include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Mon, 25 Jun 2007 00:50:20 +0000
branchSDL-1.2
changeset 3976 8582c6a5ca16
parent 3975 e85e65aec22f
child 3984 b74530a1dad6
permissions -rw-r--r--
Added initial support for Nintendo DS, based on the work by Troy Davis (GPF)
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2006 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 
    23 /* This is a general header that includes C language support */
    24 
    25 #ifndef _SDL_stdinc_h
    26 #define _SDL_stdinc_h
    27 
    28 #include "SDL_config.h"
    29 
    30 
    31 #ifdef HAVE_SYS_TYPES_H
    32 #include <sys/types.h>
    33 #endif
    34 #ifdef HAVE_STDIO_H
    35 #include <stdio.h>
    36 #endif
    37 #if defined(STDC_HEADERS)
    38 # include <stdlib.h>
    39 # include <stddef.h>
    40 # include <stdarg.h>
    41 #else
    42 # if defined(HAVE_STDLIB_H)
    43 #  include <stdlib.h>
    44 # elif defined(HAVE_MALLOC_H)
    45 #  include <malloc.h>
    46 # endif
    47 # if defined(HAVE_STDDEF_H)
    48 #  include <stddef.h>
    49 # endif
    50 # if defined(HAVE_STDARG_H)
    51 #  include <stdarg.h>
    52 # endif
    53 #endif
    54 #ifdef HAVE_STRING_H
    55 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
    56 #  include <memory.h>
    57 # endif
    58 # include <string.h>
    59 #endif
    60 #ifdef HAVE_STRINGS_H
    61 # include <strings.h>
    62 #endif
    63 #if defined(HAVE_INTTYPES_H)
    64 # include <inttypes.h>
    65 #elif defined(HAVE_STDINT_H)
    66 # include <stdint.h>
    67 #endif
    68 #ifdef HAVE_CTYPE_H
    69 # include <ctype.h>
    70 #endif
    71 #ifdef HAVE_ICONV_H
    72 # include <iconv.h>
    73 #endif
    74 
    75 /* The number of elements in an array */
    76 #define SDL_arraysize(array)	(sizeof(array)/sizeof(array[0]))
    77 #define SDL_TABLESIZE(table)	SDL_arraysize(table)
    78 
    79 /* Basic data types */
    80 typedef enum SDL_bool {
    81 	SDL_FALSE = 0,
    82 	SDL_TRUE  = 1
    83 } SDL_bool;
    84 
    85 typedef int8_t		Sint8;
    86 typedef uint8_t		Uint8;
    87 typedef int16_t		Sint16;
    88 typedef uint16_t	Uint16;
    89 typedef int32_t		Sint32;
    90 typedef uint32_t	Uint32;
    91 
    92 #ifdef SDL_HAS_64BIT_TYPE
    93 typedef int64_t		Sint64;
    94 #ifndef SYMBIAN32_GCCE
    95 typedef uint64_t	Uint64;
    96 #endif
    97 #else
    98 /* This is really just a hack to prevent the compiler from complaining */
    99 typedef struct {
   100 	Uint32 hi;
   101 	Uint32 lo;
   102 } Uint64, Sint64;
   103 #endif
   104 
   105 /* Make sure the types really have the right sizes */
   106 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   107        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   108 
   109 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   110 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   111 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   112 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   113 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   114 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   115 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   116 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   117 
   118 /* Check to make sure enums are the size of ints, for structure packing.
   119    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   120    enums having the size of an int must be enabled.
   121    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   122 */
   123 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   124 #ifdef __MWERKS__
   125 #pragma enumsalwaysint on
   126 #endif
   127 
   128 typedef enum {
   129 	DUMMY_ENUM_VALUE
   130 } SDL_DUMMY_ENUM;
   131 
   132 #ifndef __NDS__
   133 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   134 #endif
   135 
   136 
   137 #include "begin_code.h"
   138 /* Set up for C function definitions, even when using C++ */
   139 #ifdef __cplusplus
   140 extern "C" {
   141 #endif
   142 
   143 #ifdef HAVE_MALLOC
   144 #define SDL_malloc	malloc
   145 #else
   146 extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);
   147 #endif
   148 
   149 #ifdef HAVE_CALLOC
   150 #define SDL_calloc	calloc
   151 #else
   152 extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);
   153 #endif
   154 
   155 #ifdef HAVE_REALLOC
   156 #define SDL_realloc	realloc
   157 #else
   158 extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);
   159 #endif
   160 
   161 #ifdef HAVE_FREE
   162 #define SDL_free	free
   163 #else
   164 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   165 #endif
   166 
   167 #if defined(HAVE_ALLOCA) && !defined(alloca)
   168 # if defined(HAVE_ALLOCA_H)
   169 #  include <alloca.h>
   170 # elif defined(__GNUC__)
   171 #  define alloca __builtin_alloca
   172 # elif defined(_MSC_VER)
   173 #  include <malloc.h>
   174 #  define alloca _alloca
   175 # elif defined(__WATCOMC__)
   176 #  include <malloc.h>
   177 # elif defined(__DMC__)
   178 #  include <stdlib.h>
   179 # elif defined(__AIX__)
   180   #pragma alloca
   181 # elif defined(__MRC__)
   182    void *alloca (unsigned);
   183 # else
   184    char *alloca ();
   185 # endif
   186 #endif
   187 #ifdef HAVE_ALLOCA
   188 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   189 #define SDL_stack_free(data)
   190 #else
   191 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   192 #define SDL_stack_free(data)            SDL_free(data)
   193 #endif
   194 
   195 #ifdef HAVE_GETENV
   196 #define SDL_getenv	getenv
   197 #else
   198 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);
   199 #endif
   200 
   201 #ifdef HAVE_PUTENV
   202 #define SDL_putenv	putenv
   203 #else
   204 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
   205 #endif
   206 
   207 #ifdef HAVE_QSORT
   208 #define SDL_qsort	qsort
   209 #else
   210 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
   211            int (*compare)(const void *, const void *));
   212 #endif
   213 
   214 #ifdef HAVE_ABS
   215 #define SDL_abs		abs
   216 #else
   217 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))
   218 #endif
   219 
   220 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))
   221 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))
   222 
   223 #ifdef HAVE_CTYPE_H
   224 #define SDL_isdigit(X)  isdigit(X)
   225 #define SDL_isspace(X)  isspace(X)
   226 #define SDL_toupper(X)  toupper(X)
   227 #define SDL_tolower(X)  tolower(X)
   228 #else
   229 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))
   230 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
   231 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
   232 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
   233 #endif
   234 
   235 #ifdef HAVE_MEMSET
   236 #define SDL_memset      memset
   237 #else
   238 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
   239 #endif
   240 
   241 /* We can count on memset existing on Mac OS X and being well-tuned. */
   242 #if defined(__MACH__) && defined(__APPLE__)
   243 #define SDL_memset4(dst, val, len) memset(dst, val, (len)*4)
   244 #elif defined(__GNUC__) && defined(i386)
   245 #define SDL_memset4(dst, val, len)				\
   246 do {								\
   247 	int u0, u1, u2;						\
   248 	__asm__ __volatile__ (					\
   249 		"cld\n\t"					\
   250 		"rep ; stosl\n\t"				\
   251 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\
   252 		: "0" (dst), "1" (val), "2" ((Uint32)(len))	\
   253 		: "memory" );					\
   254 } while(0)
   255 #endif
   256 #ifndef SDL_memset4
   257 #define SDL_memset4(dst, val, len)		\
   258 do {						\
   259 	unsigned _count = (len);		\
   260 	unsigned _n = (_count + 3) / 4;		\
   261 	Uint32 *_p = (Uint32 *)(dst);		\
   262 	Uint32 _val = (val);			\
   263         switch (_count % 4) {			\
   264         case 0: do {    *_p++ = _val;		\
   265         case 3:         *_p++ = _val;		\
   266         case 2:         *_p++ = _val;		\
   267         case 1:         *_p++ = _val;		\
   268 		} while ( --_n );		\
   269 	}					\
   270 } while(0)
   271 #endif
   272 
   273 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   274 #if defined(__MACH__) && defined(__APPLE__)
   275 #define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
   276 #elif defined(__GNUC__) && defined(i386)
   277 #define SDL_memcpy(dst, src, len)					  \
   278 do {									  \
   279 	int u0, u1, u2;						  	  \
   280 	__asm__ __volatile__ (						  \
   281 		"cld\n\t"						  \
   282 		"rep ; movsl\n\t"					  \
   283 		"testb $2,%b4\n\t"					  \
   284 		"je 1f\n\t"						  \
   285 		"movsw\n"						  \
   286 		"1:\ttestb $1,%b4\n\t"					  \
   287 		"je 2f\n\t"						  \
   288 		"movsb\n"						  \
   289 		"2:"							  \
   290 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \
   291 		: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
   292 		: "memory" );						  \
   293 } while(0)
   294 #endif
   295 #ifndef SDL_memcpy
   296 #ifdef HAVE_MEMCPY
   297 #define SDL_memcpy      memcpy
   298 #elif defined(HAVE_BCOPY)
   299 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))
   300 #else
   301 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
   302 #endif
   303 #endif
   304 
   305 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   306 #if defined(__MACH__) && defined(__APPLE__)
   307 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
   308 #elif defined(__GNUC__) && defined(i386)
   309 #define SDL_memcpy4(dst, src, len)				\
   310 do {								\
   311 	int ecx, edi, esi;					\
   312 	__asm__ __volatile__ (					\
   313 		"cld\n\t"					\
   314 		"rep ; movsl"					\
   315 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\
   316 		: "0" ((unsigned)(len)), "1" (dst), "2" (src)	\
   317 		: "memory" );					\
   318 } while(0)
   319 #endif
   320 #ifndef SDL_memcpy4
   321 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)
   322 #endif
   323 
   324 #if defined(__GNUC__) && defined(i386)
   325 #define SDL_revcpy(dst, src, len)			\
   326 do {							\
   327 	int u0, u1, u2;					\
   328 	char *dstp = (char *)(dst);			\
   329 	char *srcp = (char *)(src);			\
   330 	int n = (len);					\
   331 	if ( n >= 4 ) {					\
   332 	__asm__ __volatile__ (				\
   333 		"std\n\t"				\
   334 		"rep ; movsl\n\t"			\
   335 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\
   336 		: "0" (n >> 2),				\
   337 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\
   338 		: "memory" );				\
   339 	}						\
   340 	switch (n & 3) {				\
   341 		case 3: dstp[2] = srcp[2];		\
   342 		case 2: dstp[1] = srcp[1];		\
   343 		case 1: dstp[0] = srcp[0];		\
   344 			break;				\
   345 		default:				\
   346 			break;				\
   347 	}						\
   348 } while(0)
   349 #endif
   350 #ifndef SDL_revcpy
   351 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
   352 #endif
   353 
   354 #ifdef HAVE_MEMMOVE
   355 #define SDL_memmove     memmove
   356 #elif defined(HAVE_BCOPY)
   357 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))
   358 #else
   359 #define SDL_memmove(dst, src, len)			\
   360 do {							\
   361 	if ( dst < src ) {				\
   362 		SDL_memcpy(dst, src, len);		\
   363 	} else {					\
   364 		SDL_revcpy(dst, src, len);		\
   365 	}						\
   366 } while(0)
   367 #endif
   368 
   369 #ifdef HAVE_MEMCMP
   370 #define SDL_memcmp      memcmp
   371 #else
   372 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   373 #endif
   374 
   375 #ifdef HAVE_STRLEN
   376 #define SDL_strlen      strlen
   377 #else
   378 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
   379 #endif
   380 
   381 #ifdef HAVE_STRLCPY
   382 #define SDL_strlcpy     strlcpy
   383 #else
   384 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);
   385 #endif
   386 
   387 #ifdef HAVE_STRLCAT
   388 #define SDL_strlcat    strlcat
   389 #else
   390 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);
   391 #endif
   392 
   393 #ifdef HAVE_STRDUP
   394 #define SDL_strdup     strdup
   395 #else
   396 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
   397 #endif
   398 
   399 #ifdef HAVE__STRREV
   400 #define SDL_strrev      _strrev
   401 #else
   402 extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
   403 #endif
   404 
   405 #ifdef HAVE__STRUPR
   406 #define SDL_strupr      _strupr
   407 #else
   408 extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
   409 #endif
   410 
   411 #ifdef HAVE__STRLWR
   412 #define SDL_strlwr      _strlwr
   413 #else
   414 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
   415 #endif
   416 
   417 #ifdef HAVE_STRCHR
   418 #define SDL_strchr      strchr
   419 #elif defined(HAVE_INDEX)
   420 #define SDL_strchr      index
   421 #else
   422 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
   423 #endif
   424 
   425 #ifdef HAVE_STRRCHR
   426 #define SDL_strrchr     strrchr
   427 #elif defined(HAVE_RINDEX)
   428 #define SDL_strrchr     rindex
   429 #else
   430 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
   431 #endif
   432 
   433 #ifdef HAVE_STRSTR
   434 #define SDL_strstr      strstr
   435 #else
   436 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
   437 #endif
   438 
   439 #ifdef HAVE_ITOA
   440 #define SDL_itoa        itoa
   441 #else
   442 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
   443 #endif
   444 
   445 #ifdef HAVE__LTOA
   446 #define SDL_ltoa        _ltoa
   447 #else
   448 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
   449 #endif
   450 
   451 #ifdef HAVE__UITOA
   452 #define SDL_uitoa       _uitoa
   453 #else
   454 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
   455 #endif
   456 
   457 #ifdef HAVE__ULTOA
   458 #define SDL_ultoa       _ultoa
   459 #else
   460 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
   461 #endif
   462 
   463 #ifdef HAVE_STRTOL
   464 #define SDL_strtol      strtol
   465 #else
   466 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
   467 #endif
   468 
   469 #ifdef HAVE_STRTOUL
   470 #define SDL_strtoul      strtoul
   471 #else
   472 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base);
   473 #endif
   474 
   475 #ifdef SDL_HAS_64BIT_TYPE
   476 
   477 #ifdef HAVE__I64TOA
   478 #define SDL_lltoa       _i64toa
   479 #else
   480 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
   481 #endif
   482 
   483 #ifdef HAVE__UI64TOA
   484 #define SDL_ulltoa      _ui64toa
   485 #else
   486 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
   487 #endif
   488 
   489 #ifdef HAVE_STRTOLL
   490 #define SDL_strtoll     strtoll
   491 #else
   492 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
   493 #endif
   494 
   495 #ifdef HAVE_STRTOULL
   496 #define SDL_strtoull     strtoull
   497 #else
   498 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base);
   499 #endif
   500 
   501 #endif /* SDL_HAS_64BIT_TYPE */
   502 
   503 #ifdef HAVE_STRTOD
   504 #define SDL_strtod      strtod
   505 #else
   506 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
   507 #endif
   508 
   509 #ifdef HAVE_ATOI
   510 #define SDL_atoi        atoi
   511 #else
   512 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
   513 #endif
   514 
   515 #ifdef HAVE_ATOF
   516 #define SDL_atof        atof
   517 #else
   518 #define SDL_atof(X)     SDL_strtod(X, NULL)
   519 #endif
   520 
   521 #ifdef HAVE_STRCMP
   522 #define SDL_strcmp      strcmp
   523 #else
   524 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   525 #endif
   526 
   527 #ifdef HAVE_STRNCMP
   528 #define SDL_strncmp     strncmp
   529 #else
   530 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   531 #endif
   532 
   533 #ifdef HAVE_STRCASECMP
   534 #define SDL_strcasecmp  strcasecmp
   535 #elif defined(HAVE__STRICMP)
   536 #define SDL_strcasecmp  _stricmp
   537 #else
   538 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   539 #endif
   540 
   541 #ifdef HAVE_STRNCASECMP
   542 #define SDL_strncasecmp strncasecmp
   543 #elif defined(HAVE__STRNICMP)
   544 #define SDL_strncasecmp _strnicmp
   545 #else
   546 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen);
   547 #endif
   548 
   549 #ifdef HAVE_SSCANF
   550 #define SDL_sscanf      sscanf
   551 #else
   552 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
   553 #endif
   554 
   555 #ifdef HAVE_SNPRINTF
   556 #define SDL_snprintf    snprintf
   557 #else
   558 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
   559 #endif
   560 
   561 #ifdef HAVE_VSNPRINTF
   562 #define SDL_vsnprintf   vsnprintf
   563 #else
   564 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
   565 #endif
   566 
   567 /* The SDL implementation of iconv() returns these error codes */
   568 #define SDL_ICONV_ERROR		(size_t)-1
   569 #define SDL_ICONV_E2BIG		(size_t)-2
   570 #define SDL_ICONV_EILSEQ	(size_t)-3
   571 #define SDL_ICONV_EINVAL	(size_t)-4
   572 
   573 #ifdef HAVE_ICONV
   574 #define SDL_iconv_t     iconv_t
   575 #define SDL_iconv_open  iconv_open
   576 #define SDL_iconv_close iconv_close
   577 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
   578 #else
   579 typedef struct _SDL_iconv_t *SDL_iconv_t;
   580 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode);
   581 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   582 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
   583 #endif
   584 /* This function converts a string between encodings in one pass, returning a
   585    string that must be freed with SDL_free() or NULL on error.
   586 */
   587 extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft);
   588 #define SDL_iconv_utf8_ascii(S)		SDL_iconv_string("ASCII", "UTF-8", S, SDL_strlen(S)+1)
   589 #define SDL_iconv_utf8_latin1(S)	SDL_iconv_string("LATIN1", "UTF-8", S, SDL_strlen(S)+1)
   590 #define SDL_iconv_utf8_ucs2(S)		(Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
   591 #define SDL_iconv_utf8_ucs4(S)		(Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
   592 
   593 /* Ends C function definitions when using C++ */
   594 #ifdef __cplusplus
   595 }
   596 #endif
   597 #include "close_code.h"
   598 
   599 #endif /* _SDL_stdinc_h */