include/SDL_stdinc.h
author Darren Alton <dalton@stevens.edu>
Thu, 12 Jun 2008 02:38:49 +0000
branchgsoc2008_nds
changeset 2671 c3e7c0698cbb
parent 2669 e27bdcc80744
permissions -rw-r--r--
some changes to the dummy driver for debug purposes that should be reverted.
most importantly, commenting out a check for an env. var.
     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 #ifndef __NINTENDODS__          /* TODO: figure out why the following happens:
   151                                    include/SDL_stdinc.h:150: error: size of array 'SDL_dummy_uint64' is negative
   152                                    include/SDL_stdinc.h:151: error: size of array 'SDL_dummy_sint64' is negative */
   153 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   154 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   155 #endif
   156 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   157 
   158 /* Check to make sure enums are the size of ints, for structure packing.
   159    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   160    enums having the size of an int must be enabled.
   161    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   162 */
   163 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   164 #ifdef __MWERKS__
   165 #pragma enumsalwaysint on
   166 #endif
   167 
   168 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   169 #ifndef __NINTENDODS__          /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   170 typedef enum
   171 {
   172     DUMMY_ENUM_VALUE
   173 } SDL_DUMMY_ENUM;
   174 
   175 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   176 #endif
   177 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   178 
   179 #include "begin_code.h"
   180 /* Set up for C function definitions, even when using C++ */
   181 #ifdef __cplusplus
   182 /* *INDENT-OFF* */
   183 extern "C" {
   184 /* *INDENT-ON* */
   185 #endif
   186 
   187 #ifdef HAVE_MALLOC
   188 #define SDL_malloc	malloc
   189 #else
   190 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   191 #endif
   192 
   193 #ifdef HAVE_CALLOC
   194 #define SDL_calloc	calloc
   195 #else
   196 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   197 #endif
   198 
   199 #ifdef HAVE_REALLOC
   200 #define SDL_realloc	realloc
   201 #else
   202 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   203 #endif
   204 
   205 #ifdef HAVE_FREE
   206 #define SDL_free	free
   207 #else
   208 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   209 #endif
   210 
   211 #if defined(HAVE_ALLOCA) && !defined(alloca)
   212 # if defined(HAVE_ALLOCA_H)
   213 #  include <alloca.h>
   214 # elif defined(__GNUC__)
   215 #  define alloca __builtin_alloca
   216 # elif defined(_MSC_VER)
   217 #  include <malloc.h>
   218 #  define alloca _alloca
   219 # elif defined(__WATCOMC__)
   220 #  include <malloc.h>
   221 # elif defined(__BORLANDC__)
   222 #  include <malloc.h>
   223 # elif defined(__DMC__)
   224 #  include <stdlib.h>
   225 # elif defined(__AIX__)
   226 #pragma alloca
   227 # elif defined(__MRC__)
   228 void *alloca(unsigned);
   229 # else
   230 char *alloca();
   231 # endif
   232 #endif
   233 #ifdef HAVE_ALLOCA
   234 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   235 #define SDL_stack_free(data)
   236 #else
   237 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   238 #define SDL_stack_free(data)            SDL_free(data)
   239 #endif
   240 
   241 #ifdef HAVE_GETENV
   242 #define SDL_getenv	getenv
   243 #else
   244 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   245 #endif
   246 
   247 #ifdef HAVE_PUTENV
   248 #define SDL_putenv	putenv
   249 #else
   250 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
   251 #endif
   252 
   253 #ifdef HAVE_QSORT
   254 #define SDL_qsort	qsort
   255 #else
   256 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
   257                                        int (*compare) (const void *,
   258                                                        const void *));
   259 #endif
   260 
   261 #ifdef HAVE_ABS
   262 #define SDL_abs		abs
   263 #else
   264 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))
   265 #endif
   266 
   267 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))
   268 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))
   269 
   270 #ifdef HAVE_CTYPE_H
   271 #define SDL_isdigit(X)  isdigit(X)
   272 #define SDL_isspace(X)  isspace(X)
   273 #define SDL_toupper(X)  toupper(X)
   274 #define SDL_tolower(X)  tolower(X)
   275 #else
   276 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))
   277 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
   278 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
   279 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
   280 #endif
   281 
   282 #ifdef HAVE_MEMSET
   283 #define SDL_memset      memset
   284 #else
   285 extern DECLSPEC void *SDLCALL SDL_memset(void *dst, int c, size_t len);
   286 #endif
   287 #define SDL_zero(x)	SDL_memset(&(x), 0, sizeof((x)))
   288 #define SDL_zerop(x)	SDL_memset((x), 0, sizeof(*(x)))
   289 
   290 #if defined(__GNUC__) && defined(i386)
   291 #define SDL_memset4(dst, val, len)				\
   292 do {								\
   293 	int u0, u1, u2;						\
   294 	__asm__ __volatile__ (					\
   295 		"cld\n\t"					\
   296 		"rep ; stosl\n\t"				\
   297 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\
   298 		: "0" (dst), "1" (val), "2" ((Uint32)(len))	\
   299 		: "memory" );					\
   300 } while(0)
   301 #endif
   302 #ifndef SDL_memset4
   303 #define SDL_memset4(dst, val, len)		\
   304 do {						\
   305 	unsigned _count = (len);		\
   306 	unsigned _n = (_count + 3) / 4;		\
   307 	Uint32 *_p = (Uint32 *)(dst);		\
   308 	Uint32 _val = (val);			\
   309         switch (_count % 4) {			\
   310         case 0: do {    *_p++ = _val;		\
   311         case 3:         *_p++ = _val;		\
   312         case 2:         *_p++ = _val;		\
   313         case 1:         *_p++ = _val;		\
   314 		} while ( --_n );		\
   315 	}					\
   316 } while(0)
   317 #endif
   318 
   319 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   320 #if defined(__MACH__) && defined(__APPLE__)
   321 #define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
   322 #elif defined(__GNUC__) && defined(i386)
   323 #define SDL_memcpy(dst, src, len)					  \
   324 do {									  \
   325 	int u0, u1, u2;						  	  \
   326 	__asm__ __volatile__ (						  \
   327 		"cld\n\t"						  \
   328 		"rep ; movsl\n\t"					  \
   329 		"testb $2,%b4\n\t"					  \
   330 		"je 1f\n\t"						  \
   331 		"movsw\n"						  \
   332 		"1:\ttestb $1,%b4\n\t"					  \
   333 		"je 2f\n\t"						  \
   334 		"movsb\n"						  \
   335 		"2:"							  \
   336 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \
   337 		: "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
   338 		: "memory" );						  \
   339 } while(0)
   340 #endif
   341 #ifndef SDL_memcpy
   342 #ifdef HAVE_MEMCPY
   343 #define SDL_memcpy      memcpy
   344 #elif defined(HAVE_BCOPY)
   345 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))
   346 #else
   347 extern DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src,
   348                                          size_t len);
   349 #endif
   350 #endif
   351 
   352 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   353 #if defined(__MACH__) && defined(__APPLE__)
   354 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
   355 #elif defined(__GNUC__) && defined(i386)
   356 #define SDL_memcpy4(dst, src, len)				\
   357 do {								\
   358 	int ecx, edi, esi;					\
   359 	__asm__ __volatile__ (					\
   360 		"cld\n\t"					\
   361 		"rep ; movsl"					\
   362 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\
   363 		: "0" ((unsigned)(len)), "1" (dst), "2" (src)	\
   364 		: "memory" );					\
   365 } while(0)
   366 #endif
   367 #ifndef SDL_memcpy4
   368 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)
   369 #endif
   370 
   371 #if defined(__GNUC__) && defined(i386)
   372 #define SDL_revcpy(dst, src, len)			\
   373 do {							\
   374 	int u0, u1, u2;					\
   375 	char *dstp = (char *)(dst);			\
   376 	char *srcp = (char *)(src);			\
   377 	int n = (len);					\
   378 	if ( n >= 4 ) {					\
   379 	__asm__ __volatile__ (				\
   380 		"std\n\t"				\
   381 		"rep ; movsl\n\t"			\
   382 		"cld\n\t"				\
   383 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\
   384 		: "0" (n >> 2),				\
   385 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\
   386 		: "memory" );				\
   387 	}						\
   388 	switch (n & 3) {				\
   389 		case 3: dstp[2] = srcp[2];		\
   390 		case 2: dstp[1] = srcp[1];		\
   391 		case 1: dstp[0] = srcp[0];		\
   392 			break;				\
   393 		default:				\
   394 			break;				\
   395 	}						\
   396 } while(0)
   397 #endif
   398 #ifndef SDL_revcpy
   399 extern DECLSPEC void *SDLCALL SDL_revcpy(void *dst, const void *src,
   400                                          size_t len);
   401 #endif
   402 
   403 #ifdef HAVE_MEMMOVE
   404 #define SDL_memmove     memmove
   405 #elif defined(HAVE_BCOPY)
   406 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))
   407 #else
   408 #define SDL_memmove(dst, src, len)			\
   409 do {							\
   410 	if ( dst < src ) {				\
   411 		SDL_memcpy(dst, src, len);		\
   412 	} else {					\
   413 		SDL_revcpy(dst, src, len);		\
   414 	}						\
   415 } while(0)
   416 #endif
   417 
   418 #ifdef HAVE_MEMCMP
   419 #define SDL_memcmp      memcmp
   420 #else
   421 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2,
   422                                        size_t len);
   423 #endif
   424 
   425 #ifdef HAVE_STRLEN
   426 #define SDL_strlen      strlen
   427 #else
   428 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
   429 #endif
   430 
   431 #ifdef HAVE_WCSLEN
   432 #define SDL_wcslen      wcslen
   433 #else
   434 #if !defined(wchar_t) && defined(__NINTENDODS__)
   435 #define wchar_t short           /* TODO: figure out why libnds doesn't have this */
   436 #endif
   437 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t * string);
   438 #endif
   439 
   440 #ifdef HAVE_STRLCPY
   441 #define SDL_strlcpy     strlcpy
   442 #else
   443 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src,
   444                                            size_t maxlen);
   445 #endif
   446 
   447 #ifdef HAVE_STRLCAT
   448 #define SDL_strlcat    strlcat
   449 #else
   450 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src,
   451                                            size_t maxlen);
   452 #endif
   453 
   454 #ifdef HAVE_STRDUP
   455 #define SDL_strdup     strdup
   456 #else
   457 extern DECLSPEC char *SDLCALL SDL_strdup(const char *string);
   458 #endif
   459 
   460 #ifdef HAVE__STRREV
   461 #define SDL_strrev      _strrev
   462 #else
   463 extern DECLSPEC char *SDLCALL SDL_strrev(char *string);
   464 #endif
   465 
   466 #ifdef HAVE__STRUPR
   467 #define SDL_strupr      _strupr
   468 #else
   469 extern DECLSPEC char *SDLCALL SDL_strupr(char *string);
   470 #endif
   471 
   472 #ifdef HAVE__STRLWR
   473 #define SDL_strlwr      _strlwr
   474 #else
   475 extern DECLSPEC char *SDLCALL SDL_strlwr(char *string);
   476 #endif
   477 
   478 #ifdef HAVE_STRCHR
   479 #define SDL_strchr      strchr
   480 #elif defined(HAVE_INDEX)
   481 #define SDL_strchr      index
   482 #else
   483 extern DECLSPEC char *SDLCALL SDL_strchr(const char *string, int c);
   484 #endif
   485 
   486 #ifdef HAVE_STRRCHR
   487 #define SDL_strrchr     strrchr
   488 #elif defined(HAVE_RINDEX)
   489 #define SDL_strrchr     rindex
   490 #else
   491 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *string, int c);
   492 #endif
   493 
   494 #ifdef HAVE_STRSTR
   495 #define SDL_strstr      strstr
   496 #else
   497 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack,
   498                                          const char *needle);
   499 #endif
   500 
   501 #ifdef HAVE_ITOA
   502 #define SDL_itoa        itoa
   503 #else
   504 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
   505 #endif
   506 
   507 #ifdef HAVE__LTOA
   508 #define SDL_ltoa        _ltoa
   509 #else
   510 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *string, int radix);
   511 #endif
   512 
   513 #ifdef HAVE__UITOA
   514 #define SDL_uitoa       _uitoa
   515 #else
   516 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
   517 #endif
   518 
   519 #ifdef HAVE__ULTOA
   520 #define SDL_ultoa       _ultoa
   521 #else
   522 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *string,
   523                                         int radix);
   524 #endif
   525 
   526 #ifdef HAVE_STRTOL
   527 #define SDL_strtol      strtol
   528 #else
   529 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp,
   530                                         int base);
   531 #endif
   532 
   533 #ifdef HAVE_STRTOUL
   534 #define SDL_strtoul      strtoul
   535 #else
   536 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string,
   537                                                   char **endp, int base);
   538 #endif
   539 
   540 #ifdef SDL_HAS_64BIT_TYPE
   541 
   542 #ifdef HAVE__I64TOA
   543 #define SDL_lltoa       _i64toa
   544 #else
   545 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *string,
   546                                         int radix);
   547 #endif
   548 
   549 #ifdef HAVE__UI64TOA
   550 #define SDL_ulltoa      _ui64toa
   551 #else
   552 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *string,
   553                                          int radix);
   554 #endif
   555 
   556 #ifdef HAVE_STRTOLL
   557 #define SDL_strtoll     strtoll
   558 #else
   559 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp,
   560                                            int base);
   561 #endif
   562 
   563 #ifdef HAVE_STRTOULL
   564 #define SDL_strtoull     strtoull
   565 #else
   566 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp,
   567                                             int base);
   568 #endif
   569 
   570 #endif /* SDL_HAS_64BIT_TYPE */
   571 
   572 #ifdef HAVE_STRTOD
   573 #define SDL_strtod      strtod
   574 #else
   575 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
   576 #endif
   577 
   578 #ifdef HAVE_ATOI
   579 #define SDL_atoi        atoi
   580 #else
   581 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
   582 #endif
   583 
   584 #ifdef HAVE_ATOF
   585 #define SDL_atof        atof
   586 #else
   587 #define SDL_atof(X)     SDL_strtod(X, NULL)
   588 #endif
   589 
   590 #ifdef HAVE_STRCMP
   591 #define SDL_strcmp      strcmp
   592 #else
   593 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   594 #endif
   595 
   596 #ifdef HAVE_STRNCMP
   597 #define SDL_strncmp     strncmp
   598 #else
   599 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2,
   600                                         size_t maxlen);
   601 #endif
   602 
   603 #ifdef HAVE_STRCASECMP
   604 #define SDL_strcasecmp  strcasecmp
   605 #elif defined(HAVE__STRICMP)
   606 #define SDL_strcasecmp  _stricmp
   607 #else
   608 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1,
   609                                            const char *str2);
   610 #endif
   611 
   612 #ifdef HAVE_STRNCASECMP
   613 #define SDL_strncasecmp strncasecmp
   614 #elif defined(HAVE__STRNICMP)
   615 #define SDL_strncasecmp _strnicmp
   616 #else
   617 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1,
   618                                             const char *str2, size_t maxlen);
   619 #endif
   620 
   621 #ifdef HAVE_SSCANF
   622 #define SDL_sscanf      sscanf
   623 #else
   624 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt,
   625                                        ...);
   626 #endif
   627 
   628 #ifdef HAVE_SNPRINTF
   629 #define SDL_snprintf    snprintf
   630 #else
   631 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen,
   632                                          const char *fmt, ...);
   633 #endif
   634 
   635 #ifdef HAVE_VSNPRINTF
   636 #define SDL_vsnprintf   vsnprintf
   637 #else
   638 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen,
   639                                           const char *fmt, va_list ap);
   640 #endif
   641 
   642 /* The SDL implementation of iconv() returns these error codes */
   643 #define SDL_ICONV_ERROR		(size_t)-1
   644 #define SDL_ICONV_E2BIG		(size_t)-2
   645 #define SDL_ICONV_EILSEQ	(size_t)-3
   646 #define SDL_ICONV_EINVAL	(size_t)-4
   647 
   648 #ifdef HAVE_ICONV
   649 #define SDL_iconv_t     iconv_t
   650 #define SDL_iconv_open  iconv_open
   651 #define SDL_iconv_close iconv_close
   652 #else
   653 typedef struct _SDL_iconv_t *SDL_iconv_t;
   654 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   655                                                    const char *fromcode);
   656 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   657 #endif
   658 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   659                                          size_t * inbytesleft, char **outbuf,
   660                                          size_t * outbytesleft);
   661 /* This function converts a string between encodings in one pass, returning a
   662    string that must be freed with SDL_free() or NULL on error.
   663 */
   664 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   665                                                const char *fromcode,
   666                                                const char *inbuf,
   667                                                size_t inbytesleft);
   668 #define SDL_iconv_utf8_locale(S)	SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   669 #define SDL_iconv_utf8_ucs2(S)		(Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
   670 #define SDL_iconv_utf8_ucs4(S)		(Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
   671 
   672 /* Ends C function definitions when using C++ */
   673 #ifdef __cplusplus
   674 /* *INDENT-OFF* */
   675 }
   676 /* *INDENT-ON* */
   677 #endif
   678 #include "close_code.h"
   679 
   680 #endif /* _SDL_stdinc_h */
   681 
   682 /* vi: set ts=4 sw=4 expandtab: */