b/src/core/stb_sprintf.h @@ -1,1962 +1,1962 @@ -// stb_sprintf - v1.10 - public domain snprintf() implementation -// originally by Jeff Roberts / RAD Game Tools, 2015/10/20 -// http://github.com/nothings/stb -// -// allowed types: sc uidBboXx p AaGgEef n -// lengths : hh h ll j z t I64 I32 I -// -// Contributors: -// Fabian "ryg" Giesen (reformatting) -// github:aganm (attribute format) -// -// Contributors (bugfixes): -// github:d26435 -// github:trex78 -// github:account-login -// Jari Komppa (SI suffixes) -// Rohit Nirmal -// Marcin Wojdyr -// Leonard Ritter -// Stefano Zanotti -// Adam Allison -// Arvid Gerstmann -// Markus Kolb -// -// LICENSE: -// -// See end of file for license information. - -#ifndef STB_SPRINTF_H_INCLUDE -#define STB_SPRINTF_H_INCLUDE - -/* -Single file sprintf replacement. - -Originally written by Jeff Roberts at RAD Game Tools - 2015/10/20. -Hereby placed in public domain. - -This is a full sprintf replacement that supports everything that -the C runtime sprintfs support, including float/double, 64-bit integers, -hex floats, field parameters (%*.*d stuff), length reads backs, etc. - -Why would you need this if sprintf already exists? Well, first off, -it's *much* faster (see below). It's also much smaller than the CRT -versions code-space-wise. We've also added some simple improvements -that are super handy (commas in thousands, callbacks at buffer full, -for example). Finally, the format strings for MSVC and GCC differ -for 64-bit integers (among other small things), so this lets you use -the same format strings in cross platform code. - -It uses the standard single file trick of being both the header file -and the source itself. If you just include it normally, you just get -the header file function definitions. To get the code, you include -it from a C or C++ file and define STB_SPRINTF_IMPLEMENTATION first. - -It only uses va_args macros from the C runtime to do it's work. It -does cast doubles to S64s and shifts and divides U64s, which does -drag in CRT code on most platforms. - -It compiles to roughly 8K with float support, and 4K without. -As a comparison, when using MSVC static libs, calling sprintf drags -in 16K. - -API: -==== -int stbsp_sprintf( char * buf, char const * fmt, ... ) -int stbsp_snprintf( char * buf, int count, char const * fmt, ... ) - Convert an arg list into a buffer. stbsp_snprintf always returns - a zero-terminated string (unlike regular snprintf). - -int stbsp_vsprintf( char * buf, char const * fmt, va_list va ) -int stbsp_vsnprintf( char * buf, int count, char const * fmt, va_list va ) - Convert a va_list arg list into a buffer. stbsp_vsnprintf always returns - a zero-terminated string (unlike regular snprintf). - -int stbsp_vsprintfcb( STBSP_SPRINTFCB * callback, void * user, char * buf, char -const * fmt, va_list va ) typedef char * STBSP_SPRINTFCB( char const * buf, void -* user, int len ); Convert into a buffer, calling back every STB_SPRINTF_MIN -chars. Your callback can then copy the chars out, print them or whatever. This -function is actually the workhorse for everything else. The buffer you pass in -must hold at least STB_SPRINTF_MIN characters. - // you return the next buffer to use or 0 to stop converting - -void stbsp_set_separators( char comma, char period ) - Set the comma and period characters to use. - -FLOATS/DOUBLES: -=============== -This code uses a internal float->ascii conversion method that uses -doubles with error correction (double-doubles, for ~105 bits of -precision). This conversion is round-trip perfect - that is, an atof -of the values output here will give you the bit-exact double back. - -One difference is that our insignificant digits will be different than -with MSVC or GCC (but they don't match each other either). We also -don't attempt to find the minimum length matching float (pre-MSVC15 -doesn't either). - -If you don't need float or doubles at all, define STB_SPRINTF_NOFLOAT -and you'll save 4K of code space. - -64-BIT INTS: -============ -This library also supports 64-bit integers and you can use MSVC style or -GCC style indicators (%I64d or %lld). It supports the C99 specifiers -for size_t and ptr_diff_t (%jd %zd) as well. - -EXTRAS: -======= -Like some GCCs, for integers and floats, you can use a ' (single quote) -specifier and commas will be inserted on the thousands: "%'d" on 12345 -would print 12,345. - -For integers and floats, you can use a "$" specifier and the number -will be converted to float and then divided to get kilo, mega, giga or -tera and then printed, so "%$d" 1000 is "1.0 k", "%$.2d" 2536000 is -"2.53 M", etc. For byte values, use two $:s, like "%$$d" to turn -2536000 to "2.42 Mi". If you prefer JEDEC suffixes to SI ones, use three -$:s: "%$$$d" -> "2.42 M". To remove the space between the number and the -suffix, add "_" specifier: "%_$d" -> "2.53M". - -In addition to octal and hexadecimal conversions, you can print -integers in binary: "%b" for 256 would print 100. - -PERFORMANCE vs MSVC 2008 32-/64-bit (GCC is even slower than MSVC): -=================================================================== -"%d" across all 32-bit ints (4.8x/4.0x faster than 32-/64-bit MSVC) -"%24d" across all 32-bit ints (4.5x/4.2x faster) -"%x" across all 32-bit ints (4.5x/3.8x faster) -"%08x" across all 32-bit ints (4.3x/3.8x faster) -"%f" across e-10 to e+10 floats (7.3x/6.0x faster) -"%e" across e-10 to e+10 floats (8.1x/6.0x faster) -"%g" across e-10 to e+10 floats (10.0x/7.1x faster) -"%f" for values near e-300 (7.9x/6.5x faster) -"%f" for values near e+300 (10.0x/9.1x faster) -"%e" for values near e-300 (10.1x/7.0x faster) -"%e" for values near e+300 (9.2x/6.0x faster) -"%.320f" for values near e-300 (12.6x/11.2x faster) -"%a" for random values (8.6x/4.3x faster) -"%I64d" for 64-bits with 32-bit values (4.8x/3.4x faster) -"%I64d" for 64-bits > 32-bit values (4.9x/5.5x faster) -"%s%s%s" for 64 char strings (7.1x/7.3x faster) -"...512 char string..." ( 35.0x/32.5x faster!) -*/ - -#if defined(__clang__) -#if defined(__has_feature) && defined(__has_attribute) -#if __has_feature(address_sanitizer) -#if __has_attribute(__no_sanitize__) -#define STBSP__ASAN __attribute__((__no_sanitize__("address"))) -#elif __has_attribute(__no_sanitize_address__) -#define STBSP__ASAN __attribute__((__no_sanitize_address__)) -#elif __has_attribute(__no_address_safety_analysis__) -#define STBSP__ASAN __attribute__((__no_address_safety_analysis__)) -#endif -#endif -#endif -#elif defined(__GNUC__) && \ - (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) -#if defined(__SANITIZE_ADDRESS__) && __SANITIZE_ADDRESS__ -#define STBSP__ASAN __attribute__((__no_sanitize_address__)) -#endif -#endif - -#ifndef STBSP__ASAN -#define STBSP__ASAN -#endif - -#ifdef STB_SPRINTF_STATIC -#define STBSP__PUBLICDEC static -#define STBSP__PUBLICDEF static STBSP__ASAN -#else -#ifdef __cplusplus -#define STBSP__PUBLICDEC extern "C" -#define STBSP__PUBLICDEF extern "C" STBSP__ASAN -#else -#define STBSP__PUBLICDEC extern -#define STBSP__PUBLICDEF STBSP__ASAN -#endif -#endif - -#if defined(__has_attribute) -#if __has_attribute(format) -#define STBSP__ATTRIBUTE_FORMAT(fmt, va) \ - __attribute__((format(printf, fmt, va))) -#endif -#endif - -#ifndef STBSP__ATTRIBUTE_FORMAT -#define STBSP__ATTRIBUTE_FORMAT(fmt, va) -#endif - -#ifdef _MSC_VER -#define STBSP__NOTUSED(v) (void)(v) -#else -#define STBSP__NOTUSED(v) (void)sizeof(v) -#endif - -#include // for va_arg(), va_list() -#include // size_t, ptrdiff_t -#include - -#ifndef STB_SPRINTF_MIN -#define STB_SPRINTF_MIN 512 // how many characters per callback -#endif -typedef char *STBSP_SPRINTFCB(const char *buf, void *user, int len); - -#ifndef STB_SPRINTF_DECORATE -#define STB_SPRINTF_DECORATE(name) \ - stbsp_##name // define this before including if you want to change the names -#endif - -STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsprintf)(char *buf, char const *fmt, - va_list va); -STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsnprintf)(char *buf, int count, - char const *fmt, - va_list va); -STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(sprintf)(char *buf, char const *fmt, - ...) - STBSP__ATTRIBUTE_FORMAT(2, 3); -STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(snprintf)(char *buf, int count, - char const *fmt, ...) - STBSP__ATTRIBUTE_FORMAT(3, 4); - -STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsprintfcb)(STBSP_SPRINTFCB *callback, - void *user, char *buf, - char const *fmt, - va_list va); -STBSP__PUBLICDEC void STB_SPRINTF_DECORATE(set_separators)(char comma, - char period); - -#endif // STB_SPRINTF_H_INCLUDE - -#ifdef STB_SPRINTF_IMPLEMENTATION - -#define stbsp__uint32 unsigned int -#define stbsp__int32 signed int - -#ifdef _MSC_VER -#define stbsp__uint64 unsigned __int64 -#define stbsp__int64 signed __int64 -#else -#define stbsp__uint64 unsigned long long -#define stbsp__int64 signed long long -#endif -#define stbsp__uint16 unsigned short - -#ifndef stbsp__uintptr -#if defined(__ppc64__) || defined(__powerpc64__) || defined(__aarch64__) || \ - defined(_M_X64) || defined(__x86_64__) || defined(__x86_64) || \ - defined(__s390x__) -#define stbsp__uintptr stbsp__uint64 -#else -#define stbsp__uintptr stbsp__uint32 -#endif -#endif - -#ifndef STB_SPRINTF_MSVC_MODE // used for MSVC2013 and earlier (MSVC2015 matches - // GCC) -#if defined(_MSC_VER) && (_MSC_VER < 1900) -#define STB_SPRINTF_MSVC_MODE -#endif -#endif - -#ifdef STB_SPRINTF_NOUNALIGNED // define this before inclusion to force - // stbsp_sprintf to always use aligned accesses -#define STBSP__UNALIGNED(code) -#else -#define STBSP__UNALIGNED(code) code -#endif - -#ifndef STB_SPRINTF_NOFLOAT -// internal float utility functions -static stbsp__int32 stbsp__real_to_str(char const **start, stbsp__uint32 *len, - char *out, stbsp__int32 *decimal_pos, - double value, stbsp__uint32 frac_digits); -static stbsp__int32 stbsp__real_to_parts(stbsp__int64 *bits, stbsp__int32 *expo, - double value); -#define STBSP__SPECIAL 0x7000 -#endif - -static char stbsp__period = '.'; -static char stbsp__comma = ','; -static struct { - short temp; // force next field to be 2-byte aligned - char pair[201]; -} stbsp__digitpair = {0, "00010203040506070809101112131415161718192021222324" - "25262728293031323334353637383940414243444546474849" - "50515253545556575859606162636465666768697071727374" - "75767778798081828384858687888990919293949596979899"}; - -STBSP__PUBLICDEF void STB_SPRINTF_DECORATE(set_separators)(char pcomma, - char pperiod) { - stbsp__period = pperiod; - stbsp__comma = pcomma; -} - -#define STBSP__LEFTJUST 1 -#define STBSP__LEADINGPLUS 2 -#define STBSP__LEADINGSPACE 4 -#define STBSP__LEADING_0X 8 -#define STBSP__LEADINGZERO 16 -#define STBSP__INTMAX 32 -#define STBSP__TRIPLET_COMMA 64 -#define STBSP__NEGATIVE 128 -#define STBSP__METRIC_SUFFIX 256 -#define STBSP__HALFWIDTH 512 -#define STBSP__METRIC_NOSPACE 1024 -#define STBSP__METRIC_1024 2048 -#define STBSP__METRIC_JEDEC 4096 - -static void stbsp__lead_sign(stbsp__uint32 fl, char *sign) { - sign[0] = 0; - if (fl & STBSP__NEGATIVE) { - sign[0] = 1; - sign[1] = '-'; - } else if (fl & STBSP__LEADINGSPACE) { - sign[0] = 1; - sign[1] = ' '; - } else if (fl & STBSP__LEADINGPLUS) { - sign[0] = 1; - sign[1] = '+'; - } -} - -static STBSP__ASAN stbsp__uint32 stbsp__strlen_limited(char const *s, - stbsp__uint32 limit) { - char const *sn = s; - - // get up to 4-byte alignment - for (;;) { - if (((stbsp__uintptr)sn & 3) == 0) - break; - - if (!limit || *sn == 0) - return (stbsp__uint32)(sn - s); - - ++sn; - --limit; - } - - // scan over 4 bytes at a time to find terminating 0 - // this will intentionally scan up to 3 bytes past the end of buffers, - // but becase it works 4B aligned, it will never cross page boundaries - // (hence the STBSP__ASAN markup; the over-read here is intentional - // and harmless) - while (limit >= 4) { - stbsp__uint32 v = *(stbsp__uint32 *)sn; - // bit hack to find if there's a 0 byte in there - if ((v - 0x01010101) & (~v) & 0x80808080UL) - break; - - sn += 4; - limit -= 4; - } - - // handle the last few characters to find actual size - while (limit && *sn) { - ++sn; - --limit; - } - - return (stbsp__uint32)(sn - s); -} - -STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsprintfcb)(STBSP_SPRINTFCB *callback, - void *user, char *buf, - char const *fmt, - va_list va) { - static char hex[] = "0123456789abcdefxp"; - static char hexu[] = "0123456789ABCDEFXP"; - char *bf; - char const *f; - int tlen = 0; - - bf = buf; - f = fmt; - for (;;) { - stbsp__int32 fw, pr, tz; - stbsp__uint32 fl; - - // macros for the callback buffer stuff -#define stbsp__chk_cb_bufL(bytes) \ - { \ - int len = (int)(bf - buf); \ - if ((len + (bytes)) >= STB_SPRINTF_MIN) { \ - tlen += len; \ - if (0 == (bf = buf = callback(buf, user, len))) \ - goto done; \ - } \ - } -#define stbsp__chk_cb_buf(bytes) \ - { \ - if (callback) { \ - stbsp__chk_cb_bufL(bytes); \ - } \ - } -#define stbsp__flush_cb() \ - { \ - stbsp__chk_cb_bufL(STB_SPRINTF_MIN - 1); \ - } // flush if there is even one byte in the buffer -#define stbsp__cb_buf_clamp(cl, v) \ - cl = v; \ - if (callback) { \ - int lg = STB_SPRINTF_MIN - (int)(bf - buf); \ - if (cl > lg) \ - cl = lg; \ - } - - // fast copy everything up to the next % (or end of string) - for (;;) { - while (((stbsp__uintptr)f) & 3) { - schk1: - if (f[0] == '%') - goto scandd; - schk2: - if (f[0] == 0) - goto endfmt; - stbsp__chk_cb_buf(1); - *bf++ = f[0]; - ++f; - } - for (;;) { - // Check if the next 4 bytes contain %(0x25) or end of string. - // Using the 'hasless' trick: - // https://graphics.stanford.edu/~seander/bithacks.html#HasLessInWord - stbsp__uint32 v, c; - v = *(stbsp__uint32 *)f; - c = (~v) & 0x80808080; - if (((v ^ 0x25252525) - 0x01010101) & c) - goto schk1; - if ((v - 0x01010101) & c) - goto schk2; - if (callback) - if ((STB_SPRINTF_MIN - (int)(bf - buf)) < 4) - goto schk1; -#ifdef STB_SPRINTF_NOUNALIGNED - if (((stbsp__uintptr)bf) & 3) { - bf[0] = f[0]; - bf[1] = f[1]; - bf[2] = f[2]; - bf[3] = f[3]; - } else -#endif - { - *(stbsp__uint32 *)bf = v; - } - bf += 4; - f += 4; - } - } - scandd: - - ++f; - - // ok, we have a percent, read the modifiers first - fw = 0; - pr = -1; - fl = 0; - tz = 0; - - // flags - for (;;) { - switch (f[0]) { - // if we have left justify - case '-': - fl |= STBSP__LEFTJUST; - ++f; - continue; - // if we have leading plus - case '+': - fl |= STBSP__LEADINGPLUS; - ++f; - continue; - // if we have leading space - case ' ': - fl |= STBSP__LEADINGSPACE; - ++f; - continue; - // if we have leading 0x - case '#': - fl |= STBSP__LEADING_0X; - ++f; - continue; - // if we have thousand commas - case '\'': - fl |= STBSP__TRIPLET_COMMA; - ++f; - continue; - // if we have kilo marker (none->kilo->kibi->jedec) - case '$': - if (fl & STBSP__METRIC_SUFFIX) { - if (fl & STBSP__METRIC_1024) { - fl |= STBSP__METRIC_JEDEC; - } else { - fl |= STBSP__METRIC_1024; - } - } else { - fl |= STBSP__METRIC_SUFFIX; - } - ++f; - continue; - // if we don't want space between metric suffix and number - case '_': - fl |= STBSP__METRIC_NOSPACE; - ++f; - continue; - // if we have leading zero - case '0': - fl |= STBSP__LEADINGZERO; - ++f; - goto flags_done; - default: - goto flags_done; - } - } - flags_done: - - // get the field width - if (f[0] == '*') { - fw = va_arg(va, stbsp__uint32); - ++f; - } else { - while ((f[0] >= '0') && (f[0] <= '9')) { - fw = fw * 10 + f[0] - '0'; - f++; - } - } - // get the precision - if (f[0] == '.') { - ++f; - if (f[0] == '*') { - pr = va_arg(va, stbsp__uint32); - ++f; - } else { - pr = 0; - while ((f[0] >= '0') && (f[0] <= '9')) { - pr = pr * 10 + f[0] - '0'; - f++; - } - } - } - - // handle integer size overrides - switch (f[0]) { - // are we halfwidth? - case 'h': - fl |= STBSP__HALFWIDTH; - ++f; - if (f[0] == 'h') - ++f; // QUARTERWIDTH - break; - // are we 64-bit (unix style) - case 'l': - fl |= ((sizeof(long) == 8) ? STBSP__INTMAX : 0); - ++f; - if (f[0] == 'l') { - fl |= STBSP__INTMAX; - ++f; - } - break; - // are we 64-bit on intmax? (c99) - case 'j': - fl |= (sizeof(size_t) == 8) ? STBSP__INTMAX : 0; - ++f; - break; - // are we 64-bit on size_t or ptrdiff_t? (c99) - case 'z': - fl |= (sizeof(ptrdiff_t) == 8) ? STBSP__INTMAX : 0; - ++f; - break; - case 't': - fl |= (sizeof(ptrdiff_t) == 8) ? STBSP__INTMAX : 0; - ++f; - break; - // are we 64-bit (msft style) - case 'I': - if ((f[1] == '6') && (f[2] == '4')) { - fl |= STBSP__INTMAX; - f += 3; - } else if ((f[1] == '3') && (f[2] == '2')) { - f += 3; - } else { - fl |= ((sizeof(void *) == 8) ? STBSP__INTMAX : 0); - ++f; - } - break; - default: - break; - } - - // handle each replacement - switch (f[0]) { -#define STBSP__NUMSZ 512 // big enough for e308 (with commas) or e-307 - char num[STBSP__NUMSZ]; - char lead[8]; - char tail[8]; - char *s; - char const *h; - stbsp__uint32 l, n, cs; - stbsp__uint64 n64; -#ifndef STB_SPRINTF_NOFLOAT - double fv; -#endif - stbsp__int32 dp; - char const *sn; - struct STB_STRING { char *str; int64_t len; }; - struct STB_STRING str; - - case 'S': - str = va_arg(va, struct STB_STRING); - if (str.str == 0 && str.len != 0) { - str.str = (char *)"null"; - str.len = 4; - } - pr = (int)str.len; - s = (char *)str.str; - l = stbsp__strlen_limited(s, (pr >= 0) ? pr : ~0u); - lead[0] = 0; - tail[0] = 0; - pr = 0; - dp = 0; - cs = 0; - goto scopy; - - case 's': - // get the string - s = va_arg(va, char *); - if (s == 0) - s = (char *)"null"; - // get the length, limited to desired precision - // always limit to ~0u chars since our counts are 32b - l = stbsp__strlen_limited(s, (pr >= 0) ? pr : ~0u); - lead[0] = 0; - tail[0] = 0; - pr = 0; - dp = 0; - cs = 0; - // copy the string in - goto scopy; - - case 'c': // char - // get the character - s = num + STBSP__NUMSZ - 1; - *s = (char)va_arg(va, int); - l = 1; - lead[0] = 0; - tail[0] = 0; - pr = 0; - dp = 0; - cs = 0; - goto scopy; - - case 'n': // weird write-bytes specifier - { - int *d = va_arg(va, int *); - *d = tlen + (int)(bf - buf); - } break; - -#ifdef STB_SPRINTF_NOFLOAT - case 'A': // float - case 'a': // hex float - case 'G': // float - case 'g': // float - case 'E': // float - case 'e': // float - case 'f': // float - va_arg(va, double); // eat it - s = (char *)"No float"; - l = 8; - lead[0] = 0; - tail[0] = 0; - pr = 0; - cs = 0; - STBSP__NOTUSED(dp); - goto scopy; -#else - case 'A': // hex float - case 'a': // hex float - h = (f[0] == 'A') ? hexu : hex; - fv = va_arg(va, double); - if (pr == -1) - pr = 6; // default is 6 - // read the double into a string - if (stbsp__real_to_parts((stbsp__int64 *)&n64, &dp, fv)) - fl |= STBSP__NEGATIVE; - - s = num + 64; - - stbsp__lead_sign(fl, lead); - - if (dp == -1023) - dp = (n64) ? -1022 : 0; - else - n64 |= (((stbsp__uint64)1) << 52); - n64 <<= (64 - 56); - if (pr < 15) - n64 += ((((stbsp__uint64)8) << 56) >> (pr * 4)); - // add leading chars - -#ifdef STB_SPRINTF_MSVC_MODE - *s++ = '0'; - *s++ = 'x'; -#else - lead[1 + lead[0]] = '0'; - lead[2 + lead[0]] = 'x'; - lead[0] += 2; -#endif - *s++ = h[(n64 >> 60) & 15]; - n64 <<= 4; - if (pr) - *s++ = stbsp__period; - sn = s; - - // print the bits - n = pr; - if (n > 13) - n = 13; - if (pr > (stbsp__int32)n) - tz = pr - n; - pr = 0; - while (n--) { - *s++ = h[(n64 >> 60) & 15]; - n64 <<= 4; - } - - // print the expo - tail[1] = h[17]; - if (dp < 0) { - tail[2] = '-'; - dp = -dp; - } else - tail[2] = '+'; - n = (dp >= 1000) ? 6 : ((dp >= 100) ? 5 : ((dp >= 10) ? 4 : 3)); - tail[0] = (char)n; - for (;;) { - tail[n] = '0' + dp % 10; - if (n <= 3) - break; - --n; - dp /= 10; - } - - dp = (int)(s - sn); - l = (int)(s - (num + 64)); - s = num + 64; - cs = 1 + (3 << 24); - goto scopy; - - case 'G': // float - case 'g': // float - h = (f[0] == 'G') ? hexu : hex; - fv = va_arg(va, double); - if (pr == -1) - pr = 6; - else if (pr == 0) - pr = 1; // default is 6 - // read the double into a string - if (stbsp__real_to_str(&sn, &l, num, &dp, fv, (pr - 1) | 0x80000000)) - fl |= STBSP__NEGATIVE; - - // clamp the precision and delete extra zeros after clamp - n = pr; - if (l > (stbsp__uint32)pr) - l = pr; - while ((l > 1) && (pr) && (sn[l - 1] == '0')) { - --pr; - --l; - } - - // should we use %e - if ((dp <= -4) || (dp > (stbsp__int32)n)) { - if (pr > (stbsp__int32)l) - pr = l - 1; - else if (pr) - --pr; // when using %e, there is one digit before the decimal - goto doexpfromg; - } - // this is the insane action to get the pr to match %g semantics for %f - if (dp > 0) { - pr = (dp < (stbsp__int32)l) ? l - dp : 0; - } else { - pr = -dp + ((pr > (stbsp__int32)l) ? (stbsp__int32)l : pr); - } - goto dofloatfromg; - - case 'E': // float - case 'e': // float - h = (f[0] == 'E') ? hexu : hex; - fv = va_arg(va, double); - if (pr == -1) - pr = 6; // default is 6 - // read the double into a string - if (stbsp__real_to_str(&sn, &l, num, &dp, fv, pr | 0x80000000)) - fl |= STBSP__NEGATIVE; - doexpfromg: - tail[0] = 0; - stbsp__lead_sign(fl, lead); - if (dp == STBSP__SPECIAL) { - s = (char *)sn; - cs = 0; - pr = 0; - goto scopy; - } - s = num + 64; - // handle leading chars - *s++ = sn[0]; - - if (pr) - *s++ = stbsp__period; - - // handle after decimal - if ((l - 1) > (stbsp__uint32)pr) - l = pr + 1; - for (n = 1; n < l; n++) - *s++ = sn[n]; - // trailing zeros - tz = pr - (l - 1); - pr = 0; - // dump expo - tail[1] = h[0xe]; - dp -= 1; - if (dp < 0) { - tail[2] = '-'; - dp = -dp; - } else - tail[2] = '+'; -#ifdef STB_SPRINTF_MSVC_MODE - n = 5; -#else - n = (dp >= 100) ? 5 : 4; -#endif - tail[0] = (char)n; - for (;;) { - tail[n] = '0' + dp % 10; - if (n <= 3) - break; - --n; - dp /= 10; - } - cs = 1 + (3 << 24); // how many tens - goto flt_lead; - - case 'f': // float - fv = va_arg(va, double); - doafloat: - // do kilos - if (fl & STBSP__METRIC_SUFFIX) { - double divisor; - divisor = 1000.0f; - if (fl & STBSP__METRIC_1024) - divisor = 1024.0; - while (fl < 0x4000000) { - if ((fv < divisor) && (fv > -divisor)) - break; - fv /= divisor; - fl += 0x1000000; - } - } - if (pr == -1) - pr = 6; // default is 6 - // read the double into a string - if (stbsp__real_to_str(&sn, &l, num, &dp, fv, pr)) - fl |= STBSP__NEGATIVE; - dofloatfromg: - tail[0] = 0; - stbsp__lead_sign(fl, lead); - if (dp == STBSP__SPECIAL) { - s = (char *)sn; - cs = 0; - pr = 0; - goto scopy; - } - s = num + 64; - - // handle the three decimal varieties - if (dp <= 0) { - stbsp__int32 i; - // handle 0.000*000xxxx - *s++ = '0'; - if (pr) - *s++ = stbsp__period; - n = -dp; - if ((stbsp__int32)n > pr) - n = pr; - i = n; - while (i) { - if ((((stbsp__uintptr)s) & 3) == 0) - break; - *s++ = '0'; - --i; - } - while (i >= 4) { - *(stbsp__uint32 *)s = 0x30303030; - s += 4; - i -= 4; - } - while (i) { - *s++ = '0'; - --i; - } - if ((stbsp__int32)(l + n) > pr) - l = pr - n; - i = l; - while (i) { - *s++ = *sn++; - --i; - } - tz = pr - (n + l); - cs = 1 + (3 << 24); // how many tens did we write (for commas below) - } else { - cs = (fl & STBSP__TRIPLET_COMMA) ? ((600 - (stbsp__uint32)dp) % 3) : 0; - if ((stbsp__uint32)dp >= l) { - // handle xxxx000*000.0 - n = 0; - for (;;) { - if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) { - cs = 0; - *s++ = stbsp__comma; - } else { - *s++ = sn[n]; - ++n; - if (n >= l) - break; - } - } - if (n < (stbsp__uint32)dp) { - n = dp - n; - if ((fl & STBSP__TRIPLET_COMMA) == 0) { - while (n) { - if ((((stbsp__uintptr)s) & 3) == 0) - break; - *s++ = '0'; - --n; - } - while (n >= 4) { - *(stbsp__uint32 *)s = 0x30303030; - s += 4; - n -= 4; - } - } - while (n) { - if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) { - cs = 0; - *s++ = stbsp__comma; - } else { - *s++ = '0'; - --n; - } - } - } - cs = (int)(s - (num + 64)) + (3 << 24); // cs is how many tens - if (pr) { - *s++ = stbsp__period; - tz = pr; - } - } else { - // handle xxxxx.xxxx000*000 - n = 0; - for (;;) { - if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) { - cs = 0; - *s++ = stbsp__comma; - } else { - *s++ = sn[n]; - ++n; - if (n >= (stbsp__uint32)dp) - break; - } - } - cs = (int)(s - (num + 64)) + (3 << 24); // cs is how many tens - if (pr) - *s++ = stbsp__period; - if ((l - dp) > (stbsp__uint32)pr) - l = pr + dp; - while (n < l) { - *s++ = sn[n]; - ++n; - } - tz = pr - (l - dp); - } - } - pr = 0; - - // handle k,m,g,t - if (fl & STBSP__METRIC_SUFFIX) { - char idx; - idx = 1; - if (fl & STBSP__METRIC_NOSPACE) - idx = 0; - tail[0] = idx; - tail[1] = ' '; - { - if (fl >> 24) { // SI kilo is 'k', JEDEC and SI kibits are 'K'. - if (fl & STBSP__METRIC_1024) - tail[idx + 1] = "_KMGT"[fl >> 24]; - else - tail[idx + 1] = "_kMGT"[fl >> 24]; - idx++; - // If printing kibits and not in jedec, add the 'i'. - if (fl & STBSP__METRIC_1024 && !(fl & STBSP__METRIC_JEDEC)) { - tail[idx + 1] = 'i'; - idx++; - } - tail[0] = idx; - } - } - }; - - flt_lead: - // get the length that we copied - l = (stbsp__uint32)(s - (num + 64)); - s = num + 64; - goto scopy; -#endif - - case 'B': // upper binary - case 'b': // lower binary - h = (f[0] == 'B') ? hexu : hex; - lead[0] = 0; - if (fl & STBSP__LEADING_0X) { - lead[0] = 2; - lead[1] = '0'; - lead[2] = h[0xb]; - } - l = (8 << 4) | (1 << 8); - goto radixnum; - - case 'o': // octal - h = hexu; - lead[0] = 0; - if (fl & STBSP__LEADING_0X) { - lead[0] = 1; - lead[1] = '0'; - } - l = (3 << 4) | (3 << 8); - goto radixnum; - - case 'p': // pointer - fl |= (sizeof(void *) == 8) ? STBSP__INTMAX : 0; - pr = sizeof(void *) * 2; - fl &= ~STBSP__LEADINGZERO; // 'p' only prints the pointer with zeros - // fall through - to X - - case 'X': // upper hex - case 'x': // lower hex - h = (f[0] == 'X') ? hexu : hex; - l = (4 << 4) | (4 << 8); - lead[0] = 0; - if (fl & STBSP__LEADING_0X) { - lead[0] = 2; - lead[1] = '0'; - lead[2] = h[16]; - } - radixnum: - // get the number - if (fl & STBSP__INTMAX) - n64 = va_arg(va, stbsp__uint64); - else - n64 = va_arg(va, stbsp__uint32); - - s = num + STBSP__NUMSZ; - dp = 0; - // clear tail, and clear leading if value is zero - tail[0] = 0; - if (n64 == 0) { - lead[0] = 0; - if (pr == 0) { - l = 0; - cs = 0; - goto scopy; - } - } - // convert to string - for (;;) { - *--s = h[n64 & ((1 << (l >> 8)) - 1)]; - n64 >>= (l >> 8); - if (!((n64) || ((stbsp__int32)((num + STBSP__NUMSZ) - s) < pr))) - break; - if (fl & STBSP__TRIPLET_COMMA) { - ++l; - if ((l & 15) == ((l >> 4) & 15)) { - l &= ~15; - *--s = stbsp__comma; - } - } - }; - // get the tens and the comma pos - cs = - (stbsp__uint32)((num + STBSP__NUMSZ) - s) + ((((l >> 4) & 15)) << 24); - // get the length that we copied - l = (stbsp__uint32)((num + STBSP__NUMSZ) - s); - // copy it - goto scopy; - - case 'u': // unsigned - case 'i': - case 'd': // integer - // get the integer and abs it - if (fl & STBSP__INTMAX) { - stbsp__int64 i64 = va_arg(va, stbsp__int64); - n64 = (stbsp__uint64)i64; - if ((f[0] != 'u') && (i64 < 0)) { - n64 = (stbsp__uint64)-i64; - fl |= STBSP__NEGATIVE; - } - } else { - stbsp__int32 i = va_arg(va, stbsp__int32); - n64 = (stbsp__uint32)i; - if ((f[0] != 'u') && (i < 0)) { - n64 = (stbsp__uint32)-i; - fl |= STBSP__NEGATIVE; - } - } - -#ifndef STB_SPRINTF_NOFLOAT - if (fl & STBSP__METRIC_SUFFIX) { - if (n64 < 1024) - pr = 0; - else if (pr == -1) - pr = 1; - fv = (double)(stbsp__int64)n64; - goto doafloat; - } -#endif - - // convert to string - s = num + STBSP__NUMSZ; - l = 0; - - for (;;) { - // do in 32-bit chunks (avoid lots of 64-bit divides even with constant - // denominators) - char *o = s - 8; - if (n64 >= 100000000) { - n = (stbsp__uint32)(n64 % 100000000); - n64 /= 100000000; - } else { - n = (stbsp__uint32)n64; - n64 = 0; - } - if ((fl & STBSP__TRIPLET_COMMA) == 0) { - do { - s -= 2; - *(stbsp__uint16 *)s = - *(stbsp__uint16 *)&stbsp__digitpair.pair[(n % 100) * 2]; - n /= 100; - } while (n); - } - while (n) { - if ((fl & STBSP__TRIPLET_COMMA) && (l++ == 3)) { - l = 0; - *--s = stbsp__comma; - --o; - } else { - *--s = (char)(n % 10) + '0'; - n /= 10; - } - } - if (n64 == 0) { - if ((s[0] == '0') && (s != (num + STBSP__NUMSZ))) - ++s; - break; - } - while (s != o) - if ((fl & STBSP__TRIPLET_COMMA) && (l++ == 3)) { - l = 0; - *--s = stbsp__comma; - --o; - } else { - *--s = '0'; - } - } - - tail[0] = 0; - stbsp__lead_sign(fl, lead); - - // get the length that we copied - l = (stbsp__uint32)((num + STBSP__NUMSZ) - s); - if (l == 0) { - *--s = '0'; - l = 1; - } - cs = l + (3 << 24); - if (pr < 0) - pr = 0; - - scopy: - // get fw=leading/trailing space, pr=leading zeros - if (pr < (stbsp__int32)l) - pr = l; - n = pr + lead[0] + tail[0] + tz; - if (fw < (stbsp__int32)n) - fw = n; - fw -= n; - pr -= l; - - // handle right justify and leading zeros - if ((fl & STBSP__LEFTJUST) == 0) { - if (fl & STBSP__LEADINGZERO) // if leading zeros, everything is in pr - { - pr = (fw > pr) ? fw : pr; - fw = 0; - } else { - fl &= ~STBSP__TRIPLET_COMMA; // if no leading zeros, then no commas - } - } - - // copy the spaces and/or zeros - if (fw + pr) { - stbsp__int32 i; - stbsp__uint32 c; - - // copy leading spaces (or when doing %8.4d stuff) - if ((fl & STBSP__LEFTJUST) == 0) - while (fw > 0) { - stbsp__cb_buf_clamp(i, fw); - fw -= i; - while (i) { - if ((((stbsp__uintptr)bf) & 3) == 0) - break; - *bf++ = ' '; - --i; - } - while (i >= 4) { - *(stbsp__uint32 *)bf = 0x20202020; - bf += 4; - i -= 4; - } - while (i) { - *bf++ = ' '; - --i; - } - stbsp__chk_cb_buf(1); - } - - // copy leader - sn = lead + 1; - while (lead[0]) { - stbsp__cb_buf_clamp(i, lead[0]); - lead[0] -= (char)i; - while (i) { - *bf++ = *sn++; - --i; - } - stbsp__chk_cb_buf(1); - } - - // copy leading zeros - c = cs >> 24; - cs &= 0xffffff; - cs = (fl & STBSP__TRIPLET_COMMA) - ? ((stbsp__uint32)(c - ((pr + cs) % (c + 1)))) - : 0; - while (pr > 0) { - stbsp__cb_buf_clamp(i, pr); - pr -= i; - if ((fl & STBSP__TRIPLET_COMMA) == 0) { - while (i) { - if ((((stbsp__uintptr)bf) & 3) == 0) - break; - *bf++ = '0'; - --i; - } - while (i >= 4) { - *(stbsp__uint32 *)bf = 0x30303030; - bf += 4; - i -= 4; - } - } - while (i) { - if ((fl & STBSP__TRIPLET_COMMA) && (cs++ == c)) { - cs = 0; - *bf++ = stbsp__comma; - } else - *bf++ = '0'; - --i; - } - stbsp__chk_cb_buf(1); - } - } - - // copy leader if there is still one - sn = lead + 1; - while (lead[0]) { - stbsp__int32 i; - stbsp__cb_buf_clamp(i, lead[0]); - lead[0] -= (char)i; - while (i) { - *bf++ = *sn++; - --i; - } - stbsp__chk_cb_buf(1); - } - - // copy the string - n = l; - while (n) { - stbsp__int32 i; - stbsp__cb_buf_clamp(i, n); - n -= i; - STBSP__UNALIGNED(while (i >= 4) { - *(stbsp__uint32 volatile *)bf = *(stbsp__uint32 volatile *)s; - bf += 4; - s += 4; - i -= 4; - }) - while (i) { - *bf++ = *s++; - --i; - } - stbsp__chk_cb_buf(1); - } - - // copy trailing zeros - while (tz) { - stbsp__int32 i; - stbsp__cb_buf_clamp(i, tz); - tz -= i; - while (i) { - if ((((stbsp__uintptr)bf) & 3) == 0) - break; - *bf++ = '0'; - --i; - } - while (i >= 4) { - *(stbsp__uint32 *)bf = 0x30303030; - bf += 4; - i -= 4; - } - while (i) { - *bf++ = '0'; - --i; - } - stbsp__chk_cb_buf(1); - } - - // copy tail if there is one - sn = tail + 1; - while (tail[0]) { - stbsp__int32 i; - stbsp__cb_buf_clamp(i, tail[0]); - tail[0] -= (char)i; - while (i) { - *bf++ = *sn++; - --i; - } - stbsp__chk_cb_buf(1); - } - - // handle the left justify - if (fl & STBSP__LEFTJUST) - if (fw > 0) { - while (fw) { - stbsp__int32 i; - stbsp__cb_buf_clamp(i, fw); - fw -= i; - while (i) { - if ((((stbsp__uintptr)bf) & 3) == 0) - break; - *bf++ = ' '; - --i; - } - while (i >= 4) { - *(stbsp__uint32 *)bf = 0x20202020; - bf += 4; - i -= 4; - } - while (i--) - *bf++ = ' '; - stbsp__chk_cb_buf(1); - } - } - break; - - default: // unknown, just copy code - s = num + STBSP__NUMSZ - 1; - *s = f[0]; - l = 1; - fw = fl = 0; - lead[0] = 0; - tail[0] = 0; - pr = 0; - dp = 0; - cs = 0; - goto scopy; - } - ++f; - } -endfmt: - - if (!callback) - *bf = 0; - else - stbsp__flush_cb(); - -done: - return tlen + (int)(bf - buf); -} - -// cleanup -#undef STBSP__LEFTJUST -#undef STBSP__LEADINGPLUS -#undef STBSP__LEADINGSPACE -#undef STBSP__LEADING_0X -#undef STBSP__LEADINGZERO -#undef STBSP__INTMAX -#undef STBSP__TRIPLET_COMMA -#undef STBSP__NEGATIVE -#undef STBSP__METRIC_SUFFIX -#undef STBSP__NUMSZ -#undef stbsp__chk_cb_bufL -#undef stbsp__chk_cb_buf -#undef stbsp__flush_cb -#undef stbsp__cb_buf_clamp - -// ============================================================================ -// wrapper functions - -STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(sprintf)(char *buf, char const *fmt, - ...) { - int result; - va_list va; - va_start(va, fmt); - result = STB_SPRINTF_DECORATE(vsprintfcb)(0, 0, buf, fmt, va); - va_end(va); - return result; -} - -typedef struct stbsp__context { - char *buf; - int count; - int length; - char tmp[STB_SPRINTF_MIN]; -} stbsp__context; - -static char *stbsp__clamp_callback(const char *buf, void *user, int len) { - stbsp__context *c = (stbsp__context *)user; - c->length += len; - - if (len > c->count) - len = c->count; - - if (len) { - if (buf != c->buf) { - const char *s, *se; - char *d; - d = c->buf; - s = buf; - se = buf + len; - do { - *d++ = *s++; - } while (s < se); - } - c->buf += len; - c->count -= len; - } - - if (c->count <= 0) - return c->tmp; - return (c->count >= STB_SPRINTF_MIN) - ? c->buf - : c->tmp; // go direct into buffer if you can -} - -static char *stbsp__count_clamp_callback(const char *buf, void *user, int len) { - stbsp__context *c = (stbsp__context *)user; - (void)sizeof(buf); - - c->length += len; - return c->tmp; // go direct into buffer if you can -} - -STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsnprintf)(char *buf, int count, - char const *fmt, - va_list va) { - stbsp__context c; - - if ((count == 0) && !buf) { - c.length = 0; - - STB_SPRINTF_DECORATE(vsprintfcb) - (stbsp__count_clamp_callback, &c, c.tmp, fmt, va); - } else { - int l; - - c.buf = buf; - c.count = count; - c.length = 0; - - STB_SPRINTF_DECORATE(vsprintfcb) - (stbsp__clamp_callback, &c, stbsp__clamp_callback(0, &c, 0), fmt, va); - - // zero-terminate - l = (int)(c.buf - buf); - if (l >= count) // should never be greater, only equal (or less) than count - l = count - 1; - buf[l] = 0; - } - - return c.length; -} - -STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(snprintf)(char *buf, int count, - char const *fmt, ...) { - int result; - va_list va; - va_start(va, fmt); - - result = STB_SPRINTF_DECORATE(vsnprintf)(buf, count, fmt, va); - va_end(va); - - return result; -} - -STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsprintf)(char *buf, char const *fmt, - va_list va) { - return STB_SPRINTF_DECORATE(vsprintfcb)(0, 0, buf, fmt, va); -} - -// ======================================================================= -// low level float utility functions - -#ifndef STB_SPRINTF_NOFLOAT - -// copies d to bits w/ strict aliasing (this compiles to nothing on /Ox) -#define STBSP__COPYFP(dest, src) \ - { \ - int cn; \ - for (cn = 0; cn < 8; cn++) \ - ((char *)&dest)[cn] = ((char *)&src)[cn]; \ - } - -// get float info -static stbsp__int32 stbsp__real_to_parts(stbsp__int64 *bits, stbsp__int32 *expo, - double value) { - double d; - stbsp__int64 b = 0; - - // load value and round at the frac_digits - d = value; - - STBSP__COPYFP(b, d); - - *bits = b & ((((stbsp__uint64)1) << 52) - 1); - *expo = (stbsp__int32)(((b >> 52) & 2047) - 1023); - - return (stbsp__int32)((stbsp__uint64)b >> 63); -} - -static double const stbsp__bot[23] = { - 1e+000, 1e+001, 1e+002, 1e+003, 1e+004, 1e+005, 1e+006, 1e+007, - 1e+008, 1e+009, 1e+010, 1e+011, 1e+012, 1e+013, 1e+014, 1e+015, - 1e+016, 1e+017, 1e+018, 1e+019, 1e+020, 1e+021, 1e+022}; -static double const stbsp__negbot[22] = { - 1e-001, 1e-002, 1e-003, 1e-004, 1e-005, 1e-006, 1e-007, 1e-008, - 1e-009, 1e-010, 1e-011, 1e-012, 1e-013, 1e-014, 1e-015, 1e-016, - 1e-017, 1e-018, 1e-019, 1e-020, 1e-021, 1e-022}; -static double const stbsp__negboterr[22] = { - -5.551115123125783e-018, -2.0816681711721684e-019, - -2.0816681711721686e-020, -4.7921736023859299e-021, - -8.1803053914031305e-022, 4.5251888174113741e-023, - 4.5251888174113739e-024, -2.0922560830128471e-025, - -6.2281591457779853e-026, -3.6432197315497743e-027, - 6.0503030718060191e-028, 2.0113352370744385e-029, - -3.0373745563400371e-030, 1.1806906454401013e-032, - -7.7705399876661076e-032, 2.0902213275965398e-033, - -7.1542424054621921e-034, -7.1542424054621926e-035, - 2.4754073164739869e-036, 5.4846728545790429e-037, - 9.2462547772103625e-038, -4.8596774326570872e-039}; -static double const stbsp__top[13] = {1e+023, 1e+046, 1e+069, 1e+092, 1e+115, - 1e+138, 1e+161, 1e+184, 1e+207, 1e+230, - 1e+253, 1e+276, 1e+299}; -static double const stbsp__negtop[13] = {1e-023, 1e-046, 1e-069, 1e-092, 1e-115, - 1e-138, 1e-161, 1e-184, 1e-207, 1e-230, - 1e-253, 1e-276, 1e-299}; -static double const stbsp__toperr[13] = {8388608, - 6.8601809640529717e+028, - -7.253143638152921e+052, - -4.3377296974619174e+075, - -1.5559416129466825e+098, - -3.2841562489204913e+121, - -3.7745893248228135e+144, - -1.7356668416969134e+167, - -3.8893577551088374e+190, - -9.9566444326005119e+213, - 6.3641293062232429e+236, - -5.2069140800249813e+259, - -5.2504760255204387e+282}; -static double const stbsp__negtoperr[13] = { - 3.9565301985100693e-040, -2.299904345391321e-063, - 3.6506201437945798e-086, 1.1875228833981544e-109, - -5.0644902316928607e-132, -6.7156837247865426e-155, - -2.812077463003139e-178, -5.7778912386589953e-201, - 7.4997100559334532e-224, -4.6439668915134491e-247, - -6.3691100762962136e-270, -9.436808465446358e-293, - 8.0970921678014997e-317}; - -#if defined(_MSC_VER) && (_MSC_VER <= 1200) -static stbsp__uint64 const stbsp__powten[20] = {1, - 10, - 100, - 1000, - 10000, - 100000, - 1000000, - 10000000, - 100000000, - 1000000000, - 10000000000, - 100000000000, - 1000000000000, - 10000000000000, - 100000000000000, - 1000000000000000, - 10000000000000000, - 100000000000000000, - 1000000000000000000, - 10000000000000000000U}; -#define stbsp__tento19th ((stbsp__uint64)1000000000000000000) -#else -static stbsp__uint64 const stbsp__powten[20] = {1, - 10, - 100, - 1000, - 10000, - 100000, - 1000000, - 10000000, - 100000000, - 1000000000, - 10000000000ULL, - 100000000000ULL, - 1000000000000ULL, - 10000000000000ULL, - 100000000000000ULL, - 1000000000000000ULL, - 10000000000000000ULL, - 100000000000000000ULL, - 1000000000000000000ULL, - 10000000000000000000ULL}; -#define stbsp__tento19th (1000000000000000000ULL) -#endif - -#define stbsp__ddmulthi(oh, ol, xh, yh) \ - { \ - double ahi = 0, alo, bhi = 0, blo; \ - stbsp__int64 bt; \ - oh = xh * yh; \ - STBSP__COPYFP(bt, xh); \ - bt &= ((~(stbsp__uint64)0) << 27); \ - STBSP__COPYFP(ahi, bt); \ - alo = xh - ahi; \ - STBSP__COPYFP(bt, yh); \ - bt &= ((~(stbsp__uint64)0) << 27); \ - STBSP__COPYFP(bhi, bt); \ - blo = yh - bhi; \ - ol = ((ahi * bhi - oh) + ahi * blo + alo * bhi) + alo * blo; \ - } - -#define stbsp__ddtoS64(ob, xh, xl) \ - { \ - double ahi = 0, alo, vh, t; \ - ob = (stbsp__int64)xh; \ - vh = (double)ob; \ - ahi = (xh - vh); \ - t = (ahi - xh); \ - alo = (xh - (ahi - t)) - (vh + t); \ - ob += (stbsp__int64)(ahi + alo + xl); \ - } - -#define stbsp__ddrenorm(oh, ol) \ - { \ - double s; \ - s = oh + ol; \ - ol = ol - (s - oh); \ - oh = s; \ - } - -#define stbsp__ddmultlo(oh, ol, xh, xl, yh, yl) ol = ol + (xh * yl + xl * yh); - -#define stbsp__ddmultlos(oh, ol, xh, yl) ol = ol + (xh * yl); - -static void -stbsp__raise_to_power10(double *ohi, double *olo, double d, - stbsp__int32 power) // power can be -323 to +350 -{ - double ph, pl; - if ((power >= 0) && (power <= 22)) { - stbsp__ddmulthi(ph, pl, d, stbsp__bot[power]); - } else { - stbsp__int32 e, et, eb; - double p2h, p2l; - - e = power; - if (power < 0) - e = -e; - et = (e * 0x2c9) >> 14; /* %23 */ - if (et > 13) - et = 13; - eb = e - (et * 23); - - ph = d; - pl = 0.0; - if (power < 0) { - if (eb) { - --eb; - stbsp__ddmulthi(ph, pl, d, stbsp__negbot[eb]); - stbsp__ddmultlos(ph, pl, d, stbsp__negboterr[eb]); - } - if (et) { - stbsp__ddrenorm(ph, pl); - --et; - stbsp__ddmulthi(p2h, p2l, ph, stbsp__negtop[et]); - stbsp__ddmultlo(p2h, p2l, ph, pl, stbsp__negtop[et], - stbsp__negtoperr[et]); - ph = p2h; - pl = p2l; - } - } else { - if (eb) { - e = eb; - if (eb > 22) - eb = 22; - e -= eb; - stbsp__ddmulthi(ph, pl, d, stbsp__bot[eb]); - if (e) { - stbsp__ddrenorm(ph, pl); - stbsp__ddmulthi(p2h, p2l, ph, stbsp__bot[e]); - stbsp__ddmultlos(p2h, p2l, stbsp__bot[e], pl); - ph = p2h; - pl = p2l; - } - } - if (et) { - stbsp__ddrenorm(ph, pl); - --et; - stbsp__ddmulthi(p2h, p2l, ph, stbsp__top[et]); - stbsp__ddmultlo(p2h, p2l, ph, pl, stbsp__top[et], stbsp__toperr[et]); - ph = p2h; - pl = p2l; - } - } - } - stbsp__ddrenorm(ph, pl); - *ohi = ph; - *olo = pl; -} - -// given a float value, returns the significant bits in bits, and the position -// of the -// decimal point in decimal_pos. +/-INF and NAN are specified by special -// values returned in the decimal_pos parameter. -// frac_digits is absolute normally, but if you want from first significant -// digits (got %g and %e), or in 0x80000000 -static stbsp__int32 stbsp__real_to_str(char const **start, stbsp__uint32 *len, - char *out, stbsp__int32 *decimal_pos, - double value, - stbsp__uint32 frac_digits) { - double d; - stbsp__int64 bits = 0; - stbsp__int32 expo, e, ng, tens; - - d = value; - STBSP__COPYFP(bits, d); - expo = (stbsp__int32)((bits >> 52) & 2047); - ng = (stbsp__int32)((stbsp__uint64)bits >> 63); - if (ng) - d = -d; - - if (expo == 2047) // is nan or inf? - { - *start = (bits & ((((stbsp__uint64)1) << 52) - 1)) ? "NaN" : "Inf"; - *decimal_pos = STBSP__SPECIAL; - *len = 3; - return ng; - } - - if (expo == 0) // is zero or denormal - { - if (((stbsp__uint64)bits << 1) == 0) // do zero - { - *decimal_pos = 1; - *start = out; - out[0] = '0'; - *len = 1; - return ng; - } - // find the right expo for denormals - { - stbsp__int64 v = ((stbsp__uint64)1) << 51; - while ((bits & v) == 0) { - --expo; - v >>= 1; - } - } - } - - // find the decimal exponent as well as the decimal bits of the value - { - double ph, pl; - - // log10 estimate - very specifically tweaked to hit or undershoot by no - // more than 1 of log10 of all expos 1..2046 - tens = expo - 1023; - tens = (tens < 0) ? ((tens * 617) / 2048) : (((tens * 1233) / 4096) + 1); - - // move the significant bits into position and stick them into an int - stbsp__raise_to_power10(&ph, &pl, d, 18 - tens); - - // get full as much precision from double-double as possible - stbsp__ddtoS64(bits, ph, pl); - - // check if we undershot - if (((stbsp__uint64)bits) >= stbsp__tento19th) - ++tens; - } - - // now do the rounding in integer land - frac_digits = (frac_digits & 0x80000000) ? ((frac_digits & 0x7ffffff) + 1) - : (tens + frac_digits); - if ((frac_digits < 24)) { - stbsp__uint32 dg = 1; - if ((stbsp__uint64)bits >= stbsp__powten[9]) - dg = 10; - while ((stbsp__uint64)bits >= stbsp__powten[dg]) { - ++dg; - if (dg == 20) - goto noround; - } - if (frac_digits < dg) { - stbsp__uint64 r; - // add 0.5 at the right position and round - e = dg - frac_digits; - if ((stbsp__uint32)e >= 24) - goto noround; - r = stbsp__powten[e]; - bits = bits + (r / 2); - if ((stbsp__uint64)bits >= stbsp__powten[dg]) - ++tens; - bits /= r; - } - noround:; - } - - // kill long trailing runs of zeros - if (bits) { - stbsp__uint32 n; - for (;;) { - if (bits <= 0xffffffff) - break; - if (bits % 1000) - goto donez; - bits /= 1000; - } - n = (stbsp__uint32)bits; - while ((n % 1000) == 0) - n /= 1000; - bits = n; - donez:; - } - - // convert to string - out += 64; - e = 0; - for (;;) { - stbsp__uint32 n; - char *o = out - 8; - // do the conversion in chunks of U32s (avoid most 64-bit divides, worth it, - // constant denomiators be damned) - if (bits >= 100000000) { - n = (stbsp__uint32)(bits % 100000000); - bits /= 100000000; - } else { - n = (stbsp__uint32)bits; - bits = 0; - } - while (n) { - out -= 2; - *(stbsp__uint16 *)out = - *(stbsp__uint16 *)&stbsp__digitpair.pair[(n % 100) * 2]; - n /= 100; - e += 2; - } - if (bits == 0) { - if ((e) && (out[0] == '0')) { - ++out; - --e; - } - break; - } - while (out != o) { - *--out = '0'; - ++e; - } - } - - *decimal_pos = tens; - *start = out; - *len = e; - return ng; -} - -#undef stbsp__ddmulthi -#undef stbsp__ddrenorm -#undef stbsp__ddmultlo -#undef stbsp__ddmultlos -#undef STBSP__SPECIAL -#undef STBSP__COPYFP - -#endif // STB_SPRINTF_NOFLOAT - -// clean up -#undef stbsp__uint16 -#undef stbsp__uint32 -#undef stbsp__int32 -#undef stbsp__uint64 -#undef stbsp__int64 -#undef STBSP__UNALIGNED - -#endif // STB_SPRINTF_IMPLEMENTATION - -/* ------------------------------------------------------------------------------- -This software is available under 2 licenses -- choose whichever you prefer. ------------------------------------------------------------------------------- -ALTERNATIVE A - MIT License -Copyright (c) 2017 Sean Barrett -Permission is hereby granted, free of charge, to any person obtaining a copy of -this software and associated documentation files (the "Software"), to deal in -the Software without restriction, including without limitation the rights to -use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies -of the Software, and to permit persons to whom the Software is furnished to do -so, subject to the following conditions: -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. ------------------------------------------------------------------------------- -ALTERNATIVE B - Public Domain (www.unlicense.org) -This is free and unencumbered software released into the public domain. -Anyone is free to copy, modify, publish, use, compile, sell, or distribute this -software, either in source code form or as a compiled binary, for any purpose, -commercial or non-commercial, and by any means. -In jurisdictions that recognize copyright laws, the author or authors of this -software dedicate any and all copyright interest in the software to the public -domain. We make this dedication for the benefit of the public at large and to -the detriment of our heirs and successors. We intend this dedication to be an -overt act of relinquishment in perpetuity of all present and future rights to -this software under copyright law. -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION -WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ------------------------------------------------------------------------------- -*/ +// stb_sprintf - v1.10 - public domain snprintf() implementation +// originally by Jeff Roberts / RAD Game Tools, 2015/10/20 +// http://github.com/nothings/stb +// +// allowed types: sc uidBboXx p AaGgEef n +// lengths : hh h ll j z t I64 I32 I +// +// Contributors: +// Fabian "ryg" Giesen (reformatting) +// github:aganm (attribute format) +// +// Contributors (bugfixes): +// github:d26435 +// github:trex78 +// github:account-login +// Jari Komppa (SI suffixes) +// Rohit Nirmal +// Marcin Wojdyr +// Leonard Ritter +// Stefano Zanotti +// Adam Allison +// Arvid Gerstmann +// Markus Kolb +// +// LICENSE: +// +// See end of file for license information. + +#ifndef STB_SPRINTF_H_INCLUDE +#define STB_SPRINTF_H_INCLUDE + +/* +Single file sprintf replacement. + +Originally written by Jeff Roberts at RAD Game Tools - 2015/10/20. +Hereby placed in public domain. + +This is a full sprintf replacement that supports everything that +the C runtime sprintfs support, including float/double, 64-bit integers, +hex floats, field parameters (%*.*d stuff), length reads backs, etc. + +Why would you need this if sprintf already exists? Well, first off, +it's *much* faster (see below). It's also much smaller than the CRT +versions code-space-wise. We've also added some simple improvements +that are super handy (commas in thousands, callbacks at buffer full, +for example). Finally, the format strings for MSVC and GCC differ +for 64-bit integers (among other small things), so this lets you use +the same format strings in cross platform code. + +It uses the standard single file trick of being both the header file +and the source itself. If you just include it normally, you just get +the header file function definitions. To get the code, you include +it from a C or C++ file and define STB_SPRINTF_IMPLEMENTATION first. + +It only uses va_args macros from the C runtime to do it's work. It +does cast doubles to S64s and shifts and divides U64s, which does +drag in CRT code on most platforms. + +It compiles to roughly 8K with float support, and 4K without. +As a comparison, when using MSVC static libs, calling sprintf drags +in 16K. + +API: +==== +int stbsp_sprintf( char * buf, char const * fmt, ... ) +int stbsp_snprintf( char * buf, int count, char const * fmt, ... ) + Convert an arg list into a buffer. stbsp_snprintf always returns + a zero-terminated string (unlike regular snprintf). + +int stbsp_vsprintf( char * buf, char const * fmt, va_list va ) +int stbsp_vsnprintf( char * buf, int count, char const * fmt, va_list va ) + Convert a va_list arg list into a buffer. stbsp_vsnprintf always returns + a zero-terminated string (unlike regular snprintf). + +int stbsp_vsprintfcb( STBSP_SPRINTFCB * callback, void * user, char * buf, char +const * fmt, va_list va ) typedef char * STBSP_SPRINTFCB( char const * buf, void +* user, int len ); Convert into a buffer, calling back every STB_SPRINTF_MIN +chars. Your callback can then copy the chars out, print them or whatever. This +function is actually the workhorse for everything else. The buffer you pass in +must hold at least STB_SPRINTF_MIN characters. + // you return the next buffer to use or 0 to stop converting + +void stbsp_set_separators( char comma, char period ) + Set the comma and period characters to use. + +FLOATS/DOUBLES: +=============== +This code uses a internal float->ascii conversion method that uses +doubles with error correction (double-doubles, for ~105 bits of +precision). This conversion is round-trip perfect - that is, an atof +of the values output here will give you the bit-exact double back. + +One difference is that our insignificant digits will be different than +with MSVC or GCC (but they don't match each other either). We also +don't attempt to find the minimum length matching float (pre-MSVC15 +doesn't either). + +If you don't need float or doubles at all, define STB_SPRINTF_NOFLOAT +and you'll save 4K of code space. + +64-BIT INTS: +============ +This library also supports 64-bit integers and you can use MSVC style or +GCC style indicators (%I64d or %lld). It supports the C99 specifiers +for size_t and ptr_diff_t (%jd %zd) as well. + +EXTRAS: +======= +Like some GCCs, for integers and floats, you can use a ' (single quote) +specifier and commas will be inserted on the thousands: "%'d" on 12345 +would print 12,345. + +For integers and floats, you can use a "$" specifier and the number +will be converted to float and then divided to get kilo, mega, giga or +tera and then printed, so "%$d" 1000 is "1.0 k", "%$.2d" 2536000 is +"2.53 M", etc. For byte values, use two $:s, like "%$$d" to turn +2536000 to "2.42 Mi". If you prefer JEDEC suffixes to SI ones, use three +$:s: "%$$$d" -> "2.42 M". To remove the space between the number and the +suffix, add "_" specifier: "%_$d" -> "2.53M". + +In addition to octal and hexadecimal conversions, you can print +integers in binary: "%b" for 256 would print 100. + +PERFORMANCE vs MSVC 2008 32-/64-bit (GCC is even slower than MSVC): +=================================================================== +"%d" across all 32-bit ints (4.8x/4.0x faster than 32-/64-bit MSVC) +"%24d" across all 32-bit ints (4.5x/4.2x faster) +"%x" across all 32-bit ints (4.5x/3.8x faster) +"%08x" across all 32-bit ints (4.3x/3.8x faster) +"%f" across e-10 to e+10 floats (7.3x/6.0x faster) +"%e" across e-10 to e+10 floats (8.1x/6.0x faster) +"%g" across e-10 to e+10 floats (10.0x/7.1x faster) +"%f" for values near e-300 (7.9x/6.5x faster) +"%f" for values near e+300 (10.0x/9.1x faster) +"%e" for values near e-300 (10.1x/7.0x faster) +"%e" for values near e+300 (9.2x/6.0x faster) +"%.320f" for values near e-300 (12.6x/11.2x faster) +"%a" for random values (8.6x/4.3x faster) +"%I64d" for 64-bits with 32-bit values (4.8x/3.4x faster) +"%I64d" for 64-bits > 32-bit values (4.9x/5.5x faster) +"%s%s%s" for 64 char strings (7.1x/7.3x faster) +"...512 char string..." ( 35.0x/32.5x faster!) +*/ + +#if defined(__clang__) +#if defined(__has_feature) && defined(__has_attribute) +#if __has_feature(address_sanitizer) +#if __has_attribute(__no_sanitize__) +#define STBSP__ASAN __attribute__((__no_sanitize__("address"))) +#elif __has_attribute(__no_sanitize_address__) +#define STBSP__ASAN __attribute__((__no_sanitize_address__)) +#elif __has_attribute(__no_address_safety_analysis__) +#define STBSP__ASAN __attribute__((__no_address_safety_analysis__)) +#endif +#endif +#endif +#elif defined(__GNUC__) && \ + (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) +#if defined(__SANITIZE_ADDRESS__) && __SANITIZE_ADDRESS__ +#define STBSP__ASAN __attribute__((__no_sanitize_address__)) +#endif +#endif + +#ifndef STBSP__ASAN +#define STBSP__ASAN +#endif + +#ifdef STB_SPRINTF_STATIC +#define STBSP__PUBLICDEC static +#define STBSP__PUBLICDEF static STBSP__ASAN +#else +#ifdef __cplusplus +#define STBSP__PUBLICDEC extern "C" +#define STBSP__PUBLICDEF extern "C" STBSP__ASAN +#else +#define STBSP__PUBLICDEC extern +#define STBSP__PUBLICDEF STBSP__ASAN +#endif +#endif + +#if defined(__has_attribute) +#if __has_attribute(format) +#define STBSP__ATTRIBUTE_FORMAT(fmt, va) \ + __attribute__((format(printf, fmt, va))) +#endif +#endif + +#ifndef STBSP__ATTRIBUTE_FORMAT +#define STBSP__ATTRIBUTE_FORMAT(fmt, va) +#endif + +#ifdef _MSC_VER +#define STBSP__NOTUSED(v) (void)(v) +#else +#define STBSP__NOTUSED(v) (void)sizeof(v) +#endif + +#include // for va_arg(), va_list() +#include // size_t, ptrdiff_t +#include + +#ifndef STB_SPRINTF_MIN +#define STB_SPRINTF_MIN 512 // how many characters per callback +#endif +typedef char *STBSP_SPRINTFCB(const char *buf, void *user, int len); + +#ifndef STB_SPRINTF_DECORATE +#define STB_SPRINTF_DECORATE(name) \ + stbsp_##name // define this before including if you want to change the names +#endif + +STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsprintf)(char *buf, char const *fmt, + va_list va); +STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsnprintf)(char *buf, int count, + char const *fmt, + va_list va); +STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(sprintf)(char *buf, char const *fmt, + ...) + STBSP__ATTRIBUTE_FORMAT(2, 3); +STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(snprintf)(char *buf, int count, + char const *fmt, ...) + STBSP__ATTRIBUTE_FORMAT(3, 4); + +STBSP__PUBLICDEC int STB_SPRINTF_DECORATE(vsprintfcb)(STBSP_SPRINTFCB *callback, + void *user, char *buf, + char const *fmt, + va_list va); +STBSP__PUBLICDEC void STB_SPRINTF_DECORATE(set_separators)(char comma, + char period); + +#endif // STB_SPRINTF_H_INCLUDE + +#ifdef STB_SPRINTF_IMPLEMENTATION + +#define stbsp__uint32 unsigned int +#define stbsp__int32 signed int + +#ifdef _MSC_VER +#define stbsp__uint64 unsigned __int64 +#define stbsp__int64 signed __int64 +#else +#define stbsp__uint64 unsigned long long +#define stbsp__int64 signed long long +#endif +#define stbsp__uint16 unsigned short + +#ifndef stbsp__uintptr +#if defined(__ppc64__) || defined(__powerpc64__) || defined(__aarch64__) || \ + defined(_M_X64) || defined(__x86_64__) || defined(__x86_64) || \ + defined(__s390x__) +#define stbsp__uintptr stbsp__uint64 +#else +#define stbsp__uintptr stbsp__uint32 +#endif +#endif + +#ifndef STB_SPRINTF_MSVC_MODE // used for MSVC2013 and earlier (MSVC2015 matches + // GCC) +#if defined(_MSC_VER) && (_MSC_VER < 1900) +#define STB_SPRINTF_MSVC_MODE +#endif +#endif + +#ifdef STB_SPRINTF_NOUNALIGNED // define this before inclusion to force + // stbsp_sprintf to always use aligned accesses +#define STBSP__UNALIGNED(code) +#else +#define STBSP__UNALIGNED(code) code +#endif + +#ifndef STB_SPRINTF_NOFLOAT +// internal float utility functions +static stbsp__int32 stbsp__real_to_str(char const **start, stbsp__uint32 *len, + char *out, stbsp__int32 *decimal_pos, + double value, stbsp__uint32 frac_digits); +static stbsp__int32 stbsp__real_to_parts(stbsp__int64 *bits, stbsp__int32 *expo, + double value); +#define STBSP__SPECIAL 0x7000 +#endif + +static char stbsp__period = '.'; +static char stbsp__comma = ','; +static struct { + short temp; // force next field to be 2-byte aligned + char pair[201]; +} stbsp__digitpair = {0, "00010203040506070809101112131415161718192021222324" + "25262728293031323334353637383940414243444546474849" + "50515253545556575859606162636465666768697071727374" + "75767778798081828384858687888990919293949596979899"}; + +STBSP__PUBLICDEF void STB_SPRINTF_DECORATE(set_separators)(char pcomma, + char pperiod) { + stbsp__period = pperiod; + stbsp__comma = pcomma; +} + +#define STBSP__LEFTJUST 1 +#define STBSP__LEADINGPLUS 2 +#define STBSP__LEADINGSPACE 4 +#define STBSP__LEADING_0X 8 +#define STBSP__LEADINGZERO 16 +#define STBSP__INTMAX 32 +#define STBSP__TRIPLET_COMMA 64 +#define STBSP__NEGATIVE 128 +#define STBSP__METRIC_SUFFIX 256 +#define STBSP__HALFWIDTH 512 +#define STBSP__METRIC_NOSPACE 1024 +#define STBSP__METRIC_1024 2048 +#define STBSP__METRIC_JEDEC 4096 + +static void stbsp__lead_sign(stbsp__uint32 fl, char *sign) { + sign[0] = 0; + if (fl & STBSP__NEGATIVE) { + sign[0] = 1; + sign[1] = '-'; + } else if (fl & STBSP__LEADINGSPACE) { + sign[0] = 1; + sign[1] = ' '; + } else if (fl & STBSP__LEADINGPLUS) { + sign[0] = 1; + sign[1] = '+'; + } +} + +static STBSP__ASAN stbsp__uint32 stbsp__strlen_limited(char const *s, + stbsp__uint32 limit) { + char const *sn = s; + + // get up to 4-byte alignment + for (;;) { + if (((stbsp__uintptr)sn & 3) == 0) + break; + + if (!limit || *sn == 0) + return (stbsp__uint32)(sn - s); + + ++sn; + --limit; + } + + // scan over 4 bytes at a time to find terminating 0 + // this will intentionally scan up to 3 bytes past the end of buffers, + // but becase it works 4B aligned, it will never cross page boundaries + // (hence the STBSP__ASAN markup; the over-read here is intentional + // and harmless) + while (limit >= 4) { + stbsp__uint32 v = *(stbsp__uint32 *)sn; + // bit hack to find if there's a 0 byte in there + if ((v - 0x01010101) & (~v) & 0x80808080UL) + break; + + sn += 4; + limit -= 4; + } + + // handle the last few characters to find actual size + while (limit && *sn) { + ++sn; + --limit; + } + + return (stbsp__uint32)(sn - s); +} + +STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsprintfcb)(STBSP_SPRINTFCB *callback, + void *user, char *buf, + char const *fmt, + va_list va) { + static char hex[] = "0123456789abcdefxp"; + static char hexu[] = "0123456789ABCDEFXP"; + char *bf; + char const *f; + int tlen = 0; + + bf = buf; + f = fmt; + for (;;) { + stbsp__int32 fw, pr, tz; + stbsp__uint32 fl; + + // macros for the callback buffer stuff +#define stbsp__chk_cb_bufL(bytes) \ + { \ + int len = (int)(bf - buf); \ + if ((len + (bytes)) >= STB_SPRINTF_MIN) { \ + tlen += len; \ + if (0 == (bf = buf = callback(buf, user, len))) \ + goto done; \ + } \ + } +#define stbsp__chk_cb_buf(bytes) \ + { \ + if (callback) { \ + stbsp__chk_cb_bufL(bytes); \ + } \ + } +#define stbsp__flush_cb() \ + { \ + stbsp__chk_cb_bufL(STB_SPRINTF_MIN - 1); \ + } // flush if there is even one byte in the buffer +#define stbsp__cb_buf_clamp(cl, v) \ + cl = v; \ + if (callback) { \ + int lg = STB_SPRINTF_MIN - (int)(bf - buf); \ + if (cl > lg) \ + cl = lg; \ + } + + // fast copy everything up to the next % (or end of string) + for (;;) { + while (((stbsp__uintptr)f) & 3) { + schk1: + if (f[0] == '%') + goto scandd; + schk2: + if (f[0] == 0) + goto endfmt; + stbsp__chk_cb_buf(1); + *bf++ = f[0]; + ++f; + } + for (;;) { + // Check if the next 4 bytes contain %(0x25) or end of string. + // Using the 'hasless' trick: + // https://graphics.stanford.edu/~seander/bithacks.html#HasLessInWord + stbsp__uint32 v, c; + v = *(stbsp__uint32 *)f; + c = (~v) & 0x80808080; + if (((v ^ 0x25252525) - 0x01010101) & c) + goto schk1; + if ((v - 0x01010101) & c) + goto schk2; + if (callback) + if ((STB_SPRINTF_MIN - (int)(bf - buf)) < 4) + goto schk1; +#ifdef STB_SPRINTF_NOUNALIGNED + if (((stbsp__uintptr)bf) & 3) { + bf[0] = f[0]; + bf[1] = f[1]; + bf[2] = f[2]; + bf[3] = f[3]; + } else +#endif + { + *(stbsp__uint32 *)bf = v; + } + bf += 4; + f += 4; + } + } + scandd: + + ++f; + + // ok, we have a percent, read the modifiers first + fw = 0; + pr = -1; + fl = 0; + tz = 0; + + // flags + for (;;) { + switch (f[0]) { + // if we have left justify + case '-': + fl |= STBSP__LEFTJUST; + ++f; + continue; + // if we have leading plus + case '+': + fl |= STBSP__LEADINGPLUS; + ++f; + continue; + // if we have leading space + case ' ': + fl |= STBSP__LEADINGSPACE; + ++f; + continue; + // if we have leading 0x + case '#': + fl |= STBSP__LEADING_0X; + ++f; + continue; + // if we have thousand commas + case '\'': + fl |= STBSP__TRIPLET_COMMA; + ++f; + continue; + // if we have kilo marker (none->kilo->kibi->jedec) + case '$': + if (fl & STBSP__METRIC_SUFFIX) { + if (fl & STBSP__METRIC_1024) { + fl |= STBSP__METRIC_JEDEC; + } else { + fl |= STBSP__METRIC_1024; + } + } else { + fl |= STBSP__METRIC_SUFFIX; + } + ++f; + continue; + // if we don't want space between metric suffix and number + case '_': + fl |= STBSP__METRIC_NOSPACE; + ++f; + continue; + // if we have leading zero + case '0': + fl |= STBSP__LEADINGZERO; + ++f; + goto flags_done; + default: + goto flags_done; + } + } + flags_done: + + // get the field width + if (f[0] == '*') { + fw = va_arg(va, stbsp__uint32); + ++f; + } else { + while ((f[0] >= '0') && (f[0] <= '9')) { + fw = fw * 10 + f[0] - '0'; + f++; + } + } + // get the precision + if (f[0] == '.') { + ++f; + if (f[0] == '*') { + pr = va_arg(va, stbsp__uint32); + ++f; + } else { + pr = 0; + while ((f[0] >= '0') && (f[0] <= '9')) { + pr = pr * 10 + f[0] - '0'; + f++; + } + } + } + + // handle integer size overrides + switch (f[0]) { + // are we halfwidth? + case 'h': + fl |= STBSP__HALFWIDTH; + ++f; + if (f[0] == 'h') + ++f; // QUARTERWIDTH + break; + // are we 64-bit (unix style) + case 'l': + fl |= ((sizeof(long) == 8) ? STBSP__INTMAX : 0); + ++f; + if (f[0] == 'l') { + fl |= STBSP__INTMAX; + ++f; + } + break; + // are we 64-bit on intmax? (c99) + case 'j': + fl |= (sizeof(size_t) == 8) ? STBSP__INTMAX : 0; + ++f; + break; + // are we 64-bit on size_t or ptrdiff_t? (c99) + case 'z': + fl |= (sizeof(ptrdiff_t) == 8) ? STBSP__INTMAX : 0; + ++f; + break; + case 't': + fl |= (sizeof(ptrdiff_t) == 8) ? STBSP__INTMAX : 0; + ++f; + break; + // are we 64-bit (msft style) + case 'I': + if ((f[1] == '6') && (f[2] == '4')) { + fl |= STBSP__INTMAX; + f += 3; + } else if ((f[1] == '3') && (f[2] == '2')) { + f += 3; + } else { + fl |= ((sizeof(void *) == 8) ? STBSP__INTMAX : 0); + ++f; + } + break; + default: + break; + } + + // handle each replacement + switch (f[0]) { +#define STBSP__NUMSZ 512 // big enough for e308 (with commas) or e-307 + char num[STBSP__NUMSZ]; + char lead[8]; + char tail[8]; + char *s; + char const *h; + stbsp__uint32 l, n, cs; + stbsp__uint64 n64; +#ifndef STB_SPRINTF_NOFLOAT + double fv; +#endif + stbsp__int32 dp; + char const *sn; + // struct STB_STRING { char *str; int64_t len; }; + // struct STB_STRING str; + + // case 'S': + // str = va_arg(va, struct STB_STRING); + // if (str.str == 0 && str.len != 0) { + // str.str = (char *)"null"; + // str.len = 4; + // } + // pr = (int)str.len; + // s = (char *)str.str; + // l = stbsp__strlen_limited(s, (pr >= 0) ? pr : ~0u); + // lead[0] = 0; + // tail[0] = 0; + // pr = 0; + // dp = 0; + // cs = 0; + // goto scopy; + + case 's': + // get the string + s = va_arg(va, char *); + if (s == 0) + s = (char *)"null"; + // get the length, limited to desired precision + // always limit to ~0u chars since our counts are 32b + l = stbsp__strlen_limited(s, (pr >= 0) ? pr : ~0u); + lead[0] = 0; + tail[0] = 0; + pr = 0; + dp = 0; + cs = 0; + // copy the string in + goto scopy; + + case 'c': // char + // get the character + s = num + STBSP__NUMSZ - 1; + *s = (char)va_arg(va, int); + l = 1; + lead[0] = 0; + tail[0] = 0; + pr = 0; + dp = 0; + cs = 0; + goto scopy; + + case 'n': // weird write-bytes specifier + { + int *d = va_arg(va, int *); + *d = tlen + (int)(bf - buf); + } break; + +#ifdef STB_SPRINTF_NOFLOAT + case 'A': // float + case 'a': // hex float + case 'G': // float + case 'g': // float + case 'E': // float + case 'e': // float + case 'f': // float + va_arg(va, double); // eat it + s = (char *)"No float"; + l = 8; + lead[0] = 0; + tail[0] = 0; + pr = 0; + cs = 0; + STBSP__NOTUSED(dp); + goto scopy; +#else + case 'A': // hex float + case 'a': // hex float + h = (f[0] == 'A') ? hexu : hex; + fv = va_arg(va, double); + if (pr == -1) + pr = 6; // default is 6 + // read the double into a string + if (stbsp__real_to_parts((stbsp__int64 *)&n64, &dp, fv)) + fl |= STBSP__NEGATIVE; + + s = num + 64; + + stbsp__lead_sign(fl, lead); + + if (dp == -1023) + dp = (n64) ? -1022 : 0; + else + n64 |= (((stbsp__uint64)1) << 52); + n64 <<= (64 - 56); + if (pr < 15) + n64 += ((((stbsp__uint64)8) << 56) >> (pr * 4)); + // add leading chars + +#ifdef STB_SPRINTF_MSVC_MODE + *s++ = '0'; + *s++ = 'x'; +#else + lead[1 + lead[0]] = '0'; + lead[2 + lead[0]] = 'x'; + lead[0] += 2; +#endif + *s++ = h[(n64 >> 60) & 15]; + n64 <<= 4; + if (pr) + *s++ = stbsp__period; + sn = s; + + // print the bits + n = pr; + if (n > 13) + n = 13; + if (pr > (stbsp__int32)n) + tz = pr - n; + pr = 0; + while (n--) { + *s++ = h[(n64 >> 60) & 15]; + n64 <<= 4; + } + + // print the expo + tail[1] = h[17]; + if (dp < 0) { + tail[2] = '-'; + dp = -dp; + } else + tail[2] = '+'; + n = (dp >= 1000) ? 6 : ((dp >= 100) ? 5 : ((dp >= 10) ? 4 : 3)); + tail[0] = (char)n; + for (;;) { + tail[n] = '0' + dp % 10; + if (n <= 3) + break; + --n; + dp /= 10; + } + + dp = (int)(s - sn); + l = (int)(s - (num + 64)); + s = num + 64; + cs = 1 + (3 << 24); + goto scopy; + + case 'G': // float + case 'g': // float + h = (f[0] == 'G') ? hexu : hex; + fv = va_arg(va, double); + if (pr == -1) + pr = 6; + else if (pr == 0) + pr = 1; // default is 6 + // read the double into a string + if (stbsp__real_to_str(&sn, &l, num, &dp, fv, (pr - 1) | 0x80000000)) + fl |= STBSP__NEGATIVE; + + // clamp the precision and delete extra zeros after clamp + n = pr; + if (l > (stbsp__uint32)pr) + l = pr; + while ((l > 1) && (pr) && (sn[l - 1] == '0')) { + --pr; + --l; + } + + // should we use %e + if ((dp <= -4) || (dp > (stbsp__int32)n)) { + if (pr > (stbsp__int32)l) + pr = l - 1; + else if (pr) + --pr; // when using %e, there is one digit before the decimal + goto doexpfromg; + } + // this is the insane action to get the pr to match %g semantics for %f + if (dp > 0) { + pr = (dp < (stbsp__int32)l) ? l - dp : 0; + } else { + pr = -dp + ((pr > (stbsp__int32)l) ? (stbsp__int32)l : pr); + } + goto dofloatfromg; + + case 'E': // float + case 'e': // float + h = (f[0] == 'E') ? hexu : hex; + fv = va_arg(va, double); + if (pr == -1) + pr = 6; // default is 6 + // read the double into a string + if (stbsp__real_to_str(&sn, &l, num, &dp, fv, pr | 0x80000000)) + fl |= STBSP__NEGATIVE; + doexpfromg: + tail[0] = 0; + stbsp__lead_sign(fl, lead); + if (dp == STBSP__SPECIAL) { + s = (char *)sn; + cs = 0; + pr = 0; + goto scopy; + } + s = num + 64; + // handle leading chars + *s++ = sn[0]; + + if (pr) + *s++ = stbsp__period; + + // handle after decimal + if ((l - 1) > (stbsp__uint32)pr) + l = pr + 1; + for (n = 1; n < l; n++) + *s++ = sn[n]; + // trailing zeros + tz = pr - (l - 1); + pr = 0; + // dump expo + tail[1] = h[0xe]; + dp -= 1; + if (dp < 0) { + tail[2] = '-'; + dp = -dp; + } else + tail[2] = '+'; +#ifdef STB_SPRINTF_MSVC_MODE + n = 5; +#else + n = (dp >= 100) ? 5 : 4; +#endif + tail[0] = (char)n; + for (;;) { + tail[n] = '0' + dp % 10; + if (n <= 3) + break; + --n; + dp /= 10; + } + cs = 1 + (3 << 24); // how many tens + goto flt_lead; + + case 'f': // float + fv = va_arg(va, double); + doafloat: + // do kilos + if (fl & STBSP__METRIC_SUFFIX) { + double divisor; + divisor = 1000.0f; + if (fl & STBSP__METRIC_1024) + divisor = 1024.0; + while (fl < 0x4000000) { + if ((fv < divisor) && (fv > -divisor)) + break; + fv /= divisor; + fl += 0x1000000; + } + } + if (pr == -1) + pr = 6; // default is 6 + // read the double into a string + if (stbsp__real_to_str(&sn, &l, num, &dp, fv, pr)) + fl |= STBSP__NEGATIVE; + dofloatfromg: + tail[0] = 0; + stbsp__lead_sign(fl, lead); + if (dp == STBSP__SPECIAL) { + s = (char *)sn; + cs = 0; + pr = 0; + goto scopy; + } + s = num + 64; + + // handle the three decimal varieties + if (dp <= 0) { + stbsp__int32 i; + // handle 0.000*000xxxx + *s++ = '0'; + if (pr) + *s++ = stbsp__period; + n = -dp; + if ((stbsp__int32)n > pr) + n = pr; + i = n; + while (i) { + if ((((stbsp__uintptr)s) & 3) == 0) + break; + *s++ = '0'; + --i; + } + while (i >= 4) { + *(stbsp__uint32 *)s = 0x30303030; + s += 4; + i -= 4; + } + while (i) { + *s++ = '0'; + --i; + } + if ((stbsp__int32)(l + n) > pr) + l = pr - n; + i = l; + while (i) { + *s++ = *sn++; + --i; + } + tz = pr - (n + l); + cs = 1 + (3 << 24); // how many tens did we write (for commas below) + } else { + cs = (fl & STBSP__TRIPLET_COMMA) ? ((600 - (stbsp__uint32)dp) % 3) : 0; + if ((stbsp__uint32)dp >= l) { + // handle xxxx000*000.0 + n = 0; + for (;;) { + if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) { + cs = 0; + *s++ = stbsp__comma; + } else { + *s++ = sn[n]; + ++n; + if (n >= l) + break; + } + } + if (n < (stbsp__uint32)dp) { + n = dp - n; + if ((fl & STBSP__TRIPLET_COMMA) == 0) { + while (n) { + if ((((stbsp__uintptr)s) & 3) == 0) + break; + *s++ = '0'; + --n; + } + while (n >= 4) { + *(stbsp__uint32 *)s = 0x30303030; + s += 4; + n -= 4; + } + } + while (n) { + if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) { + cs = 0; + *s++ = stbsp__comma; + } else { + *s++ = '0'; + --n; + } + } + } + cs = (int)(s - (num + 64)) + (3 << 24); // cs is how many tens + if (pr) { + *s++ = stbsp__period; + tz = pr; + } + } else { + // handle xxxxx.xxxx000*000 + n = 0; + for (;;) { + if ((fl & STBSP__TRIPLET_COMMA) && (++cs == 4)) { + cs = 0; + *s++ = stbsp__comma; + } else { + *s++ = sn[n]; + ++n; + if (n >= (stbsp__uint32)dp) + break; + } + } + cs = (int)(s - (num + 64)) + (3 << 24); // cs is how many tens + if (pr) + *s++ = stbsp__period; + if ((l - dp) > (stbsp__uint32)pr) + l = pr + dp; + while (n < l) { + *s++ = sn[n]; + ++n; + } + tz = pr - (l - dp); + } + } + pr = 0; + + // handle k,m,g,t + if (fl & STBSP__METRIC_SUFFIX) { + char idx; + idx = 1; + if (fl & STBSP__METRIC_NOSPACE) + idx = 0; + tail[0] = idx; + tail[1] = ' '; + { + if (fl >> 24) { // SI kilo is 'k', JEDEC and SI kibits are 'K'. + if (fl & STBSP__METRIC_1024) + tail[idx + 1] = "_KMGT"[fl >> 24]; + else + tail[idx + 1] = "_kMGT"[fl >> 24]; + idx++; + // If printing kibits and not in jedec, add the 'i'. + if (fl & STBSP__METRIC_1024 && !(fl & STBSP__METRIC_JEDEC)) { + tail[idx + 1] = 'i'; + idx++; + } + tail[0] = idx; + } + } + }; + + flt_lead: + // get the length that we copied + l = (stbsp__uint32)(s - (num + 64)); + s = num + 64; + goto scopy; +#endif + + case 'B': // upper binary + case 'b': // lower binary + h = (f[0] == 'B') ? hexu : hex; + lead[0] = 0; + if (fl & STBSP__LEADING_0X) { + lead[0] = 2; + lead[1] = '0'; + lead[2] = h[0xb]; + } + l = (8 << 4) | (1 << 8); + goto radixnum; + + case 'o': // octal + h = hexu; + lead[0] = 0; + if (fl & STBSP__LEADING_0X) { + lead[0] = 1; + lead[1] = '0'; + } + l = (3 << 4) | (3 << 8); + goto radixnum; + + case 'p': // pointer + fl |= (sizeof(void *) == 8) ? STBSP__INTMAX : 0; + pr = sizeof(void *) * 2; + fl &= ~STBSP__LEADINGZERO; // 'p' only prints the pointer with zeros + // fall through - to X + + case 'X': // upper hex + case 'x': // lower hex + h = (f[0] == 'X') ? hexu : hex; + l = (4 << 4) | (4 << 8); + lead[0] = 0; + if (fl & STBSP__LEADING_0X) { + lead[0] = 2; + lead[1] = '0'; + lead[2] = h[16]; + } + radixnum: + // get the number + if (fl & STBSP__INTMAX) + n64 = va_arg(va, stbsp__uint64); + else + n64 = va_arg(va, stbsp__uint32); + + s = num + STBSP__NUMSZ; + dp = 0; + // clear tail, and clear leading if value is zero + tail[0] = 0; + if (n64 == 0) { + lead[0] = 0; + if (pr == 0) { + l = 0; + cs = 0; + goto scopy; + } + } + // convert to string + for (;;) { + *--s = h[n64 & ((1 << (l >> 8)) - 1)]; + n64 >>= (l >> 8); + if (!((n64) || ((stbsp__int32)((num + STBSP__NUMSZ) - s) < pr))) + break; + if (fl & STBSP__TRIPLET_COMMA) { + ++l; + if ((l & 15) == ((l >> 4) & 15)) { + l &= ~15; + *--s = stbsp__comma; + } + } + }; + // get the tens and the comma pos + cs = + (stbsp__uint32)((num + STBSP__NUMSZ) - s) + ((((l >> 4) & 15)) << 24); + // get the length that we copied + l = (stbsp__uint32)((num + STBSP__NUMSZ) - s); + // copy it + goto scopy; + + case 'u': // unsigned + case 'i': + case 'd': // integer + // get the integer and abs it + if (fl & STBSP__INTMAX) { + stbsp__int64 i64 = va_arg(va, stbsp__int64); + n64 = (stbsp__uint64)i64; + if ((f[0] != 'u') && (i64 < 0)) { + n64 = (stbsp__uint64)-i64; + fl |= STBSP__NEGATIVE; + } + } else { + stbsp__int32 i = va_arg(va, stbsp__int32); + n64 = (stbsp__uint32)i; + if ((f[0] != 'u') && (i < 0)) { + n64 = (stbsp__uint32)-i; + fl |= STBSP__NEGATIVE; + } + } + +#ifndef STB_SPRINTF_NOFLOAT + if (fl & STBSP__METRIC_SUFFIX) { + if (n64 < 1024) + pr = 0; + else if (pr == -1) + pr = 1; + fv = (double)(stbsp__int64)n64; + goto doafloat; + } +#endif + + // convert to string + s = num + STBSP__NUMSZ; + l = 0; + + for (;;) { + // do in 32-bit chunks (avoid lots of 64-bit divides even with constant + // denominators) + char *o = s - 8; + if (n64 >= 100000000) { + n = (stbsp__uint32)(n64 % 100000000); + n64 /= 100000000; + } else { + n = (stbsp__uint32)n64; + n64 = 0; + } + if ((fl & STBSP__TRIPLET_COMMA) == 0) { + do { + s -= 2; + *(stbsp__uint16 *)s = + *(stbsp__uint16 *)&stbsp__digitpair.pair[(n % 100) * 2]; + n /= 100; + } while (n); + } + while (n) { + if ((fl & STBSP__TRIPLET_COMMA) && (l++ == 3)) { + l = 0; + *--s = stbsp__comma; + --o; + } else { + *--s = (char)(n % 10) + '0'; + n /= 10; + } + } + if (n64 == 0) { + if ((s[0] == '0') && (s != (num + STBSP__NUMSZ))) + ++s; + break; + } + while (s != o) + if ((fl & STBSP__TRIPLET_COMMA) && (l++ == 3)) { + l = 0; + *--s = stbsp__comma; + --o; + } else { + *--s = '0'; + } + } + + tail[0] = 0; + stbsp__lead_sign(fl, lead); + + // get the length that we copied + l = (stbsp__uint32)((num + STBSP__NUMSZ) - s); + if (l == 0) { + *--s = '0'; + l = 1; + } + cs = l + (3 << 24); + if (pr < 0) + pr = 0; + + scopy: + // get fw=leading/trailing space, pr=leading zeros + if (pr < (stbsp__int32)l) + pr = l; + n = pr + lead[0] + tail[0] + tz; + if (fw < (stbsp__int32)n) + fw = n; + fw -= n; + pr -= l; + + // handle right justify and leading zeros + if ((fl & STBSP__LEFTJUST) == 0) { + if (fl & STBSP__LEADINGZERO) // if leading zeros, everything is in pr + { + pr = (fw > pr) ? fw : pr; + fw = 0; + } else { + fl &= ~STBSP__TRIPLET_COMMA; // if no leading zeros, then no commas + } + } + + // copy the spaces and/or zeros + if (fw + pr) { + stbsp__int32 i; + stbsp__uint32 c; + + // copy leading spaces (or when doing %8.4d stuff) + if ((fl & STBSP__LEFTJUST) == 0) + while (fw > 0) { + stbsp__cb_buf_clamp(i, fw); + fw -= i; + while (i) { + if ((((stbsp__uintptr)bf) & 3) == 0) + break; + *bf++ = ' '; + --i; + } + while (i >= 4) { + *(stbsp__uint32 *)bf = 0x20202020; + bf += 4; + i -= 4; + } + while (i) { + *bf++ = ' '; + --i; + } + stbsp__chk_cb_buf(1); + } + + // copy leader + sn = lead + 1; + while (lead[0]) { + stbsp__cb_buf_clamp(i, lead[0]); + lead[0] -= (char)i; + while (i) { + *bf++ = *sn++; + --i; + } + stbsp__chk_cb_buf(1); + } + + // copy leading zeros + c = cs >> 24; + cs &= 0xffffff; + cs = (fl & STBSP__TRIPLET_COMMA) + ? ((stbsp__uint32)(c - ((pr + cs) % (c + 1)))) + : 0; + while (pr > 0) { + stbsp__cb_buf_clamp(i, pr); + pr -= i; + if ((fl & STBSP__TRIPLET_COMMA) == 0) { + while (i) { + if ((((stbsp__uintptr)bf) & 3) == 0) + break; + *bf++ = '0'; + --i; + } + while (i >= 4) { + *(stbsp__uint32 *)bf = 0x30303030; + bf += 4; + i -= 4; + } + } + while (i) { + if ((fl & STBSP__TRIPLET_COMMA) && (cs++ == c)) { + cs = 0; + *bf++ = stbsp__comma; + } else + *bf++ = '0'; + --i; + } + stbsp__chk_cb_buf(1); + } + } + + // copy leader if there is still one + sn = lead + 1; + while (lead[0]) { + stbsp__int32 i; + stbsp__cb_buf_clamp(i, lead[0]); + lead[0] -= (char)i; + while (i) { + *bf++ = *sn++; + --i; + } + stbsp__chk_cb_buf(1); + } + + // copy the string + n = l; + while (n) { + stbsp__int32 i; + stbsp__cb_buf_clamp(i, n); + n -= i; + STBSP__UNALIGNED(while (i >= 4) { + *(stbsp__uint32 volatile *)bf = *(stbsp__uint32 volatile *)s; + bf += 4; + s += 4; + i -= 4; + }) + while (i) { + *bf++ = *s++; + --i; + } + stbsp__chk_cb_buf(1); + } + + // copy trailing zeros + while (tz) { + stbsp__int32 i; + stbsp__cb_buf_clamp(i, tz); + tz -= i; + while (i) { + if ((((stbsp__uintptr)bf) & 3) == 0) + break; + *bf++ = '0'; + --i; + } + while (i >= 4) { + *(stbsp__uint32 *)bf = 0x30303030; + bf += 4; + i -= 4; + } + while (i) { + *bf++ = '0'; + --i; + } + stbsp__chk_cb_buf(1); + } + + // copy tail if there is one + sn = tail + 1; + while (tail[0]) { + stbsp__int32 i; + stbsp__cb_buf_clamp(i, tail[0]); + tail[0] -= (char)i; + while (i) { + *bf++ = *sn++; + --i; + } + stbsp__chk_cb_buf(1); + } + + // handle the left justify + if (fl & STBSP__LEFTJUST) + if (fw > 0) { + while (fw) { + stbsp__int32 i; + stbsp__cb_buf_clamp(i, fw); + fw -= i; + while (i) { + if ((((stbsp__uintptr)bf) & 3) == 0) + break; + *bf++ = ' '; + --i; + } + while (i >= 4) { + *(stbsp__uint32 *)bf = 0x20202020; + bf += 4; + i -= 4; + } + while (i--) + *bf++ = ' '; + stbsp__chk_cb_buf(1); + } + } + break; + + default: // unknown, just copy code + s = num + STBSP__NUMSZ - 1; + *s = f[0]; + l = 1; + fw = fl = 0; + lead[0] = 0; + tail[0] = 0; + pr = 0; + dp = 0; + cs = 0; + goto scopy; + } + ++f; + } +endfmt: + + if (!callback) + *bf = 0; + else + stbsp__flush_cb(); + +done: + return tlen + (int)(bf - buf); +} + +// cleanup +#undef STBSP__LEFTJUST +#undef STBSP__LEADINGPLUS +#undef STBSP__LEADINGSPACE +#undef STBSP__LEADING_0X +#undef STBSP__LEADINGZERO +#undef STBSP__INTMAX +#undef STBSP__TRIPLET_COMMA +#undef STBSP__NEGATIVE +#undef STBSP__METRIC_SUFFIX +#undef STBSP__NUMSZ +#undef stbsp__chk_cb_bufL +#undef stbsp__chk_cb_buf +#undef stbsp__flush_cb +#undef stbsp__cb_buf_clamp + +// ============================================================================ +// wrapper functions + +STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(sprintf)(char *buf, char const *fmt, + ...) { + int result; + va_list va; + va_start(va, fmt); + result = STB_SPRINTF_DECORATE(vsprintfcb)(0, 0, buf, fmt, va); + va_end(va); + return result; +} + +typedef struct stbsp__context { + char *buf; + int count; + int length; + char tmp[STB_SPRINTF_MIN]; +} stbsp__context; + +static char *stbsp__clamp_callback(const char *buf, void *user, int len) { + stbsp__context *c = (stbsp__context *)user; + c->length += len; + + if (len > c->count) + len = c->count; + + if (len) { + if (buf != c->buf) { + const char *s, *se; + char *d; + d = c->buf; + s = buf; + se = buf + len; + do { + *d++ = *s++; + } while (s < se); + } + c->buf += len; + c->count -= len; + } + + if (c->count <= 0) + return c->tmp; + return (c->count >= STB_SPRINTF_MIN) + ? c->buf + : c->tmp; // go direct into buffer if you can +} + +static char *stbsp__count_clamp_callback(const char *buf, void *user, int len) { + stbsp__context *c = (stbsp__context *)user; + (void)sizeof(buf); + + c->length += len; + return c->tmp; // go direct into buffer if you can +} + +STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsnprintf)(char *buf, int count, + char const *fmt, + va_list va) { + stbsp__context c; + + if ((count == 0) && !buf) { + c.length = 0; + + STB_SPRINTF_DECORATE(vsprintfcb) + (stbsp__count_clamp_callback, &c, c.tmp, fmt, va); + } else { + int l; + + c.buf = buf; + c.count = count; + c.length = 0; + + STB_SPRINTF_DECORATE(vsprintfcb) + (stbsp__clamp_callback, &c, stbsp__clamp_callback(0, &c, 0), fmt, va); + + // zero-terminate + l = (int)(c.buf - buf); + if (l >= count) // should never be greater, only equal (or less) than count + l = count - 1; + buf[l] = 0; + } + + return c.length; +} + +STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(snprintf)(char *buf, int count, + char const *fmt, ...) { + int result; + va_list va; + va_start(va, fmt); + + result = STB_SPRINTF_DECORATE(vsnprintf)(buf, count, fmt, va); + va_end(va); + + return result; +} + +STBSP__PUBLICDEF int STB_SPRINTF_DECORATE(vsprintf)(char *buf, char const *fmt, + va_list va) { + return STB_SPRINTF_DECORATE(vsprintfcb)(0, 0, buf, fmt, va); +} + +// ======================================================================= +// low level float utility functions + +#ifndef STB_SPRINTF_NOFLOAT + +// copies d to bits w/ strict aliasing (this compiles to nothing on /Ox) +#define STBSP__COPYFP(dest, src) \ + { \ + int cn; \ + for (cn = 0; cn < 8; cn++) \ + ((char *)&dest)[cn] = ((char *)&src)[cn]; \ + } + +// get float info +static stbsp__int32 stbsp__real_to_parts(stbsp__int64 *bits, stbsp__int32 *expo, + double value) { + double d; + stbsp__int64 b = 0; + + // load value and round at the frac_digits + d = value; + + STBSP__COPYFP(b, d); + + *bits = b & ((((stbsp__uint64)1) << 52) - 1); + *expo = (stbsp__int32)(((b >> 52) & 2047) - 1023); + + return (stbsp__int32)((stbsp__uint64)b >> 63); +} + +static double const stbsp__bot[23] = { + 1e+000, 1e+001, 1e+002, 1e+003, 1e+004, 1e+005, 1e+006, 1e+007, + 1e+008, 1e+009, 1e+010, 1e+011, 1e+012, 1e+013, 1e+014, 1e+015, + 1e+016, 1e+017, 1e+018, 1e+019, 1e+020, 1e+021, 1e+022}; +static double const stbsp__negbot[22] = { + 1e-001, 1e-002, 1e-003, 1e-004, 1e-005, 1e-006, 1e-007, 1e-008, + 1e-009, 1e-010, 1e-011, 1e-012, 1e-013, 1e-014, 1e-015, 1e-016, + 1e-017, 1e-018, 1e-019, 1e-020, 1e-021, 1e-022}; +static double const stbsp__negboterr[22] = { + -5.551115123125783e-018, -2.0816681711721684e-019, + -2.0816681711721686e-020, -4.7921736023859299e-021, + -8.1803053914031305e-022, 4.5251888174113741e-023, + 4.5251888174113739e-024, -2.0922560830128471e-025, + -6.2281591457779853e-026, -3.6432197315497743e-027, + 6.0503030718060191e-028, 2.0113352370744385e-029, + -3.0373745563400371e-030, 1.1806906454401013e-032, + -7.7705399876661076e-032, 2.0902213275965398e-033, + -7.1542424054621921e-034, -7.1542424054621926e-035, + 2.4754073164739869e-036, 5.4846728545790429e-037, + 9.2462547772103625e-038, -4.8596774326570872e-039}; +static double const stbsp__top[13] = {1e+023, 1e+046, 1e+069, 1e+092, 1e+115, + 1e+138, 1e+161, 1e+184, 1e+207, 1e+230, + 1e+253, 1e+276, 1e+299}; +static double const stbsp__negtop[13] = {1e-023, 1e-046, 1e-069, 1e-092, 1e-115, + 1e-138, 1e-161, 1e-184, 1e-207, 1e-230, + 1e-253, 1e-276, 1e-299}; +static double const stbsp__toperr[13] = {8388608, + 6.8601809640529717e+028, + -7.253143638152921e+052, + -4.3377296974619174e+075, + -1.5559416129466825e+098, + -3.2841562489204913e+121, + -3.7745893248228135e+144, + -1.7356668416969134e+167, + -3.8893577551088374e+190, + -9.9566444326005119e+213, + 6.3641293062232429e+236, + -5.2069140800249813e+259, + -5.2504760255204387e+282}; +static double const stbsp__negtoperr[13] = { + 3.9565301985100693e-040, -2.299904345391321e-063, + 3.6506201437945798e-086, 1.1875228833981544e-109, + -5.0644902316928607e-132, -6.7156837247865426e-155, + -2.812077463003139e-178, -5.7778912386589953e-201, + 7.4997100559334532e-224, -4.6439668915134491e-247, + -6.3691100762962136e-270, -9.436808465446358e-293, + 8.0970921678014997e-317}; + +#if defined(_MSC_VER) && (_MSC_VER <= 1200) +static stbsp__uint64 const stbsp__powten[20] = {1, + 10, + 100, + 1000, + 10000, + 100000, + 1000000, + 10000000, + 100000000, + 1000000000, + 10000000000, + 100000000000, + 1000000000000, + 10000000000000, + 100000000000000, + 1000000000000000, + 10000000000000000, + 100000000000000000, + 1000000000000000000, + 10000000000000000000U}; +#define stbsp__tento19th ((stbsp__uint64)1000000000000000000) +#else +static stbsp__uint64 const stbsp__powten[20] = {1, + 10, + 100, + 1000, + 10000, + 100000, + 1000000, + 10000000, + 100000000, + 1000000000, + 10000000000ULL, + 100000000000ULL, + 1000000000000ULL, + 10000000000000ULL, + 100000000000000ULL, + 1000000000000000ULL, + 10000000000000000ULL, + 100000000000000000ULL, + 1000000000000000000ULL, + 10000000000000000000ULL}; +#define stbsp__tento19th (1000000000000000000ULL) +#endif + +#define stbsp__ddmulthi(oh, ol, xh, yh) \ + { \ + double ahi = 0, alo, bhi = 0, blo; \ + stbsp__int64 bt; \ + oh = xh * yh; \ + STBSP__COPYFP(bt, xh); \ + bt &= ((~(stbsp__uint64)0) << 27); \ + STBSP__COPYFP(ahi, bt); \ + alo = xh - ahi; \ + STBSP__COPYFP(bt, yh); \ + bt &= ((~(stbsp__uint64)0) << 27); \ + STBSP__COPYFP(bhi, bt); \ + blo = yh - bhi; \ + ol = ((ahi * bhi - oh) + ahi * blo + alo * bhi) + alo * blo; \ + } + +#define stbsp__ddtoS64(ob, xh, xl) \ + { \ + double ahi = 0, alo, vh, t; \ + ob = (stbsp__int64)xh; \ + vh = (double)ob; \ + ahi = (xh - vh); \ + t = (ahi - xh); \ + alo = (xh - (ahi - t)) - (vh + t); \ + ob += (stbsp__int64)(ahi + alo + xl); \ + } + +#define stbsp__ddrenorm(oh, ol) \ + { \ + double s; \ + s = oh + ol; \ + ol = ol - (s - oh); \ + oh = s; \ + } + +#define stbsp__ddmultlo(oh, ol, xh, xl, yh, yl) ol = ol + (xh * yl + xl * yh); + +#define stbsp__ddmultlos(oh, ol, xh, yl) ol = ol + (xh * yl); + +static void +stbsp__raise_to_power10(double *ohi, double *olo, double d, + stbsp__int32 power) // power can be -323 to +350 +{ + double ph, pl; + if ((power >= 0) && (power <= 22)) { + stbsp__ddmulthi(ph, pl, d, stbsp__bot[power]); + } else { + stbsp__int32 e, et, eb; + double p2h, p2l; + + e = power; + if (power < 0) + e = -e; + et = (e * 0x2c9) >> 14; /* %23 */ + if (et > 13) + et = 13; + eb = e - (et * 23); + + ph = d; + pl = 0.0; + if (power < 0) { + if (eb) { + --eb; + stbsp__ddmulthi(ph, pl, d, stbsp__negbot[eb]); + stbsp__ddmultlos(ph, pl, d, stbsp__negboterr[eb]); + } + if (et) { + stbsp__ddrenorm(ph, pl); + --et; + stbsp__ddmulthi(p2h, p2l, ph, stbsp__negtop[et]); + stbsp__ddmultlo(p2h, p2l, ph, pl, stbsp__negtop[et], + stbsp__negtoperr[et]); + ph = p2h; + pl = p2l; + } + } else { + if (eb) { + e = eb; + if (eb > 22) + eb = 22; + e -= eb; + stbsp__ddmulthi(ph, pl, d, stbsp__bot[eb]); + if (e) { + stbsp__ddrenorm(ph, pl); + stbsp__ddmulthi(p2h, p2l, ph, stbsp__bot[e]); + stbsp__ddmultlos(p2h, p2l, stbsp__bot[e], pl); + ph = p2h; + pl = p2l; + } + } + if (et) { + stbsp__ddrenorm(ph, pl); + --et; + stbsp__ddmulthi(p2h, p2l, ph, stbsp__top[et]); + stbsp__ddmultlo(p2h, p2l, ph, pl, stbsp__top[et], stbsp__toperr[et]); + ph = p2h; + pl = p2l; + } + } + } + stbsp__ddrenorm(ph, pl); + *ohi = ph; + *olo = pl; +} + +// given a float value, returns the significant bits in bits, and the position +// of the +// decimal point in decimal_pos. +/-INF and NAN are specified by special +// values returned in the decimal_pos parameter. +// frac_digits is absolute normally, but if you want from first significant +// digits (got %g and %e), or in 0x80000000 +static stbsp__int32 stbsp__real_to_str(char const **start, stbsp__uint32 *len, + char *out, stbsp__int32 *decimal_pos, + double value, + stbsp__uint32 frac_digits) { + double d; + stbsp__int64 bits = 0; + stbsp__int32 expo, e, ng, tens; + + d = value; + STBSP__COPYFP(bits, d); + expo = (stbsp__int32)((bits >> 52) & 2047); + ng = (stbsp__int32)((stbsp__uint64)bits >> 63); + if (ng) + d = -d; + + if (expo == 2047) // is nan or inf? + { + *start = (bits & ((((stbsp__uint64)1) << 52) - 1)) ? "NaN" : "Inf"; + *decimal_pos = STBSP__SPECIAL; + *len = 3; + return ng; + } + + if (expo == 0) // is zero or denormal + { + if (((stbsp__uint64)bits << 1) == 0) // do zero + { + *decimal_pos = 1; + *start = out; + out[0] = '0'; + *len = 1; + return ng; + } + // find the right expo for denormals + { + stbsp__int64 v = ((stbsp__uint64)1) << 51; + while ((bits & v) == 0) { + --expo; + v >>= 1; + } + } + } + + // find the decimal exponent as well as the decimal bits of the value + { + double ph, pl; + + // log10 estimate - very specifically tweaked to hit or undershoot by no + // more than 1 of log10 of all expos 1..2046 + tens = expo - 1023; + tens = (tens < 0) ? ((tens * 617) / 2048) : (((tens * 1233) / 4096) + 1); + + // move the significant bits into position and stick them into an int + stbsp__raise_to_power10(&ph, &pl, d, 18 - tens); + + // get full as much precision from double-double as possible + stbsp__ddtoS64(bits, ph, pl); + + // check if we undershot + if (((stbsp__uint64)bits) >= stbsp__tento19th) + ++tens; + } + + // now do the rounding in integer land + frac_digits = (frac_digits & 0x80000000) ? ((frac_digits & 0x7ffffff) + 1) + : (tens + frac_digits); + if ((frac_digits < 24)) { + stbsp__uint32 dg = 1; + if ((stbsp__uint64)bits >= stbsp__powten[9]) + dg = 10; + while ((stbsp__uint64)bits >= stbsp__powten[dg]) { + ++dg; + if (dg == 20) + goto noround; + } + if (frac_digits < dg) { + stbsp__uint64 r; + // add 0.5 at the right position and round + e = dg - frac_digits; + if ((stbsp__uint32)e >= 24) + goto noround; + r = stbsp__powten[e]; + bits = bits + (r / 2); + if ((stbsp__uint64)bits >= stbsp__powten[dg]) + ++tens; + bits /= r; + } + noround:; + } + + // kill long trailing runs of zeros + if (bits) { + stbsp__uint32 n; + for (;;) { + if (bits <= 0xffffffff) + break; + if (bits % 1000) + goto donez; + bits /= 1000; + } + n = (stbsp__uint32)bits; + while ((n % 1000) == 0) + n /= 1000; + bits = n; + donez:; + } + + // convert to string + out += 64; + e = 0; + for (;;) { + stbsp__uint32 n; + char *o = out - 8; + // do the conversion in chunks of U32s (avoid most 64-bit divides, worth it, + // constant denomiators be damned) + if (bits >= 100000000) { + n = (stbsp__uint32)(bits % 100000000); + bits /= 100000000; + } else { + n = (stbsp__uint32)bits; + bits = 0; + } + while (n) { + out -= 2; + *(stbsp__uint16 *)out = + *(stbsp__uint16 *)&stbsp__digitpair.pair[(n % 100) * 2]; + n /= 100; + e += 2; + } + if (bits == 0) { + if ((e) && (out[0] == '0')) { + ++out; + --e; + } + break; + } + while (out != o) { + *--out = '0'; + ++e; + } + } + + *decimal_pos = tens; + *start = out; + *len = e; + return ng; +} + +#undef stbsp__ddmulthi +#undef stbsp__ddrenorm +#undef stbsp__ddmultlo +#undef stbsp__ddmultlos +#undef STBSP__SPECIAL +#undef STBSP__COPYFP + +#endif // STB_SPRINTF_NOFLOAT + +// clean up +#undef stbsp__uint16 +#undef stbsp__uint32 +#undef stbsp__int32 +#undef stbsp__uint64 +#undef stbsp__int64 +#undef STBSP__UNALIGNED + +#endif // STB_SPRINTF_IMPLEMENTATION + +/* +------------------------------------------------------------------------------ +This software is available under 2 licenses -- choose whichever you prefer. +------------------------------------------------------------------------------ +ALTERNATIVE A - MIT License +Copyright (c) 2017 Sean Barrett +Permission is hereby granted, free of charge, to any person obtaining a copy of +this software and associated documentation files (the "Software"), to deal in +the Software without restriction, including without limitation the rights to +use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies +of the Software, and to permit persons to whom the Software is furnished to do +so, subject to the following conditions: +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +------------------------------------------------------------------------------ +ALTERNATIVE B - Public Domain (www.unlicense.org) +This is free and unencumbered software released into the public domain. +Anyone is free to copy, modify, publish, use, compile, sell, or distribute this +software, either in source code form or as a compiled binary, for any purpose, +commercial or non-commercial, and by any means. +In jurisdictions that recognize copyright laws, the author or authors of this +software dedicate any and all copyright interest in the software to the public +domain. We make this dedication for the benefit of the public at large and to +the detriment of our heirs and successors. We intend this dedication to be an +overt act of relinquishment in perpetuity of all present and future rights to +this software under copyright law. +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +------------------------------------------------------------------------------ +*/ diff --git a/src/os/os.c b/src/os/os.c index 00a0437..70fc4ae 100644 --- a/src/os/os.c +++ b/src/os/os.c @@ -173,7 +173,7 @@ fn void os_advance(os_iter_t *it) { it->name = s8_from_s16(it->arena, s16_make(data->cFileName, str16_len(data->cFileName))); char *separator = it->path.str[it->path.len - 1] == '/' ? "" : "/"; - it->rel = s8_printf(it->arena, "%S%s%S", it->path, separator, it->name); + it->rel = s8_printf(it->arena, "%.*s%s%.*s", s8_fmtspec(it->path), separator, s8_fmtspec(it->name)); it->abs = os_abs(it->arena, it->rel); it->is_valid = true; s8_normalize_path_unsafe(it->rel); @@ -196,7 +196,7 @@ fn os_iter_t *os_iter(ma_arena_t *arena, s8_t path) { it->is_valid = true; ma_temp_t scratch = ma_begin_scratch1(arena); - s8_t mod_path = s8_printf(scratch.arena, "%S\\*", path); + s8_t mod_path = s8_printf(scratch.arena, "%.*s\\*", s8_fmtspec(path)); s16_t mod_path16 = s16_from_s8(scratch.arena, mod_path); it->w32->handle = FindFirstFileW(mod_path16.str, &it->w32->data); @@ -257,7 +257,7 @@ fn s8_t os_exe_dir(ma_arena_t *arena) { ma_temp_t scratch = ma_begin_scratch1(arena); s8_t exe = os_exe(scratch.arena); s8_t path = s8_chop_last_slash(exe); - s8_t result = s8_printf(arena, "%S", path); + s8_t result = s8_printf(arena, "%.*s", s8_fmtspec(path)); ma_end_scratch(scratch); return result; } @@ -301,7 +301,7 @@ fn s8_t os_cwd(ma_arena_t *arena) { assert(wsize <= buffer_size); s8_t path = s8_from_s16(scratch.arena, s16_make(buffer, wsize)); s8_normalize_path_unsafe(path); - s8_t result = s8_printf(arena, "%S", path); + s8_t result = s8_printf(arena, "%.*s", s8_fmtspec(path)); ma_end_scratch(scratch); return result; } @@ -398,10 +398,10 @@ fn s8_t os_appdata(ma_arena_t *arena, s8_t name) { ma_temp_t scratch = ma_begin_scratch1(arena); s8_t tmp = s8_from_s16(scratch.arena, appdata_path); s8_normalize_path_unsafe(tmp); - s8_t path = s8_printf(arena, "%S/%S", tmp, name); + s8_t path = s8_printf(arena, "%.*s/%.*s", s8_fmtspec(tmp), s8_fmtspec(name)); os_mkdir_t mkdir_status = os_mkdir(path); if (mkdir_status != os_mkdir_success && mkdir_status != os_mkdir_file_exists) { - debugf("%s.os_mkdir failed with status: %d, for: %S", __FUNCTION__, mkdir_status, path); + debugf("%s.os_mkdir failed with status: %d, for: %.*s", __FUNCTION__, mkdir_status, s8_fmtspec(path)); path = s8_null; } @@ -611,7 +611,7 @@ fn void os_advance(os_iter_t *it) { it->name = s8_copy(it->arena, s8_from_char(file->d_name)); const char *separator = it->path.str[it->path.len - 1] == '/' ? "" : "/"; - it->rel = s8_printf(it->arena, "%S%s%s", it->path, separator, file->d_name); + it->rel = s8_printf(it->arena, "%.*s%s%s", s8_fmtspec(it->path), separator, file->d_name); it->abs = os_abs(it->arena, it->rel); it->is_valid = true; return; diff --git a/src/testing/testing_main.c b/src/testing/testing_main.c index 733fbdd..56df0b9 100644 --- a/src/testing/testing_main.c +++ b/src/testing/testing_main.c @@ -10,7 +10,6 @@ fn void os_test(void) { os_date_t local_time = os_local_time(); os_date_t universal_time = os_universal_time(); unused(universal_time); unused(local_time); - // debugf("OS local_time = %S | universal_time = %S", os_format_date(&tcx->temp, local_time), os_format_date(&tcx->temp, universal_time)); s8_t exe_dir = os_exe_dir(&tcx->temp); assert(exe_dir.str[exe_dir.len - 1] != '/'); @@ -84,12 +83,12 @@ fn void test_s8(void) { sb8_t *sb = &(sb8_t){arena}; s8_t memes = s8("memes"); - sb8_printf(sb, "%S", memes); + sb8_printf(sb, "%.*s", s8_fmtspec(memes)); assert(sb->first == sb->last); assert(sb->first->len == 5); assert(s8_are_equal(sb->first->string, memes)); - sb8_printf(sb, "%S", s8("things are going fine")); + sb8_printf(sb, "%s", "things are going fine"); s8_t string = sb8_merge(temp.arena, sb); assert(s8_are_equal(string, s8("memesthings are going fine"))); @@ -158,7 +157,7 @@ fn void test_s8(void) { } { - s8_t s = s8_printf(arena, "%d%Sv%s", 32, s8("|"), ">"); + s8_t s = s8_printf(arena, "%d%sv%s", 32, "|", ">"); assert(s8_are_equal(s, s8("32|v>"))); } @@ -174,6 +173,7 @@ fn void test_s8(void) { int main() { os_core_init(); + test_s8(); os_test(); debugf("Testing OK");