Add examples, update README

examples/language_basics.kl

@@ -1,11 +1,30 @@
-
 main :: (): int
   // Language has a bunch of standard builtin types:
-  // Signed integer types = S64, S32, S16, S8, int
+  // Signed integer types
+  s64val: S64 = 0
+  s32val: S32 = 0
+  s16val: S16 = 0
+  s8val : S8  = 0
+  intval: int = 0
+
   // Unsigned integer types = U64, U32, U16, U8,
+  u64val: U64 = 0
+  u32val: U32 = 0
+  u16val: U16 = 0
+  u8val : U8  = 0
+
   // Floating point types = F64, F32
+  f64val: F64 = 0
+  f32val: F32 = 0
+
   // String type = String
-  // Character type for compatibility with C = char
+  string_val: String = "String type"
+  cstring_val: *char = "CString type"
+
+  assert(s64val == 0 && s32val == 0 && s16val == 0 && s8val == 0 && intval == 0 && u64val == 0 && u32val == 0 && u16val == 0 && u8val == 0 && f64val == 0 && f32val == 0)
+  assert(string_val[0]  == 'S) //'
+  // @todo: Fix error here !!
+  // assert(cstring_val[0] == 'C) //'
 
   // This is how we can assign variables
   // There is no need for prefixes, compiler figures
@@ -29,7 +48,7 @@ main :: (): int
 
   // There are also constant bindings in the language.
   // You can bind all sorts of constants to names this way.
-  INT_VALUE :: 10
+  INT_VALUE   :: 10
   FLOAT_VALUE :: 124.125
 
   // For constants we can mix and match different types
@@ -38,9 +57,10 @@ main :: (): int
   // When it comes to runtime variables it's a bit different
   // To do this we need a cast
   combining_types := this_is_s64_by_default->F64 + this_is_f64_by_default
-  combining_s64_and_s32 := signed_variable->S64 + this_is_s64_by_default
-  combining_unsigned_with_signed := unsigned_variable->F64 + combining_types
 
-  // Silence unused variable warning
-  assert(combining_s64_and_s32->F64 + combining_unsigned_with_signed > 0)
 
+  assert(signed_variable == 10 && unsigned_variable == 10)
+  assert(INT_VALUE == 10)
+  assert(FLOAT_VALUE == 124.125)
+  assert(this_is_f64_by_default == 15.1255)
+  assert(combining_types == 15.1255 + 20)