include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Sun, 22 Aug 2010 12:34:31 -0700
changeset 4761 bb2e32f5a556
parent 4758 e2f4e31b41fc
child 4763 518d1679d2d0
permissions -rw-r--r--
Removed spurious carriage returns
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2010 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 /* Define a four character code as a Uint32 */
   105 #define SDL_FOURCC(A, B, C, D) \
   106     ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
   107      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
   108      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
   109      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
   110 
   111 /**
   112  *  \name Basic data types
   113  */
   114 /*@{*/
   115 
   116 typedef enum
   117 {
   118     SDL_FALSE = 0,
   119     SDL_TRUE = 1
   120 } SDL_bool;
   121 
   122 /**
   123  * \brief A signed 8-bit integer type.
   124  */
   125 typedef int8_t Sint8;
   126 /**
   127  * \brief An unsigned 8-bit integer type.
   128  */
   129 typedef uint8_t Uint8;
   130 /**
   131  * \brief A signed 16-bit integer type.
   132  */
   133 typedef int16_t Sint16;
   134 /**
   135  * \brief An unsigned 16-bit integer type.
   136  */
   137 typedef uint16_t Uint16;
   138 /**
   139  * \brief A signed 32-bit integer type.
   140  */
   141 typedef int32_t Sint32;
   142 /**
   143  * \brief An unsigned 32-bit integer type.
   144  */
   145 typedef uint32_t Uint32;
   146 
   147 #ifdef SDL_HAS_64BIT_TYPE
   148 /**
   149  * \brief A signed 64-bit integer type.
   150  * \warning On platforms without any sort of 64-bit datatype, this is equivalent to Sint32!
   151  */
   152 typedef int64_t Sint64;
   153 /**
   154  * \brief An unsigned 64-bit integer type.
   155  * \warning On platforms without any sort of 64-bit datatype, this is equivalent to Uint32!
   156  */
   157 typedef uint64_t Uint64;
   158 #else
   159 /* This is really just a hack to prevent the compiler from complaining */
   160 typedef Sint32 Sint64;
   161 typedef Uint32 Uint64;
   162 #endif
   163 
   164 /*@}*//*Basic data types*/
   165 
   166 
   167 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   168        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   169 /** \cond */
   170 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   171 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   172 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   173 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   174 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   175 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   176 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   177 #ifndef __NINTENDODS__          /* TODO: figure out why the following happens:
   178                                    include/SDL_stdinc.h:150: error: size of array 'SDL_dummy_uint64' is negative
   179                                    include/SDL_stdinc.h:151: error: size of array 'SDL_dummy_sint64' is negative */
   180 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   181 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   182 #endif
   183 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   184 /** \endcond */
   185 
   186 /* Check to make sure enums are the size of ints, for structure packing.
   187    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   188    enums having the size of an int must be enabled.
   189    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   190 */
   191 /* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
   192 #ifdef __MWERKS__
   193 #pragma enumsalwaysint on
   194 #endif
   195 
   196 /** \cond */
   197 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   198 #ifndef __NINTENDODS__          /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   199 typedef enum
   200 {
   201     DUMMY_ENUM_VALUE
   202 } SDL_DUMMY_ENUM;
   203 
   204 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   205 #endif
   206 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   207 /** \endcond */
   208 
   209 #include "begin_code.h"
   210 /* Set up for C function definitions, even when using C++ */
   211 #ifdef __cplusplus
   212 /* *INDENT-OFF* */
   213 extern "C" {
   214 /* *INDENT-ON* */
   215 #endif
   216 
   217 #ifdef HAVE_MALLOC
   218 #define SDL_malloc	malloc
   219 #else
   220 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   221 #endif
   222 
   223 #ifdef HAVE_CALLOC
   224 #define SDL_calloc	calloc
   225 #else
   226 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   227 #endif
   228 
   229 #ifdef HAVE_REALLOC
   230 #define SDL_realloc	realloc
   231 #else
   232 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   233 #endif
   234 
   235 #ifdef HAVE_FREE
   236 #define SDL_free	free
   237 #else
   238 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   239 #endif
   240 
   241 #if defined(HAVE_ALLOCA) && !defined(alloca)
   242 # if defined(HAVE_ALLOCA_H)
   243 #  include <alloca.h>
   244 # elif defined(__GNUC__)
   245 #  define alloca __builtin_alloca
   246 # elif defined(_MSC_VER)
   247 #  include <malloc.h>
   248 #  define alloca _alloca
   249 # elif defined(__WATCOMC__)
   250 #  include <malloc.h>
   251 # elif defined(__BORLANDC__)
   252 #  include <malloc.h>
   253 # elif defined(__DMC__)
   254 #  include <stdlib.h>
   255 # elif defined(__AIX__)
   256 #pragma alloca
   257 # elif defined(__MRC__)
   258 void *alloca(unsigned);
   259 # else
   260 char *alloca();
   261 # endif
   262 #endif
   263 #ifdef HAVE_ALLOCA
   264 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   265 #define SDL_stack_free(data)
   266 #else
   267 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   268 #define SDL_stack_free(data)            SDL_free(data)
   269 #endif
   270 
   271 #ifdef HAVE_GETENV
   272 #define SDL_getenv	getenv
   273 #else
   274 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   275 #endif
   276 
   277 /* SDL_putenv() has moved to SDL_compat. */
   278 #ifdef HAVE_SETENV
   279 #define SDL_setenv	setenv
   280 #else
   281 extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value,
   282                                        int overwrite);
   283 #endif
   284 
   285 #ifdef HAVE_QSORT
   286 #define SDL_qsort	qsort
   287 #else
   288 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
   289                                        int (*compare) (const void *,
   290                                                        const void *));
   291 #endif
   292 
   293 #ifdef HAVE_ABS
   294 #define SDL_abs		abs
   295 #else
   296 #define SDL_abs(X)	((X) < 0 ? -(X) : (X))
   297 #endif
   298 
   299 #define SDL_min(x, y)	(((x) < (y)) ? (x) : (y))
   300 #define SDL_max(x, y)	(((x) > (y)) ? (x) : (y))
   301 
   302 #ifdef HAVE_CTYPE_H
   303 #define SDL_isdigit(X)  isdigit(X)
   304 #define SDL_isspace(X)  isspace(X)
   305 #define SDL_toupper(X)  toupper(X)
   306 #define SDL_tolower(X)  tolower(X)
   307 #else
   308 #define SDL_isdigit(X)  (((X) >= '0') && ((X) <= '9'))
   309 #define SDL_isspace(X)  (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
   310 #define SDL_toupper(X)  (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
   311 #define SDL_tolower(X)  (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
   312 #endif
   313 
   314 #ifdef HAVE_MEMSET
   315 #define SDL_memset      memset
   316 #else
   317 extern DECLSPEC void *SDLCALL SDL_memset(void *dst, int c, size_t len);
   318 #endif
   319 #define SDL_zero(x)	SDL_memset(&(x), 0, sizeof((x)))
   320 #define SDL_zerop(x)	SDL_memset((x), 0, sizeof(*(x)))
   321 
   322 #if defined(__GNUC__) && defined(i386)
   323 #define SDL_memset4(dst, val, len)				\
   324 do {								\
   325 	int u0, u1, u2;						\
   326 	__asm__ __volatile__ (					\
   327 		"cld\n\t"					\
   328 		"rep ; stosl\n\t"				\
   329 		: "=&D" (u0), "=&a" (u1), "=&c" (u2)		\
   330 		: "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, len))	\
   331 		: "memory" );					\
   332 } while(0)
   333 #endif
   334 #ifndef SDL_memset4
   335 #define SDL_memset4(dst, val, len)		\
   336 do {						\
   337 	unsigned _count = (len);		\
   338 	unsigned _n = (_count + 3) / 4;		\
   339 	Uint32 *_p = SDL_static_cast(Uint32 *, dst);		\
   340 	Uint32 _val = (val);			\
   341 	if (len == 0) break;			\
   342         switch (_count % 4) {			\
   343         case 0: do {    *_p++ = _val;		\
   344         case 3:         *_p++ = _val;		\
   345         case 2:         *_p++ = _val;		\
   346         case 1:         *_p++ = _val;		\
   347 		} while ( --_n );		\
   348 	}					\
   349 } while(0)
   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_memcpy(dst, src, len) memcpy(dst, src, len)
   355 #elif defined(__GNUC__) && defined(i386)
   356 #define SDL_memcpy(dst, src, len)					  \
   357 do {									  \
   358 	int u0, u1, u2;						  	  \
   359 	__asm__ __volatile__ (						  \
   360 		"cld\n\t"						  \
   361 		"rep ; movsl\n\t"					  \
   362 		"testb $2,%b4\n\t"					  \
   363 		"je 1f\n\t"						  \
   364 		"movsw\n"						  \
   365 		"1:\ttestb $1,%b4\n\t"					  \
   366 		"je 2f\n\t"						  \
   367 		"movsb\n"						  \
   368 		"2:"							  \
   369 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)			  \
   370 		: "0" (SDL_static_cast(unsigned, len)/4), "q" (len), "1" (dst),"2" (src) \
   371 		: "memory" );						  \
   372 } while(0)
   373 #endif
   374 #ifndef SDL_memcpy
   375 #ifdef HAVE_MEMCPY
   376 #define SDL_memcpy      memcpy
   377 #elif defined(HAVE_BCOPY)
   378 #define SDL_memcpy(d, s, n)	bcopy((s), (d), (n))
   379 #else
   380 extern DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src,
   381                                          size_t len);
   382 #endif
   383 #endif
   384 
   385 /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   386 #if defined(__MACH__) && defined(__APPLE__)
   387 #define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
   388 #elif defined(__GNUC__) && defined(i386)
   389 #define SDL_memcpy4(dst, src, len)				\
   390 do {								\
   391 	int ecx, edi, esi;					\
   392 	__asm__ __volatile__ (					\
   393 		"cld\n\t"					\
   394 		"rep ; movsl"					\
   395 		: "=&c" (ecx), "=&D" (edi), "=&S" (esi)		\
   396 		: "0" (SDL_static_cast(unsigned, len)), "1" (dst), "2" (src)	\
   397 		: "memory" );					\
   398 } while(0)
   399 #endif
   400 #ifndef SDL_memcpy4
   401 #define SDL_memcpy4(dst, src, len)	SDL_memcpy(dst, src, (len) << 2)
   402 #endif
   403 
   404 #if defined(__GNUC__) && defined(i386)
   405 #define SDL_revcpy(dst, src, len)			\
   406 do {							\
   407 	int u0, u1, u2;					\
   408 	char *dstp = SDL_static_cast(char *, dst);			\
   409 	char *srcp = SDL_static_cast(char *, src);			\
   410 	int n = (len);					\
   411 	if ( n >= 4 ) {					\
   412 	__asm__ __volatile__ (				\
   413 		"std\n\t"				\
   414 		"rep ; movsl\n\t"			\
   415 		"cld\n\t"				\
   416 		: "=&c" (u0), "=&D" (u1), "=&S" (u2)	\
   417 		: "0" (n >> 2),				\
   418 		  "1" (dstp+(n-4)), "2" (srcp+(n-4))	\
   419 		: "memory" );				\
   420 	}						\
   421 	switch (n & 3) {				\
   422 		case 3: dstp[2] = srcp[2];		\
   423 		case 2: dstp[1] = srcp[1];		\
   424 		case 1: dstp[0] = srcp[0];		\
   425 			break;				\
   426 		default:				\
   427 			break;				\
   428 	}						\
   429 } while(0)
   430 #endif
   431 #ifndef SDL_revcpy
   432 extern DECLSPEC void *SDLCALL SDL_revcpy(void *dst, const void *src,
   433                                          size_t len);
   434 #endif
   435 
   436 #ifdef HAVE_MEMMOVE
   437 #define SDL_memmove     memmove
   438 #elif defined(HAVE_BCOPY)
   439 #define SDL_memmove(d, s, n)	bcopy((s), (d), (n))
   440 #else
   441 #define SDL_memmove(dst, src, len)			\
   442 do {							\
   443 	if ( dst < src ) {				\
   444 		SDL_memcpy(dst, src, len);		\
   445 	} else {					\
   446 		SDL_revcpy(dst, src, len);		\
   447 	}						\
   448 } while(0)
   449 #endif
   450 
   451 #ifdef HAVE_MEMCMP
   452 #define SDL_memcmp      memcmp
   453 #else
   454 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2,
   455                                        size_t len);
   456 #endif
   457 
   458 #ifdef HAVE_STRLEN
   459 #define SDL_strlen      strlen
   460 #else
   461 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
   462 #endif
   463 
   464 #ifdef HAVE_WCSLEN
   465 #define SDL_wcslen      wcslen
   466 #else
   467 #if !defined(wchar_t) && defined(__NINTENDODS__)
   468 #define wchar_t short           /* TODO: figure out why libnds doesn't have this */
   469 #endif
   470 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t * string);
   471 #endif
   472 
   473 #ifdef HAVE_WCSLCPY
   474 #define SDL_wcslcpy      wcslcpy
   475 #else
   476 extern DECLSPEC size_t SDLCALL SDL_wcslcpy(wchar_t *dst, const wchar_t *src, size_t maxlen);
   477 #endif
   478 
   479 #ifdef HAVE_WCSLCAT
   480 #define SDL_wcslcat      wcslcat
   481 #else
   482 extern DECLSPEC size_t SDLCALL SDL_wcslcat(wchar_t *dst, const wchar_t *src, size_t maxlen);
   483 #endif
   484 
   485 
   486 #ifdef HAVE_STRLCPY
   487 #define SDL_strlcpy     strlcpy
   488 #else
   489 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src,
   490                                            size_t maxlen);
   491 #endif
   492 
   493 extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(char *dst, const char *src,
   494                                             size_t dst_bytes);
   495 
   496 #ifdef HAVE_STRLCAT
   497 #define SDL_strlcat    strlcat
   498 #else
   499 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src,
   500                                            size_t maxlen);
   501 #endif
   502 
   503 #ifdef HAVE_STRDUP
   504 #define SDL_strdup     strdup
   505 #else
   506 extern DECLSPEC char *SDLCALL SDL_strdup(const char *string);
   507 #endif
   508 
   509 #ifdef HAVE__STRREV
   510 #define SDL_strrev      _strrev
   511 #else
   512 extern DECLSPEC char *SDLCALL SDL_strrev(char *string);
   513 #endif
   514 
   515 #ifdef HAVE__STRUPR
   516 #define SDL_strupr      _strupr
   517 #else
   518 extern DECLSPEC char *SDLCALL SDL_strupr(char *string);
   519 #endif
   520 
   521 #ifdef HAVE__STRLWR
   522 #define SDL_strlwr      _strlwr
   523 #else
   524 extern DECLSPEC char *SDLCALL SDL_strlwr(char *string);
   525 #endif
   526 
   527 #ifdef HAVE_STRCHR
   528 #define SDL_strchr      strchr
   529 #elif defined(HAVE_INDEX)
   530 #define SDL_strchr      index
   531 #else
   532 extern DECLSPEC char *SDLCALL SDL_strchr(const char *string, int c);
   533 #endif
   534 
   535 #ifdef HAVE_STRRCHR
   536 #define SDL_strrchr     strrchr
   537 #elif defined(HAVE_RINDEX)
   538 #define SDL_strrchr     rindex
   539 #else
   540 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *string, int c);
   541 #endif
   542 
   543 #ifdef HAVE_STRSTR
   544 #define SDL_strstr      strstr
   545 #else
   546 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack,
   547                                          const char *needle);
   548 #endif
   549 
   550 #ifdef HAVE_ITOA
   551 #define SDL_itoa        itoa
   552 #else
   553 #define SDL_itoa(value, string, radix)	SDL_ltoa((long)value, string, radix)
   554 #endif
   555 
   556 #ifdef HAVE__LTOA
   557 #define SDL_ltoa        _ltoa
   558 #else
   559 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *string, int radix);
   560 #endif
   561 
   562 #ifdef HAVE__UITOA
   563 #define SDL_uitoa       _uitoa
   564 #else
   565 #define SDL_uitoa(value, string, radix)	SDL_ultoa((long)value, string, radix)
   566 #endif
   567 
   568 #ifdef HAVE__ULTOA
   569 #define SDL_ultoa       _ultoa
   570 #else
   571 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *string,
   572                                         int radix);
   573 #endif
   574 
   575 #ifdef HAVE_STRTOL
   576 #define SDL_strtol      strtol
   577 #else
   578 extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp,
   579                                         int base);
   580 #endif
   581 
   582 #ifdef HAVE_STRTOUL
   583 #define SDL_strtoul      strtoul
   584 #else
   585 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string,
   586                                                   char **endp, int base);
   587 #endif
   588 
   589 #ifdef SDL_HAS_64BIT_TYPE
   590 
   591 #ifdef HAVE__I64TOA
   592 #define SDL_lltoa       _i64toa
   593 #else
   594 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *string,
   595                                         int radix);
   596 #endif
   597 
   598 #ifdef HAVE__UI64TOA
   599 #define SDL_ulltoa      _ui64toa
   600 #else
   601 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *string,
   602                                          int radix);
   603 #endif
   604 
   605 #ifdef HAVE_STRTOLL
   606 #define SDL_strtoll     strtoll
   607 #else
   608 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp,
   609                                            int base);
   610 #endif
   611 
   612 #ifdef HAVE_STRTOULL
   613 #define SDL_strtoull     strtoull
   614 #else
   615 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp,
   616                                             int base);
   617 #endif
   618 
   619 #endif /* SDL_HAS_64BIT_TYPE */
   620 
   621 #ifdef HAVE_STRTOD
   622 #define SDL_strtod      strtod
   623 #else
   624 extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
   625 #endif
   626 
   627 #ifdef HAVE_ATOI
   628 #define SDL_atoi        atoi
   629 #else
   630 #define SDL_atoi(X)     SDL_strtol(X, NULL, 0)
   631 #endif
   632 
   633 #ifdef HAVE_ATOF
   634 #define SDL_atof        atof
   635 #else
   636 #define SDL_atof(X)     SDL_strtod(X, NULL)
   637 #endif
   638 
   639 #ifdef HAVE_STRCMP
   640 #define SDL_strcmp      strcmp
   641 #else
   642 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   643 #endif
   644 
   645 #ifdef HAVE_STRNCMP
   646 #define SDL_strncmp     strncmp
   647 #else
   648 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2,
   649                                         size_t maxlen);
   650 #endif
   651 
   652 #ifdef HAVE_STRCASECMP
   653 #define SDL_strcasecmp  strcasecmp
   654 #elif defined(HAVE__STRICMP)
   655 #define SDL_strcasecmp  _stricmp
   656 #else
   657 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1,
   658                                            const char *str2);
   659 #endif
   660 
   661 #ifdef HAVE_STRNCASECMP
   662 #define SDL_strncasecmp strncasecmp
   663 #elif defined(HAVE__STRNICMP)
   664 #define SDL_strncasecmp _strnicmp
   665 #else
   666 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1,
   667                                             const char *str2, size_t maxlen);
   668 #endif
   669 
   670 #ifdef HAVE_SSCANF
   671 #define SDL_sscanf      sscanf
   672 #else
   673 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt,
   674                                        ...);
   675 #endif
   676 
   677 #ifdef HAVE_SNPRINTF
   678 #define SDL_snprintf    snprintf
   679 #else
   680 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen,
   681                                          const char *fmt, ...);
   682 #endif
   683 
   684 #ifdef HAVE_VSNPRINTF
   685 #define SDL_vsnprintf   vsnprintf
   686 #else
   687 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen,
   688                                           const char *fmt, va_list ap);
   689 #endif
   690 
   691 #ifndef HAVE_M_PI
   692 #define M_PI    3.14159265358979323846264338327950288   /* pi */
   693 #endif
   694 
   695 #ifdef HAVE_CEIL
   696 #define SDL_ceil        ceil
   697 #else
   698 #define SDL_ceil(x)     ((double)(int)((x)+0.5))
   699 #endif
   700 
   701 #ifdef HAVE_COPYSIGN
   702 #define SDL_copysign    copysign
   703 #else
   704 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   705 #endif
   706 
   707 #ifdef HAVE_COS
   708 #define SDL_cos         cos
   709 #else
   710 extern DECLSPEC double SDLCALL SDL_cos(double x);
   711 #endif
   712 
   713 #ifdef HAVE_COSF
   714 #define SDL_cosf        cosf
   715 #else
   716 #define SDL_cosf(x) (float)SDL_cos((double)x)
   717 #endif
   718 
   719 #ifdef HAVE_FABS
   720 #define SDL_fabs        fabs
   721 #else
   722 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   723 #endif
   724 
   725 #ifdef HAVE_FLOOR
   726 #define SDL_floor       floor
   727 #else
   728 extern DECLSPEC double SDLCALL SDL_floor(double x);
   729 #endif
   730 
   731 #ifdef HAVE_LOG
   732 #define SDL_log         log
   733 #else
   734 extern DECLSPEC double SDLCALL SDL_log(double x);
   735 #endif
   736 
   737 #ifdef HAVE_POW
   738 #define SDL_pow         pow
   739 #else
   740 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   741 #endif
   742 
   743 #ifdef HAVE_SCALBN
   744 #define SDL_scalbn      scalbn
   745 #else
   746 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   747 #endif
   748 
   749 #ifdef HAVE_SIN
   750 #define SDL_sin         sin
   751 #else
   752 extern DECLSPEC double SDLCALL SDL_sin(double x);
   753 #endif
   754 
   755 #ifdef HAVE_SINF
   756 #define SDL_sinf        sinf
   757 #else
   758 #define SDL_sinf(x) (float)SDL_sin((double)x)
   759 #endif
   760 
   761 #ifdef HAVE_SQRT
   762 #define SDL_sqrt        sqrt
   763 #else
   764 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   765 #endif
   766 
   767 /* The SDL implementation of iconv() returns these error codes */
   768 #define SDL_ICONV_ERROR		(size_t)-1
   769 #define SDL_ICONV_E2BIG		(size_t)-2
   770 #define SDL_ICONV_EILSEQ	(size_t)-3
   771 #define SDL_ICONV_EINVAL	(size_t)-4
   772 
   773 #if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
   774 #define SDL_iconv_t     iconv_t
   775 #define SDL_iconv_open  iconv_open
   776 #define SDL_iconv_close iconv_close
   777 #else
   778 typedef struct _SDL_iconv_t *SDL_iconv_t;
   779 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   780                                                    const char *fromcode);
   781 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   782 #endif
   783 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   784                                          size_t * inbytesleft, char **outbuf,
   785                                          size_t * outbytesleft);
   786 /**
   787  *  This function converts a string between encodings in one pass, returning a
   788  *  string that must be freed with SDL_free() or NULL on error.
   789  */
   790 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   791                                                const char *fromcode,
   792                                                const char *inbuf,
   793                                                size_t inbytesleft);
   794 #define SDL_iconv_utf8_locale(S)	SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   795 #define SDL_iconv_utf8_ucs2(S)		(Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
   796 #define SDL_iconv_utf8_ucs4(S)		(Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
   797 
   798 /* Ends C function definitions when using C++ */
   799 #ifdef __cplusplus
   800 /* *INDENT-OFF* */
   801 }
   802 /* *INDENT-ON* */
   803 #endif
   804 #include "close_code.h"
   805 
   806 #endif /* _SDL_stdinc_h */
   807 
   808 /* vi: set ts=4 sw=4 expandtab: */