Restructuring

c3_big_int.h

@@ -0,0 +1,67 @@
+struct Token;
+struct BigInt
+{
+  unsigned digit_count;
+  bool is_negative;
+  union {
+    uint64_t digit;
+    uint64_t *digits;
+  };
+};
+
+#include <inttypes.h>
+enum CmpRes
+{
+  CMP_LT,
+  CMP_GT,
+  CMP_EQ,
+};
+
+#define count_bigint_alloc() (bigint_allocator != thread_ctx.scratch ? bigint_allocation_count++ : 0)
+#define malloc_arena(x) (count_bigint_alloc(), exp_alloc(bigint_allocator, x, AF_ZeroMemory))
+#define ALLOC_DIGITS(_digits) (uint64_t *)((_digits) ? malloc_arena(sizeof(uint64_t) * (_digits)) : NULL)
+#define FATAL_ERROR(x) compiler_error(0, x)
+
+function void compiler_error(Token *token, const char *str, ...);
+const char *bigint_to_error_string(Allocator *allocator, const BigInt *bigint, uint64_t base);
+void bigint_init_unsigned(BigInt *big_int, uint64_t value);
+void bigint_init_signed(BigInt *big_int, int64_t value);
+void bigint_init_bigint(BigInt *dest, const BigInt *src);
+void bigint_init_data(BigInt *dest, const uint64_t *digits, unsigned int digit_count, bool is_negative);
+void bigint_negate(BigInt *dest, const BigInt *source);
+size_t bigint_clz(const BigInt *big_int, size_t bit_count);
+size_t bigint_ctz(const BigInt *big_int, size_t bit_count);
+bool bigint_fits_in_bits(const BigInt *big_int, size_t bit_count, bool is_signed);
+void bigint_write_twos_complement(const BigInt *big_int, uint8_t *buf, size_t bit_count, bool is_big_endian);
+void bigint_read_twos_complement(BigInt *dest, const uint8_t *buf, size_t bit_count, bool is_big_endian, bool is_signed);
+void bigint_add(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_add_wrap(BigInt *dest, const BigInt *op1, const BigInt *op2, size_t bit_count, bool is_signed);
+void bigint_sub(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_sub_wrap(BigInt *dest, const BigInt *op1, const BigInt *op2, size_t bit_count, bool is_signed);
+void bigint_mul(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_mul_wrap(BigInt *dest, const BigInt *op1, const BigInt *op2, size_t bit_count, bool is_signed);
+void bigint_rem(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_mod(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_shl(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_shl_int(BigInt *dest, const BigInt *op1, uint64_t shift);
+void bigint_shl_trunc(BigInt *dest, const BigInt *op1, const BigInt *op2, size_t bit_count, bool is_signed);
+void bigint_shr(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_div_floor(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_or(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_and(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_xor(BigInt *dest, const BigInt *op1, const BigInt *op2);
+void bigint_negate_wrap(BigInt *dest, const BigInt *op, size_t bit_count);
+void bigint_not(BigInt *dest, const BigInt *op, size_t bit_count, bool is_signed);
+bool bigint_eql(BigInt a, BigInt b);
+CmpRes bigint_cmp(const BigInt *op1, const BigInt *op2);
+CmpRes bigint_cmp_zero(const BigInt *op);
+uint32_t bigint_hash(BigInt x);
+void bigint_print(BigInt *bigint, uint64_t base);
+void bigint_fprint(FILE *file, BigInt *bigint, uint64_t base);
+uint64_t bigint_as_unsigned(const BigInt *bigint);
+int64_t bigint_as_signed(const BigInt *bigint);
+double bigint_as_float(const BigInt *bigint);
+void bigint_truncate(BigInt *dst, const BigInt *op, size_t bit_count, bool is_signed);
+void bigint_incr(BigInt *x);
+size_t bigint_popcount_signed(const BigInt *bi, size_t bit_count);
+size_t bigint_popcount_unsigned(const BigInt *big_int);