This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_stdinc.h
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
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/**
* \file SDL_stdinc.h
*
* This is a general header that includes C language support
*/
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#ifndef _SDL_stdinc_h
#define _SDL_stdinc_h
#include "SDL_config.h"
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
#endif
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#ifdef HAVE_STDIO_H
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#include <stdio.h>
#endif
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#if defined(STDC_HEADERS)
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# include <stdlib.h>
# include <stddef.h>
# include <stdarg.h>
#else
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# if defined(HAVE_STDLIB_H)
# include <stdlib.h>
# elif defined(HAVE_MALLOC_H)
# include <malloc.h>
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# endif
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# if defined(HAVE_STDDEF_H)
# include <stddef.h>
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# if defined(HAVE_STDARG_H)
# include <stdarg.h>
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# endif
#endif
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#ifdef HAVE_STRING_H
# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
# include <memory.h>
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# endif
# include <string.h>
#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
#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>
#endif
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#ifdef HAVE_CTYPE_H
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# include <ctype.h>
#endif
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#ifdef HAVE_ICONV_H
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# include <iconv.h>
#endif
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/* The number of elements in an array */
#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
#define SDL_TABLESIZE(table) SDL_arraysize(table)
/* Basic data types */
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typedef enum SDL_bool
{
SDL_FALSE = 0,
SDL_TRUE = 1
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} SDL_bool;
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/**
* \typedef Sint8
* \brief A signed 8-bit integer type.
*/
typedef int8_t Sint8;
/**
* \typedef Uint8
* \brief An unsigned 8-bit integer type.
*/
typedef uint8_t Uint8;
/**
* \typedef Sint16
* \brief A signed 16-bit integer type.
*/
typedef int16_t Sint16;
/**
* \typedef Uint16
* \brief An unsigned 16-bit integer type.
*/
typedef uint16_t Uint16;
/**
* \typedef Sint32
* \brief A signed 32-bit integer type.
*/
typedef int32_t Sint32;
/**
* \typedef Uint32
* \brief An unsigned 32-bit integer type.
*/
typedef uint32_t Uint32;
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#ifdef SDL_HAS_64BIT_TYPE
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/**
* \typedef Sint64
* \brief A signed 64-bit integer type.
* \warning On platforms without any sort of 64-bit datatype, this is equivalent to Sint32!
*/
typedef int64_t Sint64;
/**
* \typedef Uint64
* \brief An unsigned 64-bit integer type.
* \warning On platforms without any sort of 64-bit datatype, this is equivalent to Uint32!
*/
typedef uint64_t Uint64;
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#else
/* This is really just a hack to prevent the compiler from complaining */
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typedef Sint32 Sint64;
typedef Uint32 Uint64;
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#endif
/* Make sure the types really have the right sizes */
#define SDL_COMPILE_TIME_ASSERT(name, x) \
typedef int SDL_dummy_ ## name[(x) * 2 - 1]
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
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#ifndef __NINTENDODS__ /* TODO: figure out why the following happens:
include/SDL_stdinc.h:150: error: size of array 'SDL_dummy_uint64' is negative
include/SDL_stdinc.h:151: error: size of array 'SDL_dummy_sint64' is negative */
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SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
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#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
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/* Check to make sure enums are the size of ints, for structure packing.
For both Watcom C/C++ and Borland C/C++ the compiler option that makes
enums having the size of an int must be enabled.
This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
*/
/* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
#ifdef __MWERKS__
#pragma enumsalwaysint on
#endif
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#ifndef DOXYGEN_SHOULD_IGNORE_THIS
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#ifndef __NINTENDODS__ /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
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typedef enum
{
DUMMY_ENUM_VALUE
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} SDL_DUMMY_ENUM;
SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
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#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
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#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
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/* *INDENT-OFF* */
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extern "C" {
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/* *INDENT-ON* */
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#endif
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#ifdef HAVE_MALLOC
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#define SDL_malloc malloc
#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
#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
#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
#else
extern DECLSPEC void SDLCALL SDL_free(void *mem);
#endif
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#if defined(HAVE_ALLOCA) && !defined(alloca)
# 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>
# define alloca _alloca
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# elif defined(__WATCOMC__)
# include <malloc.h>
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# elif defined(__BORLANDC__)
# include <malloc.h>
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# elif defined(__DMC__)
# 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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char *alloca();
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# endif
#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)
#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)
#endif
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#ifdef HAVE_GETENV
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#define SDL_getenv getenv
#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
#else
extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
#endif
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#ifdef HAVE_QSORT
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#define SDL_qsort qsort
#else
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
#else
#define SDL_abs(X) ((X) < 0 ? -(X) : (X))
#endif
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#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
#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)
#define SDL_isspace(X) isspace(X)
#define SDL_toupper(X) toupper(X)
#define SDL_tolower(X) tolower(X)
#else
#define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9'))
#define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
#define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
#define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
#endif
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#ifdef HAVE_MEMSET
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#define SDL_memset memset
#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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#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
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#if defined(__GNUC__) && defined(i386)
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#define SDL_memset4(dst, val, len) \
do { \
int u0, u1, u2; \
__asm__ __volatile__ ( \
"cld\n\t" \
"rep ; stosl\n\t" \
: "=&D" (u0), "=&a" (u1), "=&c" (u2) \
: "0" (dst), "1" (val), "2" ((Uint32)(len)) \
: "memory" ); \
} while(0)
#endif
#ifndef SDL_memset4
#define SDL_memset4(dst, val, len) \
do { \
unsigned _count = (len); \
unsigned _n = (_count + 3) / 4; \
Uint32 *_p = (Uint32 *)(dst); \
Uint32 _val = (val); \
switch (_count % 4) { \
case 0: do { *_p++ = _val; \
case 3: *_p++ = _val; \
case 2: *_p++ = _val; \
case 1: *_p++ = _val; \
} while ( --_n ); \
} \
} while(0)
#endif
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/* We can count on memcpy existing on Mac OS X and being well-tuned. */
#if defined(__MACH__) && defined(__APPLE__)
#define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
#elif defined(__GNUC__) && defined(i386)
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#define SDL_memcpy(dst, src, len) \
do { \
int u0, u1, u2; \
__asm__ __volatile__ ( \
"cld\n\t" \
"rep ; movsl\n\t" \
"testb $2,%b4\n\t" \
"je 1f\n\t" \
"movsw\n" \
"1:\ttestb $1,%b4\n\t" \
"je 2f\n\t" \
"movsb\n" \
"2:" \
: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
: "memory" ); \
} while(0)
#endif
#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))
#else
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extern DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src,
size_t len);
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#endif
#endif
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/* We can count on memcpy existing on Mac OS X and being well-tuned. */
#if defined(__MACH__) && defined(__APPLE__)
#define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
#elif defined(__GNUC__) && defined(i386)
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#define SDL_memcpy4(dst, src, len) \
do { \
int ecx, edi, esi; \
__asm__ __volatile__ ( \
"cld\n\t" \
"rep ; movsl" \
: "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
: "0" ((unsigned)(len)), "1" (dst), "2" (src) \
: "memory" ); \
} while(0)
#endif
#ifndef SDL_memcpy4
#define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2)
#endif
#if defined(__GNUC__) && defined(i386)
#define SDL_revcpy(dst, src, len) \
do { \
int u0, u1, u2; \
char *dstp = (char *)(dst); \
char *srcp = (char *)(src); \
int n = (len); \
if ( n >= 4 ) { \
__asm__ __volatile__ ( \
"std\n\t" \
"rep ; movsl\n\t" \
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: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
: "0" (n >> 2), \
"1" (dstp+(n-4)), "2" (srcp+(n-4)) \
: "memory" ); \
} \
switch (n & 3) { \
case 3: dstp[2] = srcp[2]; \
case 2: dstp[1] = srcp[1]; \
case 1: dstp[0] = srcp[0]; \
break; \
default: \
break; \
} \
} while(0)
#endif
#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))
#else
#define SDL_memmove(dst, src, len) \
do { \
if ( dst < src ) { \
SDL_memcpy(dst, src, len); \
} else { \
SDL_revcpy(dst, src, len); \
} \
} while(0)
#endif
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#ifdef HAVE_MEMCMP
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#define SDL_memcmp memcmp
#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
#else
extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
#endif
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#ifdef HAVE_WCSLEN
#define SDL_wcslen wcslen
#else
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#if !defined(wchar_t) && defined(__NINTENDODS__)
#define wchar_t short /* TODO: figure out why libnds doesn't have this */
#endif
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extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t * string);
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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
#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
#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
#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
#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
#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
#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
#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
#else
#define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix)
#endif
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#ifdef HAVE__LTOA
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#define SDL_ltoa _ltoa
#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
#else
#define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix)
#endif
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#ifdef HAVE__ULTOA
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#define SDL_ultoa _ultoa
#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
#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
#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
#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
#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
#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
#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
#else
extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
#endif
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#ifdef HAVE_ATOI
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#define SDL_atoi atoi
#else
#define SDL_atoi(X) SDL_strtol(X, NULL, 0)
#endif
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#ifdef HAVE_ATOF
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#define SDL_atof atof
#else
#define SDL_atof(X) SDL_strtod(X, NULL)
#endif
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#ifdef HAVE_STRCMP
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#define SDL_strcmp strcmp
#else
extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
#endif
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#ifdef HAVE_STRNCMP
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#define SDL_strncmp strncmp
#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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extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1,
const char *str2, size_t maxlen);
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#ifdef HAVE_SSCANF
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#define SDL_sscanf sscanf
#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
#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
#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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/* The SDL implementation of iconv() returns these error codes */
#define SDL_ICONV_ERROR (size_t)-1
#define SDL_ICONV_E2BIG (size_t)-2
#define SDL_ICONV_EILSEQ (size_t)-3
#define SDL_ICONV_EINVAL (size_t)-4
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#ifdef HAVE_ICONV
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#define SDL_iconv_t iconv_t
#define SDL_iconv_open iconv_open
#define SDL_iconv_close iconv_close
#else
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
extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
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size_t * inbytesleft, char **outbuf,
size_t * outbytesleft);
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/* This function converts a string between encodings in one pass, returning a
string that must be freed with SDL_free() or NULL on error.
*/
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extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
const char *fromcode,
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const char *inbuf,
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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)
#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++ */
#ifdef __cplusplus
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/* *INDENT-OFF* */
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/* *INDENT-ON* */
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#endif
#include "close_code.h"
#endif /* _SDL_stdinc_h */
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/* vi: set ts=4 sw=4 expandtab: */