include/SDL_stdinc.h
author Holmes Futrell <hfutrell@umail.ucsb.edu>
Sun, 22 Jun 2008 23:13:02 +0000
changeset 2706 ce3ddf8dd6d2
parent 2302 7ae1c419b626
child 2707 6259afb046c5
permissions -rw-r--r--
disabled compile time assertion ... no 64 bit primitive types available on iPhone (it appears)
     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 /**
    24  * \file SDL_stdinc.h
    25  *
    26  * This is a general header that includes C language support
    27  */
    28 
    29 #ifndef _SDL_stdinc_h
    30 #define _SDL_stdinc_h
    31 
    32 #include "SDL_config.h"
    33 
    34 
    35 #ifdef HAVE_SYS_TYPES_H
    36 #include <sys/types.h>
    37 #endif
    38 #ifdef HAVE_STDIO_H
    39 #include <stdio.h>
    40 #endif
    41 #if defined(STDC_HEADERS)
    42 # include <stdlib.h>
    43 # include <stddef.h>
    44 # include <stdarg.h>
    45 #else
    46 # if defined(HAVE_STDLIB_H)
    47 #  include <stdlib.h>
    48 # elif defined(HAVE_MALLOC_H)
    49 #  include <malloc.h>
    50 # endif
    51 # if defined(HAVE_STDDEF_H)
    52 #  include <stddef.h>
    53 # endif
    54 # if defined(HAVE_STDARG_H)
    55 #  include <stdarg.h>
    56 # endif
    57 #endif
    58 #ifdef HAVE_STRING_H
    59 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
    60 #  include <memory.h>
    61 # endif
    62 # include <string.h>
    63 #endif
    64 #ifdef HAVE_STRINGS_H
    65 # include <strings.h>
    66 #endif
    67 #if defined(HAVE_INTTYPES_H)
    68 # include <inttypes.h>
    69 #elif defined(HAVE_STDINT_H)
    70 # include <stdint.h>
    71 #endif
    72 #ifdef HAVE_CTYPE_H
    73 # include <ctype.h>
    74 #endif
    75 #ifdef HAVE_ICONV_H
    76 # include <iconv.h>
    77 #endif
    78 
    79 /* The number of elements in an array */
    80 #define SDL_arraysize(array)	(sizeof(array)/sizeof(array[0]))
    81 #define SDL_TABLESIZE(table)	SDL_arraysize(table)
    82 
    83 /* Basic data types */
    84 typedef enum SDL_bool
    85 {
    86     SDL_FALSE = 0,
    87     SDL_TRUE = 1
    88 } SDL_bool;
    89 
    90 /**
    91  * \typedef Sint8
    92  * \brief A signed 8-bit integer type.
    93  */
    94 typedef int8_t Sint8;
    95 /**
    96  * \typedef Uint8
    97  * \brief An unsigned 8-bit integer type.
    98  */
    99 typedef uint8_t Uint8;
   100 /**
   101  * \typedef Sint16
   102  * \brief A signed 16-bit integer type.
   103  */
   104 typedef int16_t Sint16;
   105 /**
   106  * \typedef Uint16
   107  * \brief An unsigned 16-bit integer type.
   108  */
   109 typedef uint16_t Uint16;
   110 /**
   111  * \typedef Sint32
   112  * \brief A signed 32-bit integer type.
   113  */
   114 typedef int32_t Sint32;
   115 /**
   116  * \typedef Uint32
   117  * \brief An unsigned 32-bit integer type.
   118  */
   119 typedef uint32_t Uint32;
   120 
   121 #ifdef SDL_HAS_64BIT_TYPE
   122 /**
   123  * \typedef Sint64
   124  * \brief A signed 64-bit integer type.
   125  * \warning On platforms without any sort of 64-bit datatype, this is equivalent to Sint32!
   126  */
   127 typedef int64_t Sint64;
   128 /**
   129  * \typedef Uint64
   130  * \brief An unsigned 64-bit integer type.
   131  * \warning On platforms without any sort of 64-bit datatype, this is equivalent to Uint32!
   132  */
   133 typedef uint64_t Uint64;
   134 #else
   135 /* This is really just a hack to prevent the compiler from complaining */
   136 typedef Sint32 Sint64;
   137 typedef Uint32 Uint64;
   138 #endif
   139 
   140 /* Make sure the types really have the right sizes */
   141 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   142        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   143 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   144 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   145 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   146 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   147 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   148 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   149 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   150 
   151 // SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   152 // SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   153 
   154 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   155 
   156 /* Check to make sure enums are the size of ints, for structure packing.
   157    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   158    enums having the size of an int must be enabled.
   159    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   160 */
   161 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   162 #ifdef __MWERKS__
   163 #pragma enumsalwaysint on
   164 #endif
   165 
   166 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   167 typedef enum
   168 {
   169     DUMMY_ENUM_VALUE
   170 } SDL_DUMMY_ENUM;
   171 
   172 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   173 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   174 
   175 #include "begin_code.h"
   176 /* Set up for C function definitions, even when using C++ */
   177 #ifdef __cplusplus
   178 /* *INDENT-OFF* */
   179 extern "C" {
   180 /* *INDENT-ON* */
   181 #endif
   182 
   183 #ifdef HAVE_MALLOC
   184 #define SDL_malloc	malloc
   185 #else
   186 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   187 #endif
   188 
   189 #ifdef HAVE_CALLOC
   190 #define SDL_calloc	calloc
   191 #else
   192 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   193 #endif
   194 
   195 #ifdef HAVE_REALLOC
   196 #define SDL_realloc	realloc
   197 #else
   198 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   199 #endif
   200 
   201 #ifdef HAVE_FREE
   202 #define SDL_free	free
   203 #else
   204 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   205 #endif
   206 
   207 #if defined(HAVE_ALLOCA) && !defined(alloca)
   208 # if defined(HAVE_ALLOCA_H)
   209 #  include <alloca.h>
   210 # elif defined(__GNUC__)
   211 #  define alloca __builtin_alloca
   212 # elif defined(_MSC_VER)
   213 #  include <malloc.h>
   214 #  define alloca _alloca
   215 # elif defined(__WATCOMC__)
   216 #  include <malloc.h>
   217 # elif defined(__BORLANDC__)
   218 #  include <malloc.h>
   219 # elif defined(__DMC__)
   220 #  include <stdlib.h>
   221 # elif defined(__AIX__)
   222 #pragma alloca
   223 # elif defined(__MRC__)
   224 void *alloca(unsigned);
   225 # else
   226 char *alloca();
   227 # endif
   228 #endif
   229 #ifdef HAVE_ALLOCA
   230 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   231 #define SDL_stack_free(data)
   232 #else
   233 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   234 #define SDL_stack_free(data)            SDL_free(data)
   235 #endif
   236 
   237 #ifdef HAVE_GETENV
   238 #define SDL_getenv	getenv
   239 #else
   240 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   241 #endif
   242 
   243 #ifdef HAVE_PUTENV
   244 #define SDL_putenv	putenv
   245 #else
   246 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
   247 #endif
   248 
   249 #ifdef HAVE_QSORT
   250 #define SDL_qsort	qsort
   251 #else
   252 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
   253                                        int (*compare) (const void *,
   254                                                        const void *));
   255 #endif
   256 
   257 #ifdef HAVE_ABS
   258 #define SDL_abs		abs
   259 #else
   260 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))
   261 #endif
   262 
   263 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))
   264 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))
   265 
   266 #ifdef HAVE_CTYPE_H
   267 #define SDL_isdigit(X)  isdigit(X)
   268 #define SDL_isspace(X)  isspace(X)
   269 #define SDL_toupper(X)  toupper(X)
   270 #define SDL_tolower(X)  tolower(X)
   271 #else
   272 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))
   273 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
   274 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
   275 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
   276 #endif
   277 
   278 #ifdef HAVE_MEMSET
   279 #define SDL_memset      memset
   280 #else
   281 extern DECLSPEC void *SDLCALL SDL_memset(void *dst, int c, size_t len);
   282 #endif
   283 #define SDL_zero(x)	SDL_memset(&(x), 0, sizeof((x)))
   284 #define SDL_zerop(x)	SDL_memset((x), 0, sizeof(*(x)))
   285 
   286 #if defined(__GNUC__) && defined(i386)
   287 #define SDL_memset4(dst, val, len)				\
   288 do {								\
   289 	int u0, u1, u2;						\
   290 	__asm__ __volatile__ (					\
   291 		"cld\n\t"					\
   292 		"rep ; stosl\n\t"				\
   293 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\
   294 		: "0" (dst), "1" (val), "2" ((Uint32)(len))	\
   295 		: "memory" );					\
   296 } while(0)
   297 #endif
   298 #ifndef SDL_memset4
   299 #define SDL_memset4(dst, val, len)		\
   300 do {						\
   301 	unsigned _count = (len);		\
   302 	unsigned _n = (_count + 3) / 4;		\
   303 	Uint32 *_p = (Uint32 *)(dst);		\
   304 	Uint32 _val = (val);			\
   305         switch (_count % 4) {			\
   306         case 0: do {    *_p++ = _val;		\
   307         case 3:         *_p++ = _val;		\
   308         case 2:         *_p++ = _val;		\
   309         case 1:         *_p++ = _val;		\
   310 		} while ( --_n );		\
   311 	}					\
   312 } while(0)
   313 #endif
   314 
   315 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   316 #if defined(__MACH__) && defined(__APPLE__)
   317 #define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
   318 #elif defined(__GNUC__) && defined(i386)
   319 #define SDL_memcpy(dst, src, len)					  \
   320 do {									  \
   321 	int u0, u1, u2;						  	  \
   322 	__asm__ __volatile__ (						  \
   323 		"cld\n\t"						  \
   324 		"rep ; movsl\n\t"					  \
   325 		"testb $2,%b4\n\t"					  \
   326 		"je 1f\n\t"						  \
   327 		"movsw\n"						  \
   328 		"1:\ttestb $1,%b4\n\t"					  \
   329 		"je 2f\n\t"						  \
   330 		"movsb\n"						  \
   331 		"2:"							  \
   332 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \
   333 		: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
   334 		: "memory" );						  \
   335 } while(0)
   336 #endif
   337 #ifndef SDL_memcpy
   338 #ifdef HAVE_MEMCPY
   339 #define SDL_memcpy      memcpy
   340 #elif defined(HAVE_BCOPY)
   341 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))
   342 #else
   343 extern DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src,
   344                                          size_t len);
   345 #endif
   346 #endif
   347 
   348 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   349 #if defined(__MACH__) && defined(__APPLE__)
   350 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
   351 #elif defined(__GNUC__) && defined(i386)
   352 #define SDL_memcpy4(dst, src, len)				\
   353 do {								\
   354 	int ecx, edi, esi;					\
   355 	__asm__ __volatile__ (					\
   356 		"cld\n\t"					\
   357 		"rep ; movsl"					\
   358 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\
   359 		: "0" ((unsigned)(len)), "1" (dst), "2" (src)	\
   360 		: "memory" );					\
   361 } while(0)
   362 #endif
   363 #ifndef SDL_memcpy4
   364 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)
   365 #endif
   366 
   367 #if defined(__GNUC__) && defined(i386)
   368 #define SDL_revcpy(dst, src, len)			\
   369 do {							\
   370 	int u0, u1, u2;					\
   371 	char *dstp = (char *)(dst);			\
   372 	char *srcp = (char *)(src);			\
   373 	int n = (len);					\
   374 	if ( n >= 4 ) {					\
   375 	__asm__ __volatile__ (				\
   376 		"std\n\t"				\
   377 		"rep ; movsl\n\t"			\
   378 		"cld\n\t"				\
   379 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\
   380 		: "0" (n >> 2),				\
   381 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\
   382 		: "memory" );				\
   383 	}						\
   384 	switch (n & 3) {				\
   385 		case 3: dstp[2] = srcp[2];		\
   386 		case 2: dstp[1] = srcp[1];		\
   387 		case 1: dstp[0] = srcp[0];		\
   388 			break;				\
   389 		default:				\
   390 			break;				\
   391 	}						\
   392 } while(0)
   393 #endif
   394 	
   395 #ifndef SDL_revcpy
   396 extern DECLSPEC void *SDLCALL SDL_revcpy(void *dst, const void *src,
   397                                          size_t len);
   398 #endif
   399 
   400 #ifdef HAVE_MEMMOVE
   401 #define SDL_memmove     memmove
   402 #elif defined(HAVE_BCOPY)
   403 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))
   404 #else
   405 #define SDL_memmove(dst, src, len)			\
   406 do {							\
   407 	if ( dst < src ) {				\
   408 		SDL_memcpy(dst, src, len);		\
   409 	} else {					\
   410 		SDL_revcpy(dst, src, len);		\
   411 	}						\
   412 } while(0)
   413 #endif
   414 
   415 #ifdef HAVE_MEMCMP
   416 #define SDL_memcmp      memcmp
   417 #else
   418 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2,
   419                                        size_t len);
   420 #endif
   421 
   422 #ifdef HAVE_STRLEN
   423 #define SDL_strlen      strlen
   424 #else
   425 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
   426 #endif
   427 
   428 #ifdef HAVE_WCSLEN
   429 #define SDL_wcslen      wcslen
   430 #else
   431 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t * string);
   432 #endif
   433 
   434 #ifdef HAVE_STRLCPY
   435 #define SDL_strlcpy     strlcpy
   436 #else
   437 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src,
   438                                            size_t maxlen);
   439 #endif
   440 
   441 #ifdef HAVE_STRLCAT
   442 #define SDL_strlcat    strlcat
   443 #else
   444 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src,
   445                                            size_t maxlen);
   446 #endif
   447 
   448 #ifdef HAVE_STRDUP
   449 #define SDL_strdup     strdup
   450 #else
   451 extern DECLSPEC char *SDLCALL SDL_strdup(const char *string);
   452 #endif
   453 
   454 #ifdef HAVE__STRREV
   455 #define SDL_strrev      _strrev
   456 #else
   457 extern DECLSPEC char *SDLCALL SDL_strrev(char *string);
   458 #endif
   459 
   460 #ifdef HAVE__STRUPR
   461 #define SDL_strupr      _strupr
   462 #else
   463 extern DECLSPEC char *SDLCALL SDL_strupr(char *string);
   464 #endif
   465 
   466 #ifdef HAVE__STRLWR
   467 #define SDL_strlwr      _strlwr
   468 #else
   469 extern DECLSPEC char *SDLCALL SDL_strlwr(char *string);
   470 #endif
   471 
   472 #ifdef HAVE_STRCHR
   473 #define SDL_strchr      strchr
   474 #elif defined(HAVE_INDEX)
   475 #define SDL_strchr      index
   476 #else
   477 extern DECLSPEC char *SDLCALL SDL_strchr(const char *string, int c);
   478 #endif
   479 
   480 #ifdef HAVE_STRRCHR
   481 #define SDL_strrchr     strrchr
   482 #elif defined(HAVE_RINDEX)
   483 #define SDL_strrchr     rindex
   484 #else
   485 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *string, int c);
   486 #endif
   487 
   488 #ifdef HAVE_STRSTR
   489 #define SDL_strstr      strstr
   490 #else
   491 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack,
   492                                          const char *needle);
   493 #endif
   494 
   495 #ifdef HAVE_ITOA
   496 #define SDL_itoa        itoa
   497 #else
   498 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
   499 #endif
   500 
   501 #ifdef HAVE__LTOA
   502 #define SDL_ltoa        _ltoa
   503 #else
   504 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *string, int radix);
   505 #endif
   506 
   507 #ifdef HAVE__UITOA
   508 #define SDL_uitoa       _uitoa
   509 #else
   510 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
   511 #endif
   512 
   513 #ifdef HAVE__ULTOA
   514 #define SDL_ultoa       _ultoa
   515 #else
   516 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *string,
   517                                         int radix);
   518 #endif
   519 
   520 #ifdef HAVE_STRTOL
   521 #define SDL_strtol      strtol
   522 #else
   523 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp,
   524                                         int base);
   525 #endif
   526 
   527 #ifdef HAVE_STRTOUL
   528 #define SDL_strtoul      strtoul
   529 #else
   530 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string,
   531                                                   char **endp, int base);
   532 #endif
   533 
   534 #ifdef SDL_HAS_64BIT_TYPE
   535 
   536 #ifdef HAVE__I64TOA
   537 #define SDL_lltoa       _i64toa
   538 #else
   539 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *string,
   540                                         int radix);
   541 #endif
   542 
   543 #ifdef HAVE__UI64TOA
   544 #define SDL_ulltoa      _ui64toa
   545 #else
   546 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *string,
   547                                          int radix);
   548 #endif
   549 
   550 #ifdef HAVE_STRTOLL
   551 #define SDL_strtoll     strtoll
   552 #else
   553 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp,
   554                                            int base);
   555 #endif
   556 
   557 #ifdef HAVE_STRTOULL
   558 #define SDL_strtoull     strtoull
   559 #else
   560 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp,
   561                                             int base);
   562 #endif
   563 
   564 #endif /* SDL_HAS_64BIT_TYPE */
   565 
   566 #ifdef HAVE_STRTOD
   567 #define SDL_strtod      strtod
   568 #else
   569 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
   570 #endif
   571 
   572 #ifdef HAVE_ATOI
   573 #define SDL_atoi        atoi
   574 #else
   575 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
   576 #endif
   577 
   578 #ifdef HAVE_ATOF
   579 #define SDL_atof        atof
   580 #else
   581 #define SDL_atof(X)     SDL_strtod(X, NULL)
   582 #endif
   583 
   584 #ifdef HAVE_STRCMP
   585 #define SDL_strcmp      strcmp
   586 #else
   587 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   588 #endif
   589 
   590 #ifdef HAVE_STRNCMP
   591 #define SDL_strncmp     strncmp
   592 #else
   593 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2,
   594                                         size_t maxlen);
   595 #endif
   596 
   597 #ifdef HAVE_STRCASECMP
   598 #define SDL_strcasecmp  strcasecmp
   599 #elif defined(HAVE__STRICMP)
   600 #define SDL_strcasecmp  _stricmp
   601 #else
   602 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1,
   603                                            const char *str2);
   604 #endif
   605 
   606 #ifdef HAVE_STRNCASECMP
   607 #define SDL_strncasecmp strncasecmp
   608 #elif defined(HAVE__STRNICMP)
   609 #define SDL_strncasecmp _strnicmp
   610 #else
   611 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1,
   612                                             const char *str2, size_t maxlen);
   613 #endif
   614 
   615 #ifdef HAVE_SSCANF
   616 #define SDL_sscanf      sscanf
   617 #else
   618 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt,
   619                                        ...);
   620 #endif
   621 
   622 #ifdef HAVE_SNPRINTF
   623 #define SDL_snprintf    snprintf
   624 #else
   625 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen,
   626                                          const char *fmt, ...);
   627 #endif
   628 
   629 #ifdef HAVE_VSNPRINTF
   630 #define SDL_vsnprintf   vsnprintf
   631 #else
   632 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen,
   633                                           const char *fmt, va_list ap);
   634 #endif
   635 
   636 /* The SDL implementation of iconv() returns these error codes */
   637 #define SDL_ICONV_ERROR		(size_t)-1
   638 #define SDL_ICONV_E2BIG		(size_t)-2
   639 #define SDL_ICONV_EILSEQ	(size_t)-3
   640 #define SDL_ICONV_EINVAL	(size_t)-4
   641 
   642 #ifdef HAVE_ICONV
   643 #define SDL_iconv_t     iconv_t
   644 #define SDL_iconv_open  iconv_open
   645 #define SDL_iconv_close iconv_close
   646 #else
   647 typedef struct _SDL_iconv_t *SDL_iconv_t;
   648 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   649                                                    const char *fromcode);
   650 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   651 #endif
   652 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   653                                          size_t * inbytesleft, char **outbuf,
   654                                          size_t * outbytesleft);
   655 /* This function converts a string between encodings in one pass, returning a
   656    string that must be freed with SDL_free() or NULL on error.
   657 */
   658 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   659                                                const char *fromcode,
   660                                                const char *inbuf,
   661                                                size_t inbytesleft);
   662 #define SDL_iconv_utf8_locale(S)	SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   663 #define SDL_iconv_utf8_ucs2(S)		(Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
   664 #define SDL_iconv_utf8_ucs4(S)		(Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
   665 
   666 /* Ends C function definitions when using C++ */
   667 #ifdef __cplusplus
   668 /* *INDENT-OFF* */
   669 }
   670 /* *INDENT-ON* */
   671 #endif
   672 #include "close_code.h"
   673 
   674 #endif /* _SDL_stdinc_h */
   675 
   676 /* vi: set ts=4 sw=4 expandtab: */