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620 lines
16 KiB
620 lines
16 KiB
/* |
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SDL - Simple DirectMedia Layer |
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Copyright (C) 1997-2009 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, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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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 |
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License along with this library; if not, write to the Free Software |
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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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*/ |
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/** @file SDL_stdinc.h |
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* This is a general header that includes C language support |
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*/ |
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#ifndef _SDL_stdinc_h |
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#define _SDL_stdinc_h |
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#include "SDL_config.h" |
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#ifdef HAVE_SYS_TYPES_H |
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#include <sys/types.h> |
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#endif |
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#ifdef HAVE_STDIO_H |
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#include <stdio.h> |
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#endif |
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#if defined(STDC_HEADERS) |
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# include <stdlib.h> |
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# include <stddef.h> |
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# include <stdarg.h> |
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#else |
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# if defined(HAVE_STDLIB_H) |
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# include <stdlib.h> |
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# elif defined(HAVE_MALLOC_H) |
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# include <malloc.h> |
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# endif |
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# if defined(HAVE_STDDEF_H) |
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# include <stddef.h> |
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# endif |
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# if defined(HAVE_STDARG_H) |
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# include <stdarg.h> |
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# endif |
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#endif |
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#ifdef HAVE_STRING_H |
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# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H) |
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# include <memory.h> |
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# endif |
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# include <string.h> |
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#endif |
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#ifdef HAVE_STRINGS_H |
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# include <strings.h> |
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#endif |
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#if defined(HAVE_INTTYPES_H) |
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# include <inttypes.h> |
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#elif defined(HAVE_STDINT_H) |
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# include <stdint.h> |
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#endif |
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#ifdef HAVE_CTYPE_H |
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# include <ctype.h> |
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#endif |
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#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H) |
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# include <iconv.h> |
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#endif |
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/** The number of elements in an array */ |
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#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0])) |
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#define SDL_TABLESIZE(table) SDL_arraysize(table) |
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/* Use proper C++ casts when compiled as C++ to be compatible with the option |
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-Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above. */ |
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#ifdef __cplusplus |
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#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression) |
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#define SDL_static_cast(type, expression) static_cast<type>(expression) |
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#else |
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#define SDL_reinterpret_cast(type, expression) ((type)(expression)) |
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#define SDL_static_cast(type, expression) ((type)(expression)) |
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#endif |
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/** @name Basic data types */ |
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/*@{*/ |
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typedef enum { |
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SDL_FALSE = 0, |
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SDL_TRUE = 1 |
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} SDL_bool; |
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typedef int8_t Sint8; |
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typedef uint8_t Uint8; |
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typedef int16_t Sint16; |
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typedef uint16_t Uint16; |
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typedef int32_t Sint32; |
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typedef uint32_t Uint32; |
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#ifdef SDL_HAS_64BIT_TYPE |
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typedef int64_t Sint64; |
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#ifndef SYMBIAN32_GCCE |
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typedef uint64_t Uint64; |
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#endif |
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#else |
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/* This is really just a hack to prevent the compiler from complaining */ |
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typedef struct { |
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Uint32 hi; |
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Uint32 lo; |
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} Uint64, Sint64; |
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#endif |
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/*@}*/ |
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/** @name Make sure the types really have the right sizes */ |
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/*@{*/ |
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#define SDL_COMPILE_TIME_ASSERT(name, x) \ |
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typedef int SDL_dummy_ ## name[(x) * 2 - 1] |
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SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1); |
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SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1); |
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SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2); |
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SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2); |
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SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4); |
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SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4); |
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SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8); |
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SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8); |
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/*@}*/ |
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/** @name Enum Size Check |
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* Check to make sure enums are the size of ints, for structure packing. |
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* For both Watcom C/C++ and Borland C/C++ the compiler option that makes |
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* enums having the size of an int must be enabled. |
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* This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11). |
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*/ |
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/* Enable enums always int in CodeWarrior (for MPW use "-enum int") */ |
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#ifdef __MWERKS__ |
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#pragma enumsalwaysint on |
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#endif |
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typedef enum { |
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DUMMY_ENUM_VALUE |
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} SDL_DUMMY_ENUM; |
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#ifndef __NDS__ |
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SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int)); |
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#endif |
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/*@}*/ |
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#include "begin_code.h" |
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/* Set up for C function definitions, even when using C++ */ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#ifdef HAVE_MALLOC |
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#define SDL_malloc malloc |
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#else |
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extern DECLSPEC void * SDLCALL SDL_malloc(size_t size); |
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#endif |
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#ifdef HAVE_CALLOC |
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#define SDL_calloc calloc |
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#else |
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extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size); |
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#endif |
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#ifdef HAVE_REALLOC |
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#define SDL_realloc realloc |
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#else |
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extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size); |
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#endif |
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#ifdef HAVE_FREE |
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#define SDL_free free |
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#else |
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extern DECLSPEC void SDLCALL SDL_free(void *mem); |
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#endif |
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#if defined(HAVE_ALLOCA) && !defined(alloca) |
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# if defined(HAVE_ALLOCA_H) |
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# include <alloca.h> |
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# elif defined(__GNUC__) |
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# define alloca __builtin_alloca |
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# elif defined(_MSC_VER) |
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# include <malloc.h> |
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# define alloca _alloca |
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# elif defined(__WATCOMC__) |
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# include <malloc.h> |
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# elif defined(__BORLANDC__) |
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# include <malloc.h> |
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# elif defined(__DMC__) |
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# include <stdlib.h> |
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# elif defined(__AIX__) |
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#pragma alloca |
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# elif defined(__MRC__) |
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void *alloca (unsigned); |
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# else |
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char *alloca (); |
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# endif |
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#endif |
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#ifdef HAVE_ALLOCA |
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#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count)) |
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#define SDL_stack_free(data) |
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#else |
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#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count)) |
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#define SDL_stack_free(data) SDL_free(data) |
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#endif |
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#ifdef HAVE_GETENV |
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#define SDL_getenv getenv |
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#else |
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extern DECLSPEC char * SDLCALL SDL_getenv(const char *name); |
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#endif |
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#ifdef HAVE_PUTENV |
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#define SDL_putenv putenv |
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#else |
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extern DECLSPEC int SDLCALL SDL_putenv(const char *variable); |
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#endif |
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#ifdef HAVE_QSORT |
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#define SDL_qsort qsort |
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#else |
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extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, |
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int (*compare)(const void *, const void *)); |
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#endif |
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#ifdef HAVE_ABS |
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#define SDL_abs abs |
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#else |
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#define SDL_abs(X) ((X) < 0 ? -(X) : (X)) |
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#endif |
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#define SDL_min(x, y) (((x) < (y)) ? (x) : (y)) |
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#define SDL_max(x, y) (((x) > (y)) ? (x) : (y)) |
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#ifdef HAVE_CTYPE_H |
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#define SDL_isdigit(X) isdigit(X) |
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#define SDL_isspace(X) isspace(X) |
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#define SDL_toupper(X) toupper(X) |
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#define SDL_tolower(X) tolower(X) |
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#else |
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#define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9')) |
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#define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n')) |
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#define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X)) |
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#define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X)) |
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#endif |
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#ifdef HAVE_MEMSET |
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#define SDL_memset memset |
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#else |
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extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len); |
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#endif |
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#if defined(__GNUC__) && defined(i386) |
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#define SDL_memset4(dst, val, len) \ |
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do { \ |
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int u0, u1, u2; \ |
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__asm__ __volatile__ ( \ |
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"cld\n\t" \ |
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"rep ; stosl\n\t" \ |
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: "=&D" (u0), "=&a" (u1), "=&c" (u2) \ |
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: "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, len)) \ |
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: "memory" ); \ |
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} while(0) |
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#endif |
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#ifndef SDL_memset4 |
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#define SDL_memset4(dst, val, len) \ |
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do { \ |
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unsigned _count = (len); \ |
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unsigned _n = (_count + 3) / 4; \ |
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Uint32 *_p = SDL_static_cast(Uint32 *, dst); \ |
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Uint32 _val = (val); \ |
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if (len == 0) break; \ |
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switch (_count % 4) { \ |
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case 0: do { *_p++ = _val; \ |
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case 3: *_p++ = _val; \ |
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case 2: *_p++ = _val; \ |
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case 1: *_p++ = _val; \ |
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} while ( --_n ); \ |
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} \ |
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} while(0) |
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#endif |
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/* We can count on memcpy existing on Mac OS X and being well-tuned. */ |
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#if defined(__MACH__) && defined(__APPLE__) |
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#define SDL_memcpy(dst, src, len) memcpy(dst, src, len) |
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#elif defined(__GNUC__) && defined(i386) |
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#define SDL_memcpy(dst, src, len) \ |
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do { \ |
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int u0, u1, u2; \ |
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__asm__ __volatile__ ( \ |
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"cld\n\t" \ |
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"rep ; movsl\n\t" \ |
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"testb $2,%b4\n\t" \ |
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"je 1f\n\t" \ |
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"movsw\n" \ |
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"1:\ttestb $1,%b4\n\t" \ |
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"je 2f\n\t" \ |
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"movsb\n" \ |
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"2:" \ |
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: "=&c" (u0), "=&D" (u1), "=&S" (u2) \ |
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: "0" (SDL_static_cast(unsigned, len)/4), "q" (len), "1" (dst),"2" (src) \ |
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: "memory" ); \ |
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} while(0) |
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#endif |
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#ifndef SDL_memcpy |
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#ifdef HAVE_MEMCPY |
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#define SDL_memcpy memcpy |
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#elif defined(HAVE_BCOPY) |
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#define SDL_memcpy(d, s, n) bcopy((s), (d), (n)) |
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#else |
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extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len); |
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#endif |
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#endif |
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/* We can count on memcpy existing on Mac OS X and being well-tuned. */ |
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#if defined(__MACH__) && defined(__APPLE__) |
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#define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4) |
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#elif defined(__GNUC__) && defined(i386) |
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#define SDL_memcpy4(dst, src, len) \ |
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do { \ |
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int ecx, edi, esi; \ |
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__asm__ __volatile__ ( \ |
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"cld\n\t" \ |
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"rep ; movsl" \ |
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: "=&c" (ecx), "=&D" (edi), "=&S" (esi) \ |
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: "0" (SDL_static_cast(unsigned, len)), "1" (dst), "2" (src) \ |
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: "memory" ); \ |
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} while(0) |
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#endif |
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#ifndef SDL_memcpy4 |
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#define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2) |
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#endif |
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#if defined(__GNUC__) && defined(i386) |
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#define SDL_revcpy(dst, src, len) \ |
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do { \ |
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int u0, u1, u2; \ |
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char *dstp = SDL_static_cast(char *, dst); \ |
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char *srcp = SDL_static_cast(char *, src); \ |
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int n = (len); \ |
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if ( n >= 4 ) { \ |
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__asm__ __volatile__ ( \ |
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"std\n\t" \ |
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"rep ; movsl\n\t" \ |
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"cld\n\t" \ |
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: "=&c" (u0), "=&D" (u1), "=&S" (u2) \ |
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: "0" (n >> 2), \ |
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"1" (dstp+(n-4)), "2" (srcp+(n-4)) \ |
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: "memory" ); \ |
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} \ |
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switch (n & 3) { \ |
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case 3: dstp[2] = srcp[2]; \ |
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case 2: dstp[1] = srcp[1]; \ |
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case 1: dstp[0] = srcp[0]; \ |
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break; \ |
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default: \ |
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break; \ |
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} \ |
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} while(0) |
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#endif |
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#ifndef SDL_revcpy |
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extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len); |
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#endif |
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#ifdef HAVE_MEMMOVE |
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#define SDL_memmove memmove |
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#elif defined(HAVE_BCOPY) |
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#define SDL_memmove(d, s, n) bcopy((s), (d), (n)) |
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#else |
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#define SDL_memmove(dst, src, len) \ |
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do { \ |
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if ( dst < src ) { \ |
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SDL_memcpy(dst, src, len); \ |
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} else { \ |
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SDL_revcpy(dst, src, len); \ |
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} \ |
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} while(0) |
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#endif |
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#ifdef HAVE_MEMCMP |
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#define SDL_memcmp memcmp |
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#else |
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extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len); |
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#endif |
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#ifdef HAVE_STRLEN |
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#define SDL_strlen strlen |
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#else |
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extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string); |
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#endif |
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#ifdef HAVE_STRLCPY |
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#define SDL_strlcpy strlcpy |
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#else |
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extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen); |
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#endif |
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#ifdef HAVE_STRLCAT |
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#define SDL_strlcat strlcat |
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#else |
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extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen); |
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#endif |
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#ifdef HAVE_STRDUP |
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#define SDL_strdup strdup |
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#else |
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extern DECLSPEC char * SDLCALL SDL_strdup(const char *string); |
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#endif |
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#ifdef HAVE__STRREV |
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#define SDL_strrev _strrev |
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#else |
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extern DECLSPEC char * SDLCALL SDL_strrev(char *string); |
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#endif |
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#ifdef HAVE__STRUPR |
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#define SDL_strupr _strupr |
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#else |
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extern DECLSPEC char * SDLCALL SDL_strupr(char *string); |
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#endif |
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#ifdef HAVE__STRLWR |
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#define SDL_strlwr _strlwr |
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#else |
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extern DECLSPEC char * SDLCALL SDL_strlwr(char *string); |
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#endif |
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#ifdef HAVE_STRCHR |
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#define SDL_strchr strchr |
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#elif defined(HAVE_INDEX) |
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#define SDL_strchr index |
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#else |
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extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c); |
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#endif |
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#ifdef HAVE_STRRCHR |
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#define SDL_strrchr strrchr |
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#elif defined(HAVE_RINDEX) |
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#define SDL_strrchr rindex |
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#else |
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extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c); |
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#endif |
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#ifdef HAVE_STRSTR |
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#define SDL_strstr strstr |
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#else |
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extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle); |
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#endif |
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#ifdef HAVE_ITOA |
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#define SDL_itoa itoa |
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#else |
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#define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix) |
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#endif |
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#ifdef HAVE__LTOA |
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#define SDL_ltoa _ltoa |
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#else |
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extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix); |
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#endif |
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#ifdef HAVE__UITOA |
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#define SDL_uitoa _uitoa |
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#else |
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#define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix) |
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#endif |
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#ifdef HAVE__ULTOA |
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#define SDL_ultoa _ultoa |
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#else |
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extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix); |
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#endif |
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#ifdef HAVE_STRTOL |
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#define SDL_strtol strtol |
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#else |
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extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base); |
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#endif |
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#ifdef HAVE_STRTOUL |
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#define SDL_strtoul strtoul |
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#else |
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extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base); |
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#endif |
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#ifdef SDL_HAS_64BIT_TYPE |
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#ifdef HAVE__I64TOA |
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#define SDL_lltoa _i64toa |
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#else |
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extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix); |
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#endif |
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#ifdef HAVE__UI64TOA |
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#define SDL_ulltoa _ui64toa |
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#else |
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extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix); |
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#endif |
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#ifdef HAVE_STRTOLL |
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#define SDL_strtoll strtoll |
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#else |
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extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base); |
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#endif |
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#ifdef HAVE_STRTOULL |
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#define SDL_strtoull strtoull |
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#else |
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extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base); |
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#endif |
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#endif /* SDL_HAS_64BIT_TYPE */ |
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#ifdef HAVE_STRTOD |
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#define SDL_strtod strtod |
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#else |
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extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp); |
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#endif |
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#ifdef HAVE_ATOI |
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#define SDL_atoi atoi |
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#else |
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#define SDL_atoi(X) SDL_strtol(X, NULL, 0) |
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#endif |
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#ifdef HAVE_ATOF |
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#define SDL_atof atof |
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#else |
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#define SDL_atof(X) SDL_strtod(X, NULL) |
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#endif |
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#ifdef HAVE_STRCMP |
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#define SDL_strcmp strcmp |
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#else |
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extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2); |
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#endif |
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#ifdef HAVE_STRNCMP |
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#define SDL_strncmp strncmp |
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#else |
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extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen); |
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#endif |
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#ifdef HAVE_STRCASECMP |
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#define SDL_strcasecmp strcasecmp |
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#elif defined(HAVE__STRICMP) |
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#define SDL_strcasecmp _stricmp |
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#else |
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extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2); |
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#endif |
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#ifdef HAVE_STRNCASECMP |
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#define SDL_strncasecmp strncasecmp |
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#elif defined(HAVE__STRNICMP) |
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#define SDL_strncasecmp _strnicmp |
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#else |
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extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen); |
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#endif |
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#ifdef HAVE_SSCANF |
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#define SDL_sscanf sscanf |
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#else |
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extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...); |
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#endif |
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#ifdef HAVE_SNPRINTF |
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#define SDL_snprintf snprintf |
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#else |
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extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...); |
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#endif |
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#ifdef HAVE_VSNPRINTF |
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#define SDL_vsnprintf vsnprintf |
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#else |
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extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap); |
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#endif |
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/** @name SDL_ICONV Error Codes |
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* The SDL implementation of iconv() returns these error codes |
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*/ |
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/*@{*/ |
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#define SDL_ICONV_ERROR (size_t)-1 |
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#define SDL_ICONV_E2BIG (size_t)-2 |
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#define SDL_ICONV_EILSEQ (size_t)-3 |
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#define SDL_ICONV_EINVAL (size_t)-4 |
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/*@}*/ |
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#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H) |
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#define SDL_iconv_t iconv_t |
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#define SDL_iconv_open iconv_open |
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#define SDL_iconv_close iconv_close |
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#else |
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typedef struct _SDL_iconv_t *SDL_iconv_t; |
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extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode); |
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extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd); |
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#endif |
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extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft); |
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/** This function converts a string between encodings in one pass, returning a |
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* string that must be freed with SDL_free() or NULL on error. |
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*/ |
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extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft); |
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#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1) |
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#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1) |
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#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1) |
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/* Ends C function definitions when using C++ */ |
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#ifdef __cplusplus |
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} |
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#endif |
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#include "close_code.h" |
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#endif /* _SDL_stdinc_h */
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