include/SDL_stdinc.h
author Ryan C. Gordon <icculus@icculus.org>
Sun, 24 Jun 2007 18:26:35 +0000
branchSDL-1.2
changeset 3975 e85e65aec22f
parent 3946 259aaca0fb0c
child 3976 8582c6a5ca16
permissions -rw-r--r--
Added S60 port.
     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 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   133 
   134 
   135 #include "begin_code.h"
   136 /* Set up for C function definitions, even when using C++ */
   137 #ifdef __cplusplus
   138 extern "C" {
   139 #endif
   140 
   141 #ifdef HAVE_MALLOC
   142 #define SDL_malloc	malloc
   143 #else
   144 extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);
   145 #endif
   146 
   147 #ifdef HAVE_CALLOC
   148 #define SDL_calloc	calloc
   149 #else
   150 extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);
   151 #endif
   152 
   153 #ifdef HAVE_REALLOC
   154 #define SDL_realloc	realloc
   155 #else
   156 extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);
   157 #endif
   158 
   159 #ifdef HAVE_FREE
   160 #define SDL_free	free
   161 #else
   162 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   163 #endif
   164 
   165 #if defined(HAVE_ALLOCA) && !defined(alloca)
   166 # if defined(HAVE_ALLOCA_H)
   167 #  include <alloca.h>
   168 # elif defined(__GNUC__)
   169 #  define alloca __builtin_alloca
   170 # elif defined(_MSC_VER)
   171 #  include <malloc.h>
   172 #  define alloca _alloca
   173 # elif defined(__WATCOMC__)
   174 #  include <malloc.h>
   175 # elif defined(__DMC__)
   176 #  include <stdlib.h>
   177 # elif defined(__AIX__)
   178   #pragma alloca
   179 # elif defined(__MRC__)
   180    void *alloca (unsigned);
   181 # else
   182    char *alloca ();
   183 # endif
   184 #endif
   185 #ifdef HAVE_ALLOCA
   186 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   187 #define SDL_stack_free(data)
   188 #else
   189 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   190 #define SDL_stack_free(data)            SDL_free(data)
   191 #endif
   192 
   193 #ifdef HAVE_GETENV
   194 #define SDL_getenv	getenv
   195 #else
   196 extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);
   197 #endif
   198 
   199 #ifdef HAVE_PUTENV
   200 #define SDL_putenv	putenv
   201 #else
   202 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
   203 #endif
   204 
   205 #ifdef HAVE_QSORT
   206 #define SDL_qsort	qsort
   207 #else
   208 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
   209            int (*compare)(const void *, const void *));
   210 #endif
   211 
   212 #ifdef HAVE_ABS
   213 #define SDL_abs		abs
   214 #else
   215 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))
   216 #endif
   217 
   218 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))
   219 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))
   220 
   221 #ifdef HAVE_CTYPE_H
   222 #define SDL_isdigit(X)  isdigit(X)
   223 #define SDL_isspace(X)  isspace(X)
   224 #define SDL_toupper(X)  toupper(X)
   225 #define SDL_tolower(X)  tolower(X)
   226 #else
   227 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))
   228 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
   229 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
   230 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
   231 #endif
   232 
   233 #ifdef HAVE_MEMSET
   234 #define SDL_memset      memset
   235 #else
   236 extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
   237 #endif
   238 
   239 /* We can count on memset existing on Mac OS X and being well-tuned. */
   240 #if defined(__MACH__) && defined(__APPLE__)
   241 #define SDL_memset4(dst, val, len) memset(dst, val, (len)*4)
   242 #elif defined(__GNUC__) && defined(i386)
   243 #define SDL_memset4(dst, val, len)				\
   244 do {								\
   245 	int u0, u1, u2;						\
   246 	__asm__ __volatile__ (					\
   247 		"cld\n\t"					\
   248 		"rep ; stosl\n\t"				\
   249 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\
   250 		: "0" (dst), "1" (val), "2" ((Uint32)(len))	\
   251 		: "memory" );					\
   252 } while(0)
   253 #endif
   254 #ifndef SDL_memset4
   255 #define SDL_memset4(dst, val, len)		\
   256 do {						\
   257 	unsigned _count = (len);		\
   258 	unsigned _n = (_count + 3) / 4;		\
   259 	Uint32 *_p = (Uint32 *)(dst);		\
   260 	Uint32 _val = (val);			\
   261         switch (_count % 4) {			\
   262         case 0: do {    *_p++ = _val;		\
   263         case 3:         *_p++ = _val;		\
   264         case 2:         *_p++ = _val;		\
   265         case 1:         *_p++ = _val;		\
   266 		} while ( --_n );		\
   267 	}					\
   268 } while(0)
   269 #endif
   270 
   271 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   272 #if defined(__MACH__) && defined(__APPLE__)
   273 #define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
   274 #elif defined(__GNUC__) && defined(i386)
   275 #define SDL_memcpy(dst, src, len)					  \
   276 do {									  \
   277 	int u0, u1, u2;						  	  \
   278 	__asm__ __volatile__ (						  \
   279 		"cld\n\t"						  \
   280 		"rep ; movsl\n\t"					  \
   281 		"testb $2,%b4\n\t"					  \
   282 		"je 1f\n\t"						  \
   283 		"movsw\n"						  \
   284 		"1:\ttestb $1,%b4\n\t"					  \
   285 		"je 2f\n\t"						  \
   286 		"movsb\n"						  \
   287 		"2:"							  \
   288 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \
   289 		: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
   290 		: "memory" );						  \
   291 } while(0)
   292 #endif
   293 #ifndef SDL_memcpy
   294 #ifdef HAVE_MEMCPY
   295 #define SDL_memcpy      memcpy
   296 #elif defined(HAVE_BCOPY)
   297 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))
   298 #else
   299 extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
   300 #endif
   301 #endif
   302 
   303 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   304 #if defined(__MACH__) && defined(__APPLE__)
   305 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
   306 #elif defined(__GNUC__) && defined(i386)
   307 #define SDL_memcpy4(dst, src, len)				\
   308 do {								\
   309 	int ecx, edi, esi;					\
   310 	__asm__ __volatile__ (					\
   311 		"cld\n\t"					\
   312 		"rep ; movsl"					\
   313 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\
   314 		: "0" ((unsigned)(len)), "1" (dst), "2" (src)	\
   315 		: "memory" );					\
   316 } while(0)
   317 #endif
   318 #ifndef SDL_memcpy4
   319 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)
   320 #endif
   321 
   322 #if defined(__GNUC__) && defined(i386)
   323 #define SDL_revcpy(dst, src, len)			\
   324 do {							\
   325 	int u0, u1, u2;					\
   326 	char *dstp = (char *)(dst);			\
   327 	char *srcp = (char *)(src);			\
   328 	int n = (len);					\
   329 	if ( n >= 4 ) {					\
   330 	__asm__ __volatile__ (				\
   331 		"std\n\t"				\
   332 		"rep ; movsl\n\t"			\
   333 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\
   334 		: "0" (n >> 2),				\
   335 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\
   336 		: "memory" );				\
   337 	}						\
   338 	switch (n & 3) {				\
   339 		case 3: dstp[2] = srcp[2];		\
   340 		case 2: dstp[1] = srcp[1];		\
   341 		case 1: dstp[0] = srcp[0];		\
   342 			break;				\
   343 		default:				\
   344 			break;				\
   345 	}						\
   346 } while(0)
   347 #endif
   348 #ifndef SDL_revcpy
   349 extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
   350 #endif
   351 
   352 #ifdef HAVE_MEMMOVE
   353 #define SDL_memmove     memmove
   354 #elif defined(HAVE_BCOPY)
   355 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))
   356 #else
   357 #define SDL_memmove(dst, src, len)			\
   358 do {							\
   359 	if ( dst < src ) {				\
   360 		SDL_memcpy(dst, src, len);		\
   361 	} else {					\
   362 		SDL_revcpy(dst, src, len);		\
   363 	}						\
   364 } while(0)
   365 #endif
   366 
   367 #ifdef HAVE_MEMCMP
   368 #define SDL_memcmp      memcmp
   369 #else
   370 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   371 #endif
   372 
   373 #ifdef HAVE_STRLEN
   374 #define SDL_strlen      strlen
   375 #else
   376 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
   377 #endif
   378 
   379 #ifdef HAVE_STRLCPY
   380 #define SDL_strlcpy     strlcpy
   381 #else
   382 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);
   383 #endif
   384 
   385 #ifdef HAVE_STRLCAT
   386 #define SDL_strlcat    strlcat
   387 #else
   388 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);
   389 #endif
   390 
   391 #ifdef HAVE_STRDUP
   392 #define SDL_strdup     strdup
   393 #else
   394 extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
   395 #endif
   396 
   397 #ifdef HAVE__STRREV
   398 #define SDL_strrev      _strrev
   399 #else
   400 extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
   401 #endif
   402 
   403 #ifdef HAVE__STRUPR
   404 #define SDL_strupr      _strupr
   405 #else
   406 extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
   407 #endif
   408 
   409 #ifdef HAVE__STRLWR
   410 #define SDL_strlwr      _strlwr
   411 #else
   412 extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
   413 #endif
   414 
   415 #ifdef HAVE_STRCHR
   416 #define SDL_strchr      strchr
   417 #elif defined(HAVE_INDEX)
   418 #define SDL_strchr      index
   419 #else
   420 extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
   421 #endif
   422 
   423 #ifdef HAVE_STRRCHR
   424 #define SDL_strrchr     strrchr
   425 #elif defined(HAVE_RINDEX)
   426 #define SDL_strrchr     rindex
   427 #else
   428 extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
   429 #endif
   430 
   431 #ifdef HAVE_STRSTR
   432 #define SDL_strstr      strstr
   433 #else
   434 extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
   435 #endif
   436 
   437 #ifdef HAVE_ITOA
   438 #define SDL_itoa        itoa
   439 #else
   440 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
   441 #endif
   442 
   443 #ifdef HAVE__LTOA
   444 #define SDL_ltoa        _ltoa
   445 #else
   446 extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
   447 #endif
   448 
   449 #ifdef HAVE__UITOA
   450 #define SDL_uitoa       _uitoa
   451 #else
   452 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
   453 #endif
   454 
   455 #ifdef HAVE__ULTOA
   456 #define SDL_ultoa       _ultoa
   457 #else
   458 extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
   459 #endif
   460 
   461 #ifdef HAVE_STRTOL
   462 #define SDL_strtol      strtol
   463 #else
   464 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
   465 #endif
   466 
   467 #ifdef HAVE_STRTOUL
   468 #define SDL_strtoul      strtoul
   469 #else
   470 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base);
   471 #endif
   472 
   473 #ifdef SDL_HAS_64BIT_TYPE
   474 
   475 #ifdef HAVE__I64TOA
   476 #define SDL_lltoa       _i64toa
   477 #else
   478 extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
   479 #endif
   480 
   481 #ifdef HAVE__UI64TOA
   482 #define SDL_ulltoa      _ui64toa
   483 #else
   484 extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
   485 #endif
   486 
   487 #ifdef HAVE_STRTOLL
   488 #define SDL_strtoll     strtoll
   489 #else
   490 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
   491 #endif
   492 
   493 #ifdef HAVE_STRTOULL
   494 #define SDL_strtoull     strtoull
   495 #else
   496 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base);
   497 #endif
   498 
   499 #endif /* SDL_HAS_64BIT_TYPE */
   500 
   501 #ifdef HAVE_STRTOD
   502 #define SDL_strtod      strtod
   503 #else
   504 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
   505 #endif
   506 
   507 #ifdef HAVE_ATOI
   508 #define SDL_atoi        atoi
   509 #else
   510 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
   511 #endif
   512 
   513 #ifdef HAVE_ATOF
   514 #define SDL_atof        atof
   515 #else
   516 #define SDL_atof(X)     SDL_strtod(X, NULL)
   517 #endif
   518 
   519 #ifdef HAVE_STRCMP
   520 #define SDL_strcmp      strcmp
   521 #else
   522 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   523 #endif
   524 
   525 #ifdef HAVE_STRNCMP
   526 #define SDL_strncmp     strncmp
   527 #else
   528 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   529 #endif
   530 
   531 #ifdef HAVE_STRCASECMP
   532 #define SDL_strcasecmp  strcasecmp
   533 #elif defined(HAVE__STRICMP)
   534 #define SDL_strcasecmp  _stricmp
   535 #else
   536 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   537 #endif
   538 
   539 #ifdef HAVE_STRNCASECMP
   540 #define SDL_strncasecmp strncasecmp
   541 #elif defined(HAVE__STRNICMP)
   542 #define SDL_strncasecmp _strnicmp
   543 #else
   544 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen);
   545 #endif
   546 
   547 #ifdef HAVE_SSCANF
   548 #define SDL_sscanf      sscanf
   549 #else
   550 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
   551 #endif
   552 
   553 #ifdef HAVE_SNPRINTF
   554 #define SDL_snprintf    snprintf
   555 #else
   556 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
   557 #endif
   558 
   559 #ifdef HAVE_VSNPRINTF
   560 #define SDL_vsnprintf   vsnprintf
   561 #else
   562 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
   563 #endif
   564 
   565 /* The SDL implementation of iconv() returns these error codes */
   566 #define SDL_ICONV_ERROR		(size_t)-1
   567 #define SDL_ICONV_E2BIG		(size_t)-2
   568 #define SDL_ICONV_EILSEQ	(size_t)-3
   569 #define SDL_ICONV_EINVAL	(size_t)-4
   570 
   571 #ifdef HAVE_ICONV
   572 #define SDL_iconv_t     iconv_t
   573 #define SDL_iconv_open  iconv_open
   574 #define SDL_iconv_close iconv_close
   575 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
   576 #else
   577 typedef struct _SDL_iconv_t *SDL_iconv_t;
   578 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode);
   579 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   580 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
   581 #endif
   582 /* This function converts a string between encodings in one pass, returning a
   583    string that must be freed with SDL_free() or NULL on error.
   584 */
   585 extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft);
   586 #define SDL_iconv_utf8_ascii(S)		SDL_iconv_string("ASCII", "UTF-8", S, SDL_strlen(S)+1)
   587 #define SDL_iconv_utf8_latin1(S)	SDL_iconv_string("LATIN1", "UTF-8", S, SDL_strlen(S)+1)
   588 #define SDL_iconv_utf8_ucs2(S)		(Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
   589 #define SDL_iconv_utf8_ucs4(S)		(Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
   590 
   591 /* Ends C function definitions when using C++ */
   592 #ifdef __cplusplus
   593 }
   594 #endif
   595 #include "close_code.h"
   596 
   597 #endif /* _SDL_stdinc_h */