diff options
Diffstat (limited to 'dependencies/include/SDL/begin_code.h')
| -rw-r--r-- | dependencies/include/SDL/begin_code.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/dependencies/include/SDL/begin_code.h b/dependencies/include/SDL/begin_code.h new file mode 100644 index 0000000..b3e69e8 --- /dev/null +++ b/dependencies/include/SDL/begin_code.h @@ -0,0 +1,187 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +/** + * \file begin_code.h + * + * This file sets things up for C dynamic library function definitions, + * static inlined functions, and structures aligned at 4-byte alignment. + * If you don't like ugly C preprocessor code, don't look at this file. :) + */ + +/* This shouldn't be nested -- included it around code only. */ +#ifdef _begin_code_h +#error Nested inclusion of begin_code.h +#endif +#define _begin_code_h + +#ifndef SDL_DEPRECATED +# if defined(__GNUC__) && (__GNUC__ >= 4) /* technically, this arrived in gcc 3.1, but oh well. */ +# define SDL_DEPRECATED __attribute__((deprecated)) +# else +# define SDL_DEPRECATED +# endif +#endif + +#ifndef SDL_UNUSED +# ifdef __GNUC__ +# define SDL_UNUSED __attribute__((unused)) +# else +# define SDL_UNUSED +# endif +#endif + +/* Some compilers use a special export keyword */ +#ifndef DECLSPEC +# if defined(__WIN32__) || defined(__WINRT__) || defined(__CYGWIN__) || defined(__GDK__) +# ifdef DLL_EXPORT +# define DECLSPEC __declspec(dllexport) +# else +# define DECLSPEC +# endif +# elif defined(__OS2__) +# ifdef BUILD_SDL +# define DECLSPEC __declspec(dllexport) +# else +# define DECLSPEC +# endif +# else +# if defined(__GNUC__) && __GNUC__ >= 4 +# define DECLSPEC __attribute__ ((visibility("default"))) +# else +# define DECLSPEC +# endif +# endif +#endif + +/* By default SDL uses the C calling convention */ +#ifndef SDLCALL +#if (defined(__WIN32__) || defined(__WINRT__) || defined(__GDK__)) && !defined(__GNUC__) +#define SDLCALL __cdecl +#elif defined(__OS2__) || defined(__EMX__) +#define SDLCALL _System +# if defined (__GNUC__) && !defined(_System) +# define _System /* for old EMX/GCC compat. */ +# endif +#else +#define SDLCALL +#endif +#endif /* SDLCALL */ + +/* Removed DECLSPEC on Symbian OS because SDL cannot be a DLL in EPOC */ +#ifdef __SYMBIAN32__ +#undef DECLSPEC +#define DECLSPEC +#endif /* __SYMBIAN32__ */ + +/* Force structure packing at 4 byte alignment. + This is necessary if the header is included in code which has structure + packing set to an alternate value, say for loading structures from disk. + The packing is reset to the previous value in close_code.h + */ +#if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__) +#ifdef _MSC_VER +#pragma warning(disable: 4103) +#endif +#ifdef __clang__ +#pragma clang diagnostic ignored "-Wpragma-pack" +#endif +#ifdef __BORLANDC__ +#pragma nopackwarning +#endif +#ifdef _WIN64 +/* Use 8-byte alignment on 64-bit architectures, so pointers are aligned */ +#pragma pack(push,8) +#else +#pragma pack(push,4) +#endif +#endif /* Compiler needs structure packing set */ + +#ifndef SDL_INLINE +#if defined(__GNUC__) +#define SDL_INLINE __inline__ +#elif defined(_MSC_VER) || defined(__BORLANDC__) || \ + defined(__DMC__) || defined(__SC__) || \ + defined(__WATCOMC__) || defined(__LCC__) || \ + defined(__DECC) || defined(__CC_ARM) +#define SDL_INLINE __inline +#ifndef __inline__ +#define __inline__ __inline +#endif +#else +#define SDL_INLINE inline +#ifndef __inline__ +#define __inline__ inline +#endif +#endif +#endif /* SDL_INLINE not defined */ + +#ifndef SDL_FORCE_INLINE +#if defined(_MSC_VER) +#define SDL_FORCE_INLINE __forceinline +#elif ( (defined(__GNUC__) && (__GNUC__ >= 4)) || defined(__clang__) ) +#define SDL_FORCE_INLINE __attribute__((always_inline)) static __inline__ +#else +#define SDL_FORCE_INLINE static SDL_INLINE +#endif +#endif /* SDL_FORCE_INLINE not defined */ + +#ifndef SDL_NORETURN +#if defined(__GNUC__) +#define SDL_NORETURN __attribute__((noreturn)) +#elif defined(_MSC_VER) +#define SDL_NORETURN __declspec(noreturn) +#else +#define SDL_NORETURN +#endif +#endif /* SDL_NORETURN not defined */ + +/* Apparently this is needed by several Windows compilers */ +#if !defined(__MACH__) +#ifndef NULL +#ifdef __cplusplus +#define NULL 0 +#else +#define NULL ((void *)0) +#endif +#endif /* NULL */ +#endif /* ! Mac OS X - breaks precompiled headers */ + +#ifndef SDL_FALLTHROUGH +#if (defined(__cplusplus) && __cplusplus >= 201703L) || \ + (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202000L) +#define SDL_FALLTHROUGH [[fallthrough]] +#else +#if defined(__has_attribute) +#define _HAS_FALLTHROUGH __has_attribute(__fallthrough__) +#else +#define _HAS_FALLTHROUGH 0 +#endif /* __has_attribute */ +#if _HAS_FALLTHROUGH && \ + ((defined(__GNUC__) && __GNUC__ >= 7) || \ + (defined(__clang_major__) && __clang_major__ >= 10)) +#define SDL_FALLTHROUGH __attribute__((__fallthrough__)) +#else +#define SDL_FALLTHROUGH do {} while (0) /* fallthrough */ +#endif /* _HAS_FALLTHROUGH */ +#undef _HAS_FALLTHROUGH +#endif /* C++17 or C2x */ +#endif /* SDL_FALLTHROUGH not defined */ |