include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Mon, 19 Oct 2009 13:31:58 +0000
changeset 3407 d3baf5ac4e37
parent 3365 9cd5b35c0184
child 3567 fb9ea4b549c3
permissions -rw-r--r--
Partial fix for bug #859

Header file update from Ken for improved doxygen output
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2009 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_MATH_H
    76 # include <math.h>
    77 #endif
    78 #if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
    79 # include <iconv.h>
    80 #endif
    81 
    82 /**
    83  *  The number of elements in an array.
    84  */
    85 #define SDL_arraysize(array)	(sizeof(array)/sizeof(array[0]))
    86 #define SDL_TABLESIZE(table)	SDL_arraysize(table)
    87 
    88 /**
    89  *  \name Cast operators
    90  *  
    91  *  Use proper C++ casts when compiled as C++ to be compatible with the option
    92  *  -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
    93  */
    94 /*@{*/
    95 #ifdef __cplusplus
    96 #define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
    97 #define SDL_static_cast(type, expression) static_cast<type>(expression)
    98 #else
    99 #define SDL_reinterpret_cast(type, expression) ((type)(expression))
   100 #define SDL_static_cast(type, expression) ((type)(expression))
   101 #endif
   102 /*@}*//*Cast operators*/
   103 
   104 /**
   105  *  \name Basic data types
   106  */
   107 /*@{*/
   108 
   109 typedef enum
   110 {
   111     SDL_FALSE = 0,
   112     SDL_TRUE = 1
   113 } SDL_bool;
   114 
   115 /**
   116  * \brief A signed 8-bit integer type.
   117  */
   118 typedef int8_t Sint8;
   119 /**
   120  * \brief An unsigned 8-bit integer type.
   121  */
   122 typedef uint8_t Uint8;
   123 /**
   124  * \brief A signed 16-bit integer type.
   125  */
   126 typedef int16_t Sint16;
   127 /**
   128  * \brief An unsigned 16-bit integer type.
   129  */
   130 typedef uint16_t Uint16;
   131 /**
   132  * \brief A signed 32-bit integer type.
   133  */
   134 typedef int32_t Sint32;
   135 /**
   136  * \brief An unsigned 32-bit integer type.
   137  */
   138 typedef uint32_t Uint32;
   139 
   140 #ifdef SDL_HAS_64BIT_TYPE
   141 /**
   142  * \brief A signed 64-bit integer type.
   143  * \warning On platforms without any sort of 64-bit datatype, this is equivalent to Sint32!
   144  */
   145 typedef int64_t Sint64;
   146 /**
   147  * \brief An unsigned 64-bit integer type.
   148  * \warning On platforms without any sort of 64-bit datatype, this is equivalent to Uint32!
   149  */
   150 typedef uint64_t Uint64;
   151 #else
   152 /* This is really just a hack to prevent the compiler from complaining */
   153 typedef Sint32 Sint64;
   154 typedef Uint32 Uint64;
   155 #endif
   156 
   157 /*@}*//*Basic data types*/
   158 
   159 
   160 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   161        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   162 /** \cond */
   163 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   164 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   165 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   166 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   167 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   168 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   169 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   170 #ifndef __NINTENDODS__          /* TODO: figure out why the following happens:
   171                                    include/SDL_stdinc.h:150: error: size of array 'SDL_dummy_uint64' is negative
   172                                    include/SDL_stdinc.h:151: error: size of array 'SDL_dummy_sint64' is negative */
   173 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   174 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   175 #endif
   176 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   177 /** \endcond */
   178 
   179 /* Check to make sure enums are the size of ints, for structure packing.
   180    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   181    enums having the size of an int must be enabled.
   182    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   183 */
   184 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   185 #ifdef __MWERKS__
   186 #pragma enumsalwaysint on
   187 #endif
   188 
   189 /** \cond */
   190 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   191 #ifndef __NINTENDODS__          /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   192 typedef enum
   193 {
   194     DUMMY_ENUM_VALUE
   195 } SDL_DUMMY_ENUM;
   196 
   197 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   198 #endif
   199 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   200 /** \endcond */
   201 
   202 #include "begin_code.h"
   203 /* Set up for C function definitions, even when using C++ */
   204 #ifdef __cplusplus
   205 /* *INDENT-OFF* */
   206 extern "C" {
   207 /* *INDENT-ON* */
   208 #endif
   209 
   210 #ifdef HAVE_MALLOC
   211 #define SDL_malloc	malloc
   212 #else
   213 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   214 #endif
   215 
   216 #ifdef HAVE_CALLOC
   217 #define SDL_calloc	calloc
   218 #else
   219 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   220 #endif
   221 
   222 #ifdef HAVE_REALLOC
   223 #define SDL_realloc	realloc
   224 #else
   225 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   226 #endif
   227 
   228 #ifdef HAVE_FREE
   229 #define SDL_free	free
   230 #else
   231 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   232 #endif
   233 
   234 #if defined(HAVE_ALLOCA) && !defined(alloca)
   235 # if defined(HAVE_ALLOCA_H)
   236 #  include <alloca.h>
   237 # elif defined(__GNUC__)
   238 #  define alloca __builtin_alloca
   239 # elif defined(_MSC_VER)
   240 #  include <malloc.h>
   241 #  define alloca _alloca
   242 # elif defined(__WATCOMC__)
   243 #  include <malloc.h>
   244 # elif defined(__BORLANDC__)
   245 #  include <malloc.h>
   246 # elif defined(__DMC__)
   247 #  include <stdlib.h>
   248 # elif defined(__AIX__)
   249 #pragma alloca
   250 # elif defined(__MRC__)
   251 void *alloca(unsigned);
   252 # else
   253 char *alloca();
   254 # endif
   255 #endif
   256 #ifdef HAVE_ALLOCA
   257 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   258 #define SDL_stack_free(data)
   259 #else
   260 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   261 #define SDL_stack_free(data)            SDL_free(data)
   262 #endif
   263 
   264 #ifdef HAVE_GETENV
   265 #define SDL_getenv	getenv
   266 #else
   267 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   268 #endif
   269 
   270 #ifdef HAVE_PUTENV
   271 #define SDL_putenv	putenv
   272 #else
   273 extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
   274 #endif
   275 
   276 #ifdef HAVE_QSORT
   277 #define SDL_qsort	qsort
   278 #else
   279 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
   280                                        int (*compare) (const void *,
   281                                                        const void *));
   282 #endif
   283 
   284 #ifdef HAVE_ABS
   285 #define SDL_abs		abs
   286 #else
   287 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))
   288 #endif
   289 
   290 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))
   291 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))
   292 
   293 #ifdef HAVE_CTYPE_H
   294 #define SDL_isdigit(X)  isdigit(X)
   295 #define SDL_isspace(X)  isspace(X)
   296 #define SDL_toupper(X)  toupper(X)
   297 #define SDL_tolower(X)  tolower(X)
   298 #else
   299 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))
   300 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
   301 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
   302 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
   303 #endif
   304 
   305 #ifdef HAVE_MEMSET
   306 #define SDL_memset      memset
   307 #else
   308 extern DECLSPEC void *SDLCALL SDL_memset(void *dst, int c, size_t len);
   309 #endif
   310 #define SDL_zero(x)	SDL_memset(&(x), 0, sizeof((x)))
   311 #define SDL_zerop(x)	SDL_memset((x), 0, sizeof(*(x)))
   312 
   313 #if defined(__GNUC__) && defined(i386)
   314 #define SDL_memset4(dst, val, len)				\
   315 do {								\
   316 	int u0, u1, u2;						\
   317 	__asm__ __volatile__ (					\
   318 		"cld\n\t"					\
   319 		"rep ; stosl\n\t"				\
   320 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\
   321 		: "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, len))	\
   322 		: "memory" );					\
   323 } while(0)
   324 #endif
   325 #ifndef SDL_memset4
   326 #define SDL_memset4(dst, val, len)		\
   327 do {						\
   328 	unsigned _count = (len);		\
   329 	unsigned _n = (_count + 3) / 4;		\
   330 	Uint32 *_p = SDL_static_cast(Uint32 *, dst);		\
   331 	Uint32 _val = (val);			\
   332 	if (len == 0) break;			\
   333         switch (_count % 4) {			\
   334         case 0: do {    *_p++ = _val;		\
   335         case 3:         *_p++ = _val;		\
   336         case 2:         *_p++ = _val;		\
   337         case 1:         *_p++ = _val;		\
   338 		} while ( --_n );		\
   339 	}					\
   340 } while(0)
   341 #endif
   342 
   343 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   344 #if defined(__MACH__) && defined(__APPLE__)
   345 #define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
   346 #elif defined(__GNUC__) && defined(i386)
   347 #define SDL_memcpy(dst, src, len)					  \
   348 do {									  \
   349 	int u0, u1, u2;						  	  \
   350 	__asm__ __volatile__ (						  \
   351 		"cld\n\t"						  \
   352 		"rep ; movsl\n\t"					  \
   353 		"testb $2,%b4\n\t"					  \
   354 		"je 1f\n\t"						  \
   355 		"movsw\n"						  \
   356 		"1:\ttestb $1,%b4\n\t"					  \
   357 		"je 2f\n\t"						  \
   358 		"movsb\n"						  \
   359 		"2:"							  \
   360 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \
   361 		: "0" (SDL_static_cast(unsigned, len)/4), "q" (len), "1" (dst),"2" (src) \
   362 		: "memory" );						  \
   363 } while(0)
   364 #endif
   365 #ifndef SDL_memcpy
   366 #ifdef HAVE_MEMCPY
   367 #define SDL_memcpy      memcpy
   368 #elif defined(HAVE_BCOPY)
   369 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))
   370 #else
   371 extern DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src,
   372                                          size_t len);
   373 #endif
   374 #endif
   375 
   376 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   377 #if defined(__MACH__) && defined(__APPLE__)
   378 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
   379 #elif defined(__GNUC__) && defined(i386)
   380 #define SDL_memcpy4(dst, src, len)				\
   381 do {								\
   382 	int ecx, edi, esi;					\
   383 	__asm__ __volatile__ (					\
   384 		"cld\n\t"					\
   385 		"rep ; movsl"					\
   386 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\
   387 		: "0" (SDL_static_cast(unsigned, len)), "1" (dst), "2" (src)	\
   388 		: "memory" );					\
   389 } while(0)
   390 #endif
   391 #ifndef SDL_memcpy4
   392 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)
   393 #endif
   394 
   395 #if defined(__GNUC__) && defined(i386)
   396 #define SDL_revcpy(dst, src, len)			\
   397 do {							\
   398 	int u0, u1, u2;					\
   399 	char *dstp = SDL_static_cast(char *, dst);			\
   400 	char *srcp = SDL_static_cast(char *, src);			\
   401 	int n = (len);					\
   402 	if ( n >= 4 ) {					\
   403 	__asm__ __volatile__ (				\
   404 		"std\n\t"				\
   405 		"rep ; movsl\n\t"			\
   406 		"cld\n\t"				\
   407 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\
   408 		: "0" (n >> 2),				\
   409 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\
   410 		: "memory" );				\
   411 	}						\
   412 	switch (n & 3) {				\
   413 		case 3: dstp[2] = srcp[2];		\
   414 		case 2: dstp[1] = srcp[1];		\
   415 		case 1: dstp[0] = srcp[0];		\
   416 			break;				\
   417 		default:				\
   418 			break;				\
   419 	}						\
   420 } while(0)
   421 #endif
   422 #ifndef SDL_revcpy
   423 extern DECLSPEC void *SDLCALL SDL_revcpy(void *dst, const void *src,
   424                                          size_t len);
   425 #endif
   426 
   427 #ifdef HAVE_MEMMOVE
   428 #define SDL_memmove     memmove
   429 #elif defined(HAVE_BCOPY)
   430 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))
   431 #else
   432 #define SDL_memmove(dst, src, len)			\
   433 do {							\
   434 	if ( dst < src ) {				\
   435 		SDL_memcpy(dst, src, len);		\
   436 	} else {					\
   437 		SDL_revcpy(dst, src, len);		\
   438 	}						\
   439 } while(0)
   440 #endif
   441 
   442 #ifdef HAVE_MEMCMP
   443 #define SDL_memcmp      memcmp
   444 #else
   445 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2,
   446                                        size_t len);
   447 #endif
   448 
   449 #ifdef HAVE_STRLEN
   450 #define SDL_strlen      strlen
   451 #else
   452 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
   453 #endif
   454 
   455 #ifdef HAVE_WCSLEN
   456 #define SDL_wcslen      wcslen
   457 #else
   458 #if !defined(wchar_t) && defined(__NINTENDODS__)
   459 #define wchar_t short           /* TODO: figure out why libnds doesn't have this */
   460 #endif
   461 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t * string);
   462 #endif
   463 
   464 #ifdef HAVE_STRLCPY
   465 #define SDL_strlcpy     strlcpy
   466 #else
   467 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src,
   468                                            size_t maxlen);
   469 #endif
   470 
   471 #ifdef HAVE_STRLCAT
   472 #define SDL_strlcat    strlcat
   473 #else
   474 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src,
   475                                            size_t maxlen);
   476 #endif
   477 
   478 #ifdef HAVE_STRDUP
   479 #define SDL_strdup     strdup
   480 #else
   481 extern DECLSPEC char *SDLCALL SDL_strdup(const char *string);
   482 #endif
   483 
   484 #ifdef HAVE__STRREV
   485 #define SDL_strrev      _strrev
   486 #else
   487 extern DECLSPEC char *SDLCALL SDL_strrev(char *string);
   488 #endif
   489 
   490 #ifdef HAVE__STRUPR
   491 #define SDL_strupr      _strupr
   492 #else
   493 extern DECLSPEC char *SDLCALL SDL_strupr(char *string);
   494 #endif
   495 
   496 #ifdef HAVE__STRLWR
   497 #define SDL_strlwr      _strlwr
   498 #else
   499 extern DECLSPEC char *SDLCALL SDL_strlwr(char *string);
   500 #endif
   501 
   502 #ifdef HAVE_STRCHR
   503 #define SDL_strchr      strchr
   504 #elif defined(HAVE_INDEX)
   505 #define SDL_strchr      index
   506 #else
   507 extern DECLSPEC char *SDLCALL SDL_strchr(const char *string, int c);
   508 #endif
   509 
   510 #ifdef HAVE_STRRCHR
   511 #define SDL_strrchr     strrchr
   512 #elif defined(HAVE_RINDEX)
   513 #define SDL_strrchr     rindex
   514 #else
   515 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *string, int c);
   516 #endif
   517 
   518 #ifdef HAVE_STRSTR
   519 #define SDL_strstr      strstr
   520 #else
   521 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack,
   522                                          const char *needle);
   523 #endif
   524 
   525 #ifdef HAVE_ITOA
   526 #define SDL_itoa        itoa
   527 #else
   528 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
   529 #endif
   530 
   531 #ifdef HAVE__LTOA
   532 #define SDL_ltoa        _ltoa
   533 #else
   534 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *string, int radix);
   535 #endif
   536 
   537 #ifdef HAVE__UITOA
   538 #define SDL_uitoa       _uitoa
   539 #else
   540 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
   541 #endif
   542 
   543 #ifdef HAVE__ULTOA
   544 #define SDL_ultoa       _ultoa
   545 #else
   546 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *string,
   547                                         int radix);
   548 #endif
   549 
   550 #ifdef HAVE_STRTOL
   551 #define SDL_strtol      strtol
   552 #else
   553 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp,
   554                                         int base);
   555 #endif
   556 
   557 #ifdef HAVE_STRTOUL
   558 #define SDL_strtoul      strtoul
   559 #else
   560 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string,
   561                                                   char **endp, int base);
   562 #endif
   563 
   564 #ifdef SDL_HAS_64BIT_TYPE
   565 
   566 #ifdef HAVE__I64TOA
   567 #define SDL_lltoa       _i64toa
   568 #else
   569 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *string,
   570                                         int radix);
   571 #endif
   572 
   573 #ifdef HAVE__UI64TOA
   574 #define SDL_ulltoa      _ui64toa
   575 #else
   576 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *string,
   577                                          int radix);
   578 #endif
   579 
   580 #ifdef HAVE_STRTOLL
   581 #define SDL_strtoll     strtoll
   582 #else
   583 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp,
   584                                            int base);
   585 #endif
   586 
   587 #ifdef HAVE_STRTOULL
   588 #define SDL_strtoull     strtoull
   589 #else
   590 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp,
   591                                             int base);
   592 #endif
   593 
   594 #endif /* SDL_HAS_64BIT_TYPE */
   595 
   596 #ifdef HAVE_STRTOD
   597 #define SDL_strtod      strtod
   598 #else
   599 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
   600 #endif
   601 
   602 #ifdef HAVE_ATOI
   603 #define SDL_atoi        atoi
   604 #else
   605 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
   606 #endif
   607 
   608 #ifdef HAVE_ATOF
   609 #define SDL_atof        atof
   610 #else
   611 #define SDL_atof(X)     SDL_strtod(X, NULL)
   612 #endif
   613 
   614 #ifdef HAVE_STRCMP
   615 #define SDL_strcmp      strcmp
   616 #else
   617 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   618 #endif
   619 
   620 #ifdef HAVE_STRNCMP
   621 #define SDL_strncmp     strncmp
   622 #else
   623 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2,
   624                                         size_t maxlen);
   625 #endif
   626 
   627 #ifdef HAVE_STRCASECMP
   628 #define SDL_strcasecmp  strcasecmp
   629 #elif defined(HAVE__STRICMP)
   630 #define SDL_strcasecmp  _stricmp
   631 #else
   632 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1,
   633                                            const char *str2);
   634 #endif
   635 
   636 #ifdef HAVE_STRNCASECMP
   637 #define SDL_strncasecmp strncasecmp
   638 #elif defined(HAVE__STRNICMP)
   639 #define SDL_strncasecmp _strnicmp
   640 #else
   641 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1,
   642                                             const char *str2, size_t maxlen);
   643 #endif
   644 
   645 #ifdef HAVE_SSCANF
   646 #define SDL_sscanf      sscanf
   647 #else
   648 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt,
   649                                        ...);
   650 #endif
   651 
   652 #ifdef HAVE_SNPRINTF
   653 #define SDL_snprintf    snprintf
   654 #else
   655 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen,
   656                                          const char *fmt, ...);
   657 #endif
   658 
   659 #ifdef HAVE_VSNPRINTF
   660 #define SDL_vsnprintf   vsnprintf
   661 #else
   662 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen,
   663                                           const char *fmt, va_list ap);
   664 #endif
   665 
   666 #ifndef HAVE_M_PI
   667 #define M_PI    3.14159265358979323846264338327950288   /* pi */
   668 #endif
   669 
   670 #ifdef HAVE_CEIL
   671 #define SDL_ceil        ceil
   672 #else
   673 #define SDL_ceil(x)     ((double)(int)((x)+0.5))
   674 #endif
   675 
   676 #ifdef HAVE_COPYSIGN
   677 #define SDL_copysign    copysign
   678 #else
   679 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   680 #endif
   681 
   682 #ifdef HAVE_COS
   683 #define SDL_cos         cos
   684 #else
   685 extern DECLSPEC double SDLCALL SDL_cos(double x);
   686 #endif
   687 
   688 #ifdef HAVE_COSF
   689 #define SDL_cosf        cosf
   690 #else
   691 #define SDL_cosf(x) (float)SDL_cos((double)x)
   692 #endif
   693 
   694 #ifdef HAVE_FABS
   695 #define SDL_fabs        fabs
   696 #else
   697 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   698 #endif
   699 
   700 #ifdef HAVE_FLOOR
   701 #define SDL_floor       floor
   702 #else
   703 extern DECLSPEC double SDLCALL SDL_floor(double x);
   704 #endif
   705 
   706 #ifdef HAVE_LOG
   707 #define SDL_log         log
   708 #else
   709 extern DECLSPEC double SDLCALL SDL_log(double x);
   710 #endif
   711 
   712 #ifdef HAVE_POW
   713 #define SDL_pow         pow
   714 #else
   715 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   716 #endif
   717 
   718 #ifdef HAVE_SCALBN
   719 #define SDL_scalbn      scalbn
   720 #else
   721 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   722 #endif
   723 
   724 #ifdef HAVE_SIN
   725 #define SDL_sin         sin
   726 #else
   727 extern DECLSPEC double SDLCALL SDL_sin(double x);
   728 #endif
   729 
   730 #ifdef HAVE_SINF
   731 #define SDL_sinf        sinf
   732 #else
   733 #define SDL_sinf(x) (float)SDL_sin((double)x)
   734 #endif
   735 
   736 #ifdef HAVE_SQRT
   737 #define SDL_sqrt        sqrt
   738 #else
   739 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   740 #endif
   741 
   742 /* The SDL implementation of iconv() returns these error codes */
   743 #define SDL_ICONV_ERROR		(size_t)-1
   744 #define SDL_ICONV_E2BIG		(size_t)-2
   745 #define SDL_ICONV_EILSEQ	(size_t)-3
   746 #define SDL_ICONV_EINVAL	(size_t)-4
   747 
   748 #if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
   749 #define SDL_iconv_t     iconv_t
   750 #define SDL_iconv_open  iconv_open
   751 #define SDL_iconv_close iconv_close
   752 #else
   753 typedef struct _SDL_iconv_t *SDL_iconv_t;
   754 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   755                                                    const char *fromcode);
   756 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   757 #endif
   758 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   759                                          size_t * inbytesleft, char **outbuf,
   760                                          size_t * outbytesleft);
   761 /**
   762  *  This function converts a string between encodings in one pass, returning a
   763  *  string that must be freed with SDL_free() or NULL on error.
   764  */
   765 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   766                                                const char *fromcode,
   767                                                const char *inbuf,
   768                                                size_t inbytesleft);
   769 #define SDL_iconv_utf8_locale(S)	SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   770 #define SDL_iconv_utf8_ucs2(S)		(Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
   771 #define SDL_iconv_utf8_ucs4(S)		(Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
   772 
   773 /* Ends C function definitions when using C++ */
   774 #ifdef __cplusplus
   775 /* *INDENT-OFF* */
   776 }
   777 /* *INDENT-ON* */
   778 #endif
   779 #include "close_code.h"
   780 
   781 #endif /* _SDL_stdinc_h */
   782 
   783 /* vi: set ts=4 sw=4 expandtab: */