Half of day 38 complete.

core.h

@@ -1,7 +1,97 @@
 #ifndef CORE_H_SENTRY
 #define CORE_H_SENTRY
 
-/* ---- Types ---------------------------------------------------------- */
+/* ---- Environment Detection ------------------------------------------ */
+
+/* Architecture */
+
+#ifndef ARCHITECTURE_X64
+#define ARCHITECTURE_X64 0
+#endif
+
+#ifndef ARCHITECTURE_X86
+#define ARCHITECTURE_X86 0
+#endif
+
+#ifndef ARCHITECTURE_ARM64
+#define ARCHITECTURE_ARM64 0
+#endif
+
+#ifndef ARCHITECTURE_ARM32
+#define ARCHITECTURE_ARM32 0
+#endif
+
+#if defined(__x86_64__) || defined(__x86_64) || defined(__amd64__) || defined(__amd64)
+#undef ARCHITECTURE_X64
+#define ARCHITECTURE_X64 1
+#elif defined(i386) || defined(__i386) || defined(__i386__)
+#undef ARCHITECTURE_X86
+#define ARCHITECTURE_X86 1
+#elif defined(__aarch64__)
+#undef ARCHITECTURE_ARM64
+#define ARCHITECTURE_ARM64 1
+#elif defined(__arm__)
+#undef ARCHITECTURE_ARM32
+#define ARCHITECTURE_ARM32 1
+#else
+#error Unknown not architecture . . .
+#endif
+
+/* OS */
+
+#ifndef OS_WINDOWS
+#define OS_WINDOWS 0
+#endif
+
+#ifndef OS_MACOS
+#define OS_MACOS 0
+#endif
+
+#ifndef OS_LINUX
+#define OS_LINUX 0
+#endif
+
+#if defined(_WIN32)
+#undef OS_WINDOWS
+#define OS_WINDOWS 1
+#elif defined(__APPLE__) && defined(__MACH__)
+#undef OS_MACOS
+#define OS_MACOS 1
+#elif defined(__linux__)
+#undef OS_LINUX
+#define OS_LINUX 1
+#else
+#error Unknown Operating System . . .
+#endif
+
+/* Compiler */
+
+#ifndef COMPILER_MSVC
+#define COMPILER_MSVC 0
+#endif
+
+#ifndef COMPILER_CLANG
+#define COMPILER_CLANG 0
+#endif
+
+#ifndef COMPILER_GCC
+#define COMPILER_GCC 0
+#endif
+
+#if _MSC_VER
+#undef COMPILER_MSVC
+#define COMPILER_MSVC 1
+#elif __clang__
+#undef COMPILER_CLANG
+#define COMPILER_CLANG 1
+#elif __GNUC__
+#undef COMPILER_GCC
+#define COMPILER_GCC 1
+#else
+#error Unknown compiler . . .
+#endif
+
+/* ---- Switches ------------------------------------------------------- */
 
 #ifndef BUILD_DEBUG
 #define BUILD_DEBUG 1
@@ -11,6 +101,8 @@
 #define BUILD_INTERNAL 1
 #endif
 
+/* ---- Types ---------------------------------------------------------- */
+
 #ifndef TRUE
 #define TRUE 1
 #endif
@@ -51,7 +143,7 @@ typedef double             F64;
 
 /* ---- Asserts -------------------------------------------------------- */
 
-#define TRAP() __builtin_trap()
+#define TRAP() __builtin_trap() // TODO: GCC and CLANG thing; not supported on MSVC.
 
 #define ASSERT_ALWAYS(x) do { if(!(x)) { TRAP(); } } while(0)
 #if BUILD_DEBUG
@@ -81,6 +173,11 @@ typedef double             F64;
 #define MAX_U16 (U16)0xffff
 #define MAX_U8   (U8)0xff
 
+#define MIN_U64 (U64)0x0
+#define MIN_U32 (U32)0x0
+#define MIN_U16 (U16)0x0
+#define MIN_U8   (U8)0x0
+
 #define MAX_S64 (S64)0x7fffffffffffffff
 #define MAX_S32 (S32)0x7fffffff
 #define MAX_S16 (S16)0x7fff