include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Tue, 21 Feb 2006 08:46:50 +0000
changeset 1402 d910939febfa
parent 1381 8570e1f4b1f1
child 1422 d2ee8da60262
permissions -rw-r--r--
Use consistent identifiers for the various platforms we support.
Make sure every source file includes SDL_config.h, so the proper system
headers are chosen.
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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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#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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# elif HAVE_MALLOC_H
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# include <malloc.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_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 && !defined(alloca)
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# if 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(__AIX__)
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  #pragma alloca
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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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#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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#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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#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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#endif
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#if 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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#if 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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#if 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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   374
#endif
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   376
#if 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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   380
#endif
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   381
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   382
#if 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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   388
#if HAVE__STRLWR
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#define SDL_strlwr      _strlwr
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   390
#else
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   391
extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
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   392
#endif
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   393
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   394
#if HAVE_STRCHR
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#define SDL_strchr      strchr
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   396
#elif HAVE_INDEX
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   397
#define SDL_strchr      index
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   398
#else
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   399
extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
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   400
#endif
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   401
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   402
#if HAVE_STRRCHR
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   403
#define SDL_strrchr     strrchr
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   404
#elif HAVE_RINDEX
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   405
#define SDL_strrchr     rindex
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   406
#else
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   407
extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
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   408
#endif
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   409
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   410
#if HAVE_STRSTR
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   411
#define SDL_strstr      strstr
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   412
#else
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   413
extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
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   414
#endif
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   415
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   416
#if HAVE_ITOA
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   417
#define SDL_itoa        itoa
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   418
#else
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   419
#define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
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   420
#endif
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   421
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   422
#if HAVE__LTOA
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   423
#define SDL_ltoa        _ltoa
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   424
#else
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   425
extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
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   426
#endif
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   427
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   428
#if HAVE__UITOA
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   429
#define SDL_uitoa       _uitoa
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   430
#else
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   431
#define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
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   432
#endif
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   433
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   434
#if HAVE__ULTOA
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   435
#define SDL_ultoa       _ultoa
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   436
#else
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   437
extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
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   438
#endif
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   439
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   440
#if HAVE_STRTOL
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   441
#define SDL_strtol      strtol
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   442
#else
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   443
extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
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   444
#endif
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   445
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   446
#if SDL_HAS_64BIT_TYPE
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   447
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   448
#if HAVE__I64TOA
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   449
#define SDL_lltoa       _i64toa
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   450
#else
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   451
extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
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   452
#endif
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   453
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   454
#if HAVE__UI64TOA
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   455
#define SDL_ulltoa      _ui64toa
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   456
#else
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   457
extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
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   458
#endif
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   459
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   460
#if HAVE_STRTOLL
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   461
#define SDL_strtoll     strtoll
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   462
#else
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   463
extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
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   464
#endif
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   465
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   466
#endif /* SDL_HAS_64BIT_TYPE */
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   467
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   468
#if HAVE_STRTOD
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   469
#define SDL_strtod      strtod
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   470
#else
slouken@1357
   471
extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
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   472
#endif
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   473
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   474
#if HAVE_ATOI
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   475
#define SDL_atoi        atoi
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   476
#else
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   477
#define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
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   478
#endif
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   479
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   480
#if HAVE_ATOF
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   481
#define SDL_atof        atof
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   482
#else
slouken@1357
   483
#define SDL_atof(X)     SDL_strtod(X, NULL)
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   484
#endif
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   485
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   486
#if HAVE_STRCMP
slouken@1357
   487
#define SDL_strcmp      strcmp
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   488
#else
slouken@1357
   489
extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
slouken@1357
   490
#endif
slouken@1357
   491
slouken@1357
   492
#if HAVE_STRNCMP
slouken@1357
   493
#define SDL_strncmp     strncmp
slouken@1357
   494
#else
slouken@1357
   495
extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
slouken@1357
   496
#endif
slouken@1357
   497
slouken@1357
   498
#if HAVE_STRCASECMP
slouken@1357
   499
#define SDL_strcasecmp  strcasecmp
slouken@1357
   500
#elif HAVE_STRICMP
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   501
#define SDL_strcasecmp  stricmp
slouken@1357
   502
#else
slouken@1357
   503
extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
slouken@1357
   504
#endif
slouken@1357
   505
slouken@1357
   506
#if HAVE_SSCANF
slouken@1357
   507
#define SDL_sscanf      sscanf
slouken@1357
   508
#else
slouken@1357
   509
extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
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   510
#endif
slouken@1357
   511
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   512
#if HAVE_SNPRINTF
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   513
#define SDL_snprintf    snprintf
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   514
#else
slouken@1357
   515
extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
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   516
#endif
slouken@1357
   517
slouken@1357
   518
#if HAVE_VSNPRINTF
slouken@1357
   519
#define SDL_vsnprintf   vsnprintf
slouken@1357
   520
#else
slouken@1357
   521
extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
slouken@1357
   522
#endif
slouken@1357
   523
slouken@1357
   524
/* Ends C function definitions when using C++ */
slouken@1357
   525
#ifdef __cplusplus
slouken@1357
   526
}
slouken@1357
   527
#endif
slouken@1357
   528
#include "close_code.h"
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   529
slouken@1357
   530
#endif /* _SDL_stdinc_h */