include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Fri, 10 Feb 2006 03:21:39 +0000
changeset 1357 e18467d67cfd
child 1361 19418e4422cb
permissions -rw-r--r--
Whoops, need this. :)
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/*
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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,
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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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/* This is a general header that includes C language support */
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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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/* AIX requires this to be the first thing in the file.  */
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#ifndef __GNUC__
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# if HAVE_ALLOCA_H
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#  include <alloca.h>
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# else
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#  ifdef _AIX
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 #pragma alloca
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#  else
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#   ifndef alloca /* predefined by HP cc +Olibcalls */
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char *alloca ();
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#   endif
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#  endif
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# endif
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#endif
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#if HAVE_STDIO_H
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#include <stdio.h>
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#endif
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#if 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 HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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# if HAVE_STDARG_H
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# include <stdarg.h>
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# endif
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#endif
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#if HAVE_MALLOC_H
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# include <malloc.h>
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#endif
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#if HAVE_STRING_H
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# if !STDC_HEADERS && 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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#if HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#if HAVE_INTTYPES_H
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# include <inttypes.h>
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#else
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# if HAVE_STDINT_H
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# include <stdint.h>
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# endif
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#endif
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#if HAVE_CTYPE_H
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# include <ctype.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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/* Basic data types */
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typedef enum SDL_bool {
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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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typedef uint64_t	Uint64;
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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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/* Make sure the types really have the right sizes */
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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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/* 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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SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
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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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#if 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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#if 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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#if 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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#if 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 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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#if 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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#if 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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#if 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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#if 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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#if 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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#if 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" ((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 = (Uint32 *)(dst);		\
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	Uint32 _val = (val);			\
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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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#if 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" ((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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#if HAVE_MEMCPY
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#define SDL_memcpy      memcpy
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#elif 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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#if 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" ((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 = (char *)(dst);			\
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	char *srcp = (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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		: "=&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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#if HAVE_MEMMOVE
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#define SDL_memmove     memmove
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#elif 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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#if 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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#if 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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   354
#endif
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#if HAVE_STRCPY
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#define SDL_strcpy     strcpy
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   358
#else
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extern DECLSPEC char * SDLCALL SDL_strcpy(char *dst, const char *src);
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   360
#endif
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   361
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   362
#if HAVE_STRNCPY
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   363
#define SDL_strncpy     strncpy
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   364
#else
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extern DECLSPEC char * SDLCALL SDL_strncpy(char *dst, const char *src, size_t maxlen);
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#endif
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   368
#if HAVE_STRCAT
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   369
#define SDL_strcat     strcat
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   370
#else
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#define SDL_strcat(dst, src)    (SDL_strcpy(dst+SDL_strlen(dst), src), dst)
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   372
#endif
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   373
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   374
#if HAVE_STRNCAT
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#define SDL_strncat    strncat
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   376
#else
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   377
#define SDL_strncat(dst, src, n) (SDL_strncpy(dst+SDL_strlen(dst), src, n), dst)
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#endif
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   379
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#if HAVE_STRDUP
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#define SDL_strdup     strdup
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   382
#else
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extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
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   384
#endif
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   385
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   386
#if HAVE__STRREV
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#define SDL_strrev      _strrev
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   388
#else
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   389
extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
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   390
#endif
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   391
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   392
#if HAVE__STRUPR
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#define SDL_strupr      _strupr
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   394
#else
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   395
extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
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   396
#endif
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   397
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   398
#if HAVE__STRLWR
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   399
#define SDL_strlwr      _strlwr
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   400
#else
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extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
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   402
#endif
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   403
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   404
#if HAVE_STRCHR
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   405
#define SDL_strchr      strchr
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   406
#elif HAVE_INDEX
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   407
#define SDL_strchr      index
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   408
#else
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   409
extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
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   410
#endif
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   411
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   412
#if HAVE_STRRCHR
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   413
#define SDL_strrchr     strrchr
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   414
#elif HAVE_RINDEX
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   415
#define SDL_strrchr     rindex
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   416
#else
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   417
extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
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   418
#endif
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   419
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   420
#if HAVE_STRSTR
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   421
#define SDL_strstr      strstr
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   422
#else
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   423
extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
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   424
#endif
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   425
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   426
#if HAVE_ITOA
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   427
#define SDL_itoa        itoa
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   428
#else
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   429
#define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
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   430
#endif
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   431
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   432
#if HAVE__LTOA
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   433
#define SDL_ltoa        _ltoa
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   434
#else
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   435
extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
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   436
#endif
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   437
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   438
#if HAVE__UITOA
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   439
#define SDL_uitoa       _uitoa
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   440
#else
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   441
#define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
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   442
#endif
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   443
slouken@1357
   444
#if HAVE__ULTOA
slouken@1357
   445
#define SDL_ultoa       _ultoa
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   446
#else
slouken@1357
   447
extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
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   448
#endif
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   449
slouken@1357
   450
#if HAVE_STRTOL
slouken@1357
   451
#define SDL_strtol      strtol
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   452
#else
slouken@1357
   453
extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
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   454
#endif
slouken@1357
   455
slouken@1357
   456
#if SDL_HAS_64BIT_TYPE
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   457
slouken@1357
   458
#if HAVE__I64TOA
slouken@1357
   459
#define SDL_lltoa       _i64toa
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   460
#else
slouken@1357
   461
extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
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   462
#endif
slouken@1357
   463
slouken@1357
   464
#if HAVE__UI64TOA
slouken@1357
   465
#define SDL_ulltoa      _ui64toa
slouken@1357
   466
#else
slouken@1357
   467
extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
slouken@1357
   468
#endif
slouken@1357
   469
slouken@1357
   470
#if HAVE_STRTOLL
slouken@1357
   471
#define SDL_strtoll     strtoll
slouken@1357
   472
#else
slouken@1357
   473
extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
slouken@1357
   474
#endif
slouken@1357
   475
slouken@1357
   476
#endif /* SDL_HAS_64BIT_TYPE */
slouken@1357
   477
slouken@1357
   478
#if HAVE_STRTOD
slouken@1357
   479
#define SDL_strtod      strtod
slouken@1357
   480
#else
slouken@1357
   481
extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
slouken@1357
   482
#endif
slouken@1357
   483
slouken@1357
   484
#if HAVE_ATOI
slouken@1357
   485
#define SDL_atoi        atoi
slouken@1357
   486
#else
slouken@1357
   487
#define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
slouken@1357
   488
#endif
slouken@1357
   489
slouken@1357
   490
#if HAVE_ATOF
slouken@1357
   491
#define SDL_atof        atof
slouken@1357
   492
#else
slouken@1357
   493
#define SDL_atof(X)     SDL_strtod(X, NULL)
slouken@1357
   494
#endif
slouken@1357
   495
slouken@1357
   496
#if HAVE_STRCMP
slouken@1357
   497
#define SDL_strcmp      strcmp
slouken@1357
   498
#else
slouken@1357
   499
extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
slouken@1357
   500
#endif
slouken@1357
   501
slouken@1357
   502
#if HAVE_STRNCMP
slouken@1357
   503
#define SDL_strncmp     strncmp
slouken@1357
   504
#else
slouken@1357
   505
extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
slouken@1357
   506
#endif
slouken@1357
   507
slouken@1357
   508
#if HAVE_STRCASECMP
slouken@1357
   509
#define SDL_strcasecmp  strcasecmp
slouken@1357
   510
#elif HAVE_STRICMP
slouken@1357
   511
#define SDL_strcasecmp  stricmp
slouken@1357
   512
#else
slouken@1357
   513
extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
slouken@1357
   514
#endif
slouken@1357
   515
slouken@1357
   516
#if HAVE_SSCANF
slouken@1357
   517
#define SDL_sscanf      sscanf
slouken@1357
   518
#else
slouken@1357
   519
extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
slouken@1357
   520
#endif
slouken@1357
   521
slouken@1357
   522
#if HAVE_SNPRINTF
slouken@1357
   523
#define SDL_snprintf    snprintf
slouken@1357
   524
#else
slouken@1357
   525
extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
slouken@1357
   526
#endif
slouken@1357
   527
slouken@1357
   528
#if HAVE_VSNPRINTF
slouken@1357
   529
#define SDL_vsnprintf   vsnprintf
slouken@1357
   530
#else
slouken@1357
   531
extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
slouken@1357
   532
#endif
slouken@1357
   533
slouken@1357
   534
/* Ends C function definitions when using C++ */
slouken@1357
   535
#ifdef __cplusplus
slouken@1357
   536
}
slouken@1357
   537
#endif
slouken@1357
   538
#include "close_code.h"
slouken@1357
   539
slouken@1357
   540
#endif /* _SDL_stdinc_h */