SDL_types.h
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2006 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
/* General data types used by the SDL library */
#ifndef _SDL_types_h
#define _SDL_types_h
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#include <sys/types.h>
#ifdef _MSC_VER
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/* FIXME!! */
typedef unsigned int size_t;
typedef size_t uintptr_t;
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#endif
/* The number of elements in an array */
#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
#define SDL_TABLESIZE(table) SDL_arraysize(table)
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/* Basic data types */
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typedef enum SDL_bool {
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SDL_FALSE = 0,
SDL_TRUE = 1
} SDL_bool;
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#ifdef H_MMBASIC /* mmbasic.h (Tru64 MME) */
/* Some of the basic types are already defined in mmbasic.h */
typedef signed char Sint8;
typedef signed short Sint16;
typedef signed int Sint32;
#else
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typedef unsigned char Uint8;
typedef signed char Sint8;
typedef unsigned short Uint16;
typedef signed short Sint16;
typedef unsigned int Uint32;
typedef signed int Sint32;
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/* Figure out how to support 64-bit datatypes */
#if !defined(__STRICT_ANSI__)
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#ifdef __osf__ /* Tru64 */
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#define SDL_HAS_64BIT_TYPE long
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#elif defined(__GNUC__) || defined(__MWERKS__) || defined(__SUNPRO_C) || defined(__DECC) || defined(__WATCOMC__)
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#define SDL_HAS_64BIT_TYPE long long
#elif defined(_MSC_VER) /* VC++ */
#define SDL_HAS_64BIT_TYPE __int64
#endif
#endif /* !__STRICT_ANSI__ */
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/* The 64-bit type isn't available on EPOC/Symbian OS */
#ifdef __SYMBIAN32__
#undef SDL_HAS_64BIT_TYPE
#endif
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/* The 64-bit datatype isn't supported on all platforms */
#ifdef SDL_HAS_64BIT_TYPE
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#ifndef H_MMBASIC
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typedef unsigned SDL_HAS_64BIT_TYPE Uint64;
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typedef SDL_HAS_64BIT_TYPE Sint64;
#else
/* This is really just a hack to prevent the compiler from complaining */
typedef struct {
Uint32 hi;
Uint32 lo;
} Uint64, Sint64;
#endif
/* Make sure the types really have the right sizes */
#define SDL_COMPILE_TIME_ASSERT(name, x) \
typedef int SDL_dummy_ ## name[(x) * 2 - 1]
SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
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/* Check to make sure enums are the size of ints, for structure packing.
For both Watcom C/C++ and Borland C/C++ the compiler option that makes
enums having the size of an int must be enabled.
This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
*/
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/* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
#ifdef __MWERKS__
#pragma enumsalwaysint on
#endif
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typedef enum {
DUMMY_ENUM_VALUE
} SDL_DUMMY_ENUM;
SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
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#endif