include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Sat, 18 May 2013 14:17:52 -0700
changeset 7191 75360622e65f
parent 7076 1666f7a7494e
child 7307 5d6b7b9432d3
permissions -rw-r--r--
File style cleanup for the SDL 2.0 release
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 
    22 /**
    23  *  \file SDL_stdinc.h
    24  *
    25  *  This is a general header that includes C language support.
    26  */
    27 
    28 #ifndef _SDL_stdinc_h
    29 #define _SDL_stdinc_h
    30 
    31 #include "SDL_config.h"
    32 
    33 #ifdef HAVE_SYS_TYPES_H
    34 #include <sys/types.h>
    35 #endif
    36 #ifdef HAVE_STDIO_H
    37 #include <stdio.h>
    38 #endif
    39 #if defined(STDC_HEADERS)
    40 # include <stdlib.h>
    41 # include <stddef.h>
    42 # include <stdarg.h>
    43 #else
    44 # if defined(HAVE_STDLIB_H)
    45 #  include <stdlib.h>
    46 # elif defined(HAVE_MALLOC_H)
    47 #  include <malloc.h>
    48 # endif
    49 # if defined(HAVE_STDDEF_H)
    50 #  include <stddef.h>
    51 # endif
    52 # if defined(HAVE_STDARG_H)
    53 #  include <stdarg.h>
    54 # endif
    55 #endif
    56 #ifdef HAVE_STRING_H
    57 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
    58 #  include <memory.h>
    59 # endif
    60 # include <string.h>
    61 #endif
    62 #ifdef HAVE_STRINGS_H
    63 # include <strings.h>
    64 #endif
    65 #if defined(HAVE_INTTYPES_H)
    66 # include <inttypes.h>
    67 #elif defined(HAVE_STDINT_H)
    68 # include <stdint.h>
    69 #endif
    70 #ifdef HAVE_CTYPE_H
    71 # include <ctype.h>
    72 #endif
    73 #ifdef HAVE_MATH_H
    74 # include <math.h>
    75 #endif
    76 #if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
    77 # include <iconv.h>
    78 #endif
    79 
    80 /**
    81  *  The number of elements in an array.
    82  */
    83 #define SDL_arraysize(array)    (sizeof(array)/sizeof(array[0]))
    84 #define SDL_TABLESIZE(table)    SDL_arraysize(table)
    85 
    86 /**
    87  *  \name Cast operators
    88  *
    89  *  Use proper C++ casts when compiled as C++ to be compatible with the option
    90  *  -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
    91  */
    92 /*@{*/
    93 #ifdef __cplusplus
    94 #define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
    95 #define SDL_static_cast(type, expression) static_cast<type>(expression)
    96 #define SDL_const_cast(type, expression) const_cast<type>(expression)
    97 #else
    98 #define SDL_reinterpret_cast(type, expression) ((type)(expression))
    99 #define SDL_static_cast(type, expression) ((type)(expression))
   100 #define SDL_const_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 /**
   148  * \brief A signed 64-bit integer type.
   149  */
   150 typedef int64_t Sint64;
   151 /**
   152  * \brief An unsigned 64-bit integer type.
   153  */
   154 typedef uint64_t Uint64;
   155 
   156 /*@}*//*Basic data types*/
   157 
   158 
   159 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   160        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   161 /** \cond */
   162 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   163 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   164 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   165 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   166 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   167 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   168 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   169 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   170 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   171 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   172 /** \endcond */
   173 
   174 /* Check to make sure enums are the size of ints, for structure packing.
   175    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   176    enums having the size of an int must be enabled.
   177    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   178 */
   179 
   180 /** \cond */
   181 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   182 #if !defined(__ANDROID__)
   183    /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   184 typedef enum
   185 {
   186     DUMMY_ENUM_VALUE
   187 } SDL_DUMMY_ENUM;
   188 
   189 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   190 #endif
   191 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   192 /** \endcond */
   193 
   194 #include "begin_code.h"
   195 /* Set up for C function definitions, even when using C++ */
   196 #ifdef __cplusplus
   197 extern "C" {
   198 #endif
   199 
   200 #if defined(HAVE_ALLOCA) && !defined(alloca)
   201 # if defined(HAVE_ALLOCA_H)
   202 #  include <alloca.h>
   203 # elif defined(__GNUC__)
   204 #  define alloca __builtin_alloca
   205 # elif defined(_MSC_VER)
   206 #  include <malloc.h>
   207 #  define alloca _alloca
   208 # elif defined(__WATCOMC__)
   209 #  include <malloc.h>
   210 # elif defined(__BORLANDC__)
   211 #  include <malloc.h>
   212 # elif defined(__DMC__)
   213 #  include <stdlib.h>
   214 # elif defined(__AIX__)
   215 #pragma alloca
   216 # elif defined(__MRC__)
   217 void *alloca(unsigned);
   218 # else
   219 char *alloca();
   220 # endif
   221 #endif
   222 #ifdef HAVE_ALLOCA
   223 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   224 #define SDL_stack_free(data)
   225 #else
   226 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   227 #define SDL_stack_free(data)            SDL_free(data)
   228 #endif
   229 
   230 
   231 /* SDL stdinc inline functions:
   232 
   233    The theory here is that by default we forcibly inline what we can, and your
   234    app will use the inline version by default. However we expose a non-inline
   235    version too, so the symbol is always available in the library even if your app
   236    bypassed the inline version. The SDL_*_inline versions aren't guaranteed to
   237    exist, so never call them directly; use SDL_* instead, and trust the system
   238    to give you the right thing.
   239 
   240    The benefit here is that you can dlsym() these functions, which you
   241    couldn't if you had macros, you can link against a foreign build of SDL
   242    even if you configured differently, and you can drop the unconfigured SDL
   243    headers into a project without #defining HAVE_MALLOC (etc) and still link.
   244 */
   245 
   246 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   247 #ifdef HAVE_MALLOC
   248 SDL_FORCE_INLINE void *SDL_malloc_inline(size_t size) { return malloc(size); }
   249 #define SDL_malloc SDL_malloc_inline
   250 #endif
   251 
   252 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   253 #ifdef HAVE_CALLOC
   254 SDL_FORCE_INLINE void *SDL_calloc_inline(size_t nmemb, size_t size) { return calloc(nmemb, size); }
   255 #define SDL_calloc SDL_calloc_inline
   256 #endif
   257 
   258 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   259 #ifdef HAVE_REALLOC
   260 SDL_FORCE_INLINE void *SDL_realloc_inline(void *mem, size_t size) { return realloc(mem, size); }
   261 #define SDL_realloc SDL_realloc_inline
   262 #endif
   263 
   264 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   265 #ifdef HAVE_FREE
   266 SDL_FORCE_INLINE void SDL_free_inline(void *mem) { free(mem); }
   267 #define SDL_free SDL_free_inline
   268 #endif
   269 
   270 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   271 #ifdef HAVE_GETENV
   272 SDL_FORCE_INLINE char *SDL_getenv_inline(const char *name) { return getenv(name); }
   273 #define SDL_getenv SDL_getenv_inline
   274 #endif
   275 
   276 extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
   277 #ifdef HAVE_SETENV
   278 SDL_FORCE_INLINE int SDL_setenv_inline(const char *name, const char *value, int overwrite) { return setenv(name, value, overwrite); }
   279 #define SDL_setenv SDL_setenv_inline
   280 #endif
   281 
   282 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
   283 #ifdef HAVE_QSORT
   284 SDL_FORCE_INLINE void SDL_qsort_inline(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *)) { qsort(base, nmemb, size, compare); }
   285 #define SDL_qsort SDL_qsort_inline
   286 #endif
   287 
   288 extern DECLSPEC int SDLCALL SDL_abs(int x);
   289 #ifdef HAVE_ABS
   290 SDL_FORCE_INLINE int SDL_abs_inline(int x) { return abs(x); }
   291 #else
   292 SDL_FORCE_INLINE int SDL_abs_inline(int x) { return ((x) < 0 ? -(x) : (x)); }
   293 #endif
   294 #define SDL_abs SDL_abs_inline
   295 
   296 /* !!! FIXME: these have side effects. You probably shouldn't use them. */
   297 /* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
   298 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
   299 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
   300 
   301 extern DECLSPEC int SDLCALL SDL_isdigit(int x);
   302 extern DECLSPEC int SDLCALL SDL_isspace(int x);
   303 extern DECLSPEC int SDLCALL SDL_toupper(int x);
   304 extern DECLSPEC int SDLCALL SDL_tolower(int x);
   305 #ifdef HAVE_CTYPE_H
   306 SDL_FORCE_INLINE int SDL_isdigit_inline(int x) { return isdigit(x); }
   307 SDL_FORCE_INLINE int SDL_isspace_inline(int x) { return isspace(x); }
   308 SDL_FORCE_INLINE int SDL_toupper_inline(int x) { return toupper(x); }
   309 SDL_FORCE_INLINE int SDL_tolower_inline(int x) { return tolower(x); }
   310 #else
   311 SDL_FORCE_INLINE int SDL_isdigit_inline(int x) { return ((x) >= '0') && ((x) <= '9'); }
   312 SDL_FORCE_INLINE int SDL_isspace_inline(int x) { return ((x) == ' ') || ((x) == '\t') || ((x) == '\r') || ((x) == '\n'); }
   313 SDL_FORCE_INLINE int SDL_toupper_inline(int x) { return ((x) >= 'a') && ((x) <= 'z') ? ('A'+((x)-'a')) : (x); }
   314 SDL_FORCE_INLINE int SDL_tolower_inline(int x) { return ((x) >= 'A') && ((x) <= 'Z') ? ('a'+((x)-'A')) : (x); }
   315 #endif
   316 #define SDL_isdigit SDL_isdigit_inline
   317 #define SDL_isspace SDL_isspace_inline
   318 #define SDL_toupper SDL_toupper_inline
   319 #define SDL_tolower SDL_tolower_inline
   320 
   321 extern DECLSPEC void *SDLCALL SDL_memset(void *dst, int c, size_t len);
   322 #ifdef HAVE_MEMSET
   323 SDL_FORCE_INLINE void *SDL_memset_inline(void *dst, int c, size_t len) { return memset(dst, c, len); }
   324 #define SDL_memset SDL_memset_inline
   325 #endif
   326 
   327 #define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
   328 #define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
   329 
   330 /* !!! FIXME: does this _really_ beat memset() on any modern platform? */
   331 SDL_FORCE_INLINE void SDL_memset4(void *dst, int val, size_t len)
   332 {
   333 #if defined(__GNUC__) && defined(i386)
   334     int u0, u1, u2;
   335     __asm__ __volatile__ (
   336         "cld \n\t"
   337         "rep ; stosl \n\t"
   338         : "=&D" (u0), "=&a" (u1), "=&c" (u2)
   339         : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, len))
   340         : "memory"
   341     );
   342 /* !!! FIXME: amd64? */
   343 #else
   344     size_t _n = (len + 3) / 4;
   345     Uint32 *_p = SDL_static_cast(Uint32 *, dst);
   346     Uint32 _val = (val);
   347     if (len == 0)
   348         return;
   349     switch (len % 4)
   350     {
   351         case 0: do {    *_p++ = _val;
   352         case 3:         *_p++ = _val;
   353         case 2:         *_p++ = _val;
   354         case 1:         *_p++ = _val;
   355         } while ( --_n );
   356     }
   357 #endif
   358 }
   359 
   360 
   361 extern DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
   362 #if defined(__MACOSX__)
   363 SDL_FORCE_INLINE void *SDL_memcpy_inline(void *dst, const void *src, size_t len)
   364 {
   365     /* We can count on memcpy existing on Mac OS X and being well-tuned. */
   366     return memcpy(dst, src, len);
   367 }
   368 #define SDL_memcpy SDL_memcpy_inline
   369 #elif defined(__GNUC__) && defined(i386) && !defined(__WIN32__)
   370 SDL_FORCE_INLINE void *SDL_memcpy_inline(void *dst, const void *src, size_t len)
   371 {
   372     /* !!! FIXME: does this _really_ beat memcpy() on any modern platform? */
   373     /* !!! FIXME: shouldn't we just force the inputs to ecx/edi/esi instead of this tapdance with outputs? */
   374     /* !!! FIXME: amd64? */
   375     int u0, u1, u2;
   376     __asm__ __volatile__ (
   377         "cld \n\t"
   378         "rep ; movsl \n\t"
   379         "testb $2,%b4 \n\t"
   380         "je 1f \n\t"
   381         "movsw \n"
   382         "1:\ttestb $1,%b4 \n\t"
   383         "je 2f \n\t"
   384         "movsb \n"
   385         "2:"
   386         : "=&c" (u0), "=&D" (u1), "=&S" (u2)
   387         : "0" (SDL_static_cast(unsigned, len)/4), "q" (len), "1" (dst), "2" (src)
   388         : "memory"
   389     );
   390     return dst;
   391 }
   392 #define SDL_memcpy SDL_memcpy_inline
   393 #elif defined(HAVE_MEMCPY)
   394 SDL_FORCE_INLINE void *SDL_memcpy_inline(void *dst, const void *src, size_t len)
   395 {
   396     return memcpy(dst, src, len);
   397 }
   398 #define SDL_memcpy SDL_memcpy_inline
   399 #elif defined(HAVE_BCOPY)  /* !!! FIXME: is there _really_ ever a time where you have bcopy and not memcpy? */
   400 SDL_FORCE_INLINE void *SDL_memcpy_inline(void *dst, const void *src, size_t len)
   401 {
   402     bcopy(src, dst, len);
   403     return dst;
   404 }
   405 #define SDL_memcpy SDL_memcpy_inline
   406 #endif
   407 
   408 
   409 SDL_FORCE_INLINE void *SDL_memcpy4(void *dst, const void *src, size_t dwords)
   410 {
   411 #if defined(__GNUC__) && defined(i386)
   412     /* !!! FIXME: does this _really_ beat memcpy() on any modern platform? */
   413     /* !!! FIXME: shouldn't we just force the inputs to ecx/edi/esi instead of this tapdance with outputs? */
   414     int ecx, edi, esi;
   415     __asm__ __volatile__ (
   416         "cld \n\t"
   417         "rep ; movsl \n\t"
   418         : "=&c" (ecx), "=&D" (edi), "=&S" (esi)
   419         : "0" (SDL_static_cast(unsigned, dwords)), "1" (dst), "2" (src)
   420         : "memory"
   421     );
   422     return dst;
   423 #else
   424     return SDL_memcpy(dst, src, dwords * 4);
   425 #endif
   426 }
   427 
   428 extern DECLSPEC void *SDLCALL SDL_memmove(void *dst, const void *src, size_t len);
   429 #ifdef HAVE_MEMMOVE
   430 SDL_FORCE_INLINE void *SDL_memmove_inline(void *dst, const void *src, size_t len) { return memmove(dst, src, len); }
   431 #define SDL_memmove SDL_memmove_inline
   432 #endif
   433 
   434 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   435 #ifdef HAVE_MEMCMP
   436 SDL_FORCE_INLINE int SDL_memcmp_inline(const void *s1, const void *s2, size_t len) { return memcmp(s1, s2, len); }
   437 #define SDL_memcmp SDL_memcmp_inline
   438 #endif
   439 
   440 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
   441 #ifdef HAVE_STRLEN
   442 SDL_FORCE_INLINE size_t SDL_strlen_inline(const char *str) { return strlen(str); }
   443 #define SDL_strlen SDL_strlen_inline
   444 #endif
   445 
   446 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
   447 #ifdef HAVE_WCSLEN
   448 SDL_FORCE_INLINE size_t SDL_wcslen_inline(const wchar_t *wstr) { return wcslen(wstr); }
   449 #define SDL_wcslen SDL_wcslen_inline
   450 #endif
   451 
   452 extern DECLSPEC size_t SDLCALL SDL_wcslcpy(wchar_t *dst, const wchar_t *src, size_t maxlen);
   453 #ifdef HAVE_WCSLCPY
   454 SDL_FORCE_INLINE size_t SDL_wcslcpy_inline(wchar_t *dst, const wchar_t *src, size_t maxlen) { return wcslcpy(dst, src, maxlen); }
   455 #define SDL_wcslcpy SDL_wcslcpy_inline
   456 #endif
   457 
   458 extern DECLSPEC size_t SDLCALL SDL_wcslcat(wchar_t *dst, const wchar_t *src, size_t maxlen);
   459 #ifdef HAVE_WCSLCAT
   460 SDL_FORCE_INLINE size_t SDL_wcslcat_inline(wchar_t *dst, const wchar_t *src, size_t maxlen) { return wcslcat(dst, src, maxlen); }
   461 #define SDL_wcslcat SDL_wcslcat_inline
   462 #endif
   463 
   464 extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);
   465 #ifdef HAVE_STRLCPY
   466 SDL_FORCE_INLINE size_t SDL_strlcpy_inline(char *dst, const char *src, size_t maxlen) { return strlcpy(dst, src, maxlen); }
   467 #define SDL_strlcpy SDL_strlcpy_inline
   468 #else
   469 #endif
   470 
   471 extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(char *dst, const char *src, size_t dst_bytes);
   472 
   473 extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);
   474 #ifdef HAVE_STRLCAT
   475 SDL_FORCE_INLINE size_t SDL_strlcat_inline(char *dst, const char *src, size_t maxlen) { return strlcat(dst, src, maxlen); }
   476 #define SDL_strlcat SDL_strlcat_inline
   477 #endif
   478 
   479 extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
   480 #ifdef HAVE_STRDUP
   481 SDL_FORCE_INLINE char *SDL_strdup_inline(const char *str) { return strdup(str); }
   482 #define SDL_strdup SDL_strdup_inline
   483 #endif
   484 
   485 extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
   486 #ifdef HAVE__STRREV
   487 SDL_FORCE_INLINE char *SDL_strrev_inline(char *str) { return _strrev(str); }
   488 #define SDL_strrev SDL_strrev_inline
   489 #endif
   490 
   491 extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
   492 #ifdef HAVE__STRUPR
   493 SDL_FORCE_INLINE char *SDL_strupr_inline(char *str) { return _strupr(str); }
   494 #define SDL_strupr SDL_strupr_inline
   495 #endif
   496 
   497 extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
   498 #ifdef HAVE__STRLWR
   499 SDL_FORCE_INLINE char *SDL_strlwr_inline(char *str) { return _strlwr(str); }
   500 #define SDL_strlwr SDL_strlwr_inline
   501 #endif
   502 
   503 extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
   504 #ifdef HAVE_STRCHR
   505 SDL_FORCE_INLINE char *SDL_strchr_inline(const char *str, int c) { return SDL_const_cast(char*,strchr(str, c)); }
   506 #define SDL_strchr SDL_strchr_inline
   507 #elif defined(HAVE_INDEX)  /* !!! FIXME: is there anywhere that has this but not strchr? */
   508 SDL_FORCE_INLINE char *SDL_strchr_inline(const char *str, int c) { return SDL_const_cast(char*,index(str, c)); }
   509 #define SDL_strchr SDL_strchr_inline
   510 #endif
   511 
   512 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
   513 #ifdef HAVE_STRRCHR
   514 SDL_FORCE_INLINE char *SDL_strrchr_inline(const char *str, int c) { return SDL_const_cast(char*,strrchr(str, c)); }
   515 #define SDL_strrchr SDL_strrchr_inline
   516 #elif defined(HAVE_RINDEX)  /* !!! FIXME: is there anywhere that has this but not strrchr? */
   517 SDL_FORCE_INLINE char *SDL_strrchr_inline(const char *str, int c) { return SDL_const_cast(char*,rindex(str, c)); }
   518 #define SDL_strrchr SDL_strrchr_inline
   519 #endif
   520 
   521 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
   522 #ifdef HAVE_STRSTR
   523 SDL_FORCE_INLINE char *SDL_strstr_inline(const char *haystack, const char *needle) { return SDL_const_cast(char*,strstr(haystack, needle)); }
   524 #define SDL_strstr SDL_strstr_inline
   525 #endif
   526 
   527 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
   528 #ifdef HAVE__LTOA
   529 SDL_FORCE_INLINE char *SDL_ltoa_inline(long value, char *str, int radix) { return _ltoa(value, str, radix); }
   530 #define SDL_ltoa SDL_ltoa_inline
   531 #endif
   532 
   533 extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
   534 #ifdef HAVE_ITOA
   535 SDL_FORCE_INLINE char *SDL_itoa_inline(int value, char *str, int radix) { return itoa(value, str, radix); }
   536 #else
   537 SDL_FORCE_INLINE char *SDL_itoa_inline(int value, char *str, int radix) { return SDL_ltoa((long)value, str, radix); }
   538 #endif
   539 #define SDL_itoa SDL_itoa_inline
   540 
   541 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
   542 #ifdef HAVE__ULTOA
   543 SDL_FORCE_INLINE char *SDL_ultoa_inline(unsigned long value, char *str, int radix) { return _ultoa(value, str, radix); }
   544 #define SDL_ultoa SDL_ultoa_inline
   545 #endif
   546 
   547 extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
   548 #ifdef HAVE__UITOA
   549 SDL_FORCE_INLINE char *SDL_uitoa_inline(unsigned int value, char *str, int radix) { return _uitoa(value, str, radix); }
   550 #else
   551 SDL_FORCE_INLINE char *SDL_uitoa_inline(unsigned int value, char *str, int radix) { return SDL_ultoa((unsigned long)value, str, radix); }
   552 #endif
   553 #define SDL_uitoa SDL_uitoa_inline
   554 
   555 
   556 extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
   557 #ifdef HAVE_STRTOL
   558 SDL_FORCE_INLINE long SDL_strtol_inline(const char *str, char **endp, int base) { return strtol(str, endp, base); }
   559 #define SDL_strtol SDL_strtol_inline
   560 #endif
   561 
   562 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
   563 #ifdef HAVE_STRTOUL
   564 SDL_FORCE_INLINE unsigned long SDLCALL SDL_strtoul_inline(const char *str, char **endp, int base) { return strtoul(str, endp, base); }
   565 #define SDL_strtoul SDL_strtoul_inline
   566 #endif
   567 
   568 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
   569 #ifdef HAVE__I64TOA
   570 SDL_FORCE_INLINE char *SDL_lltoa_inline(Sint64 value, char *str, int radix) { return _i64toa(value, str, radix); }
   571 #define SDL_lltoa SDL_lltoa_inline
   572 #endif
   573 
   574 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
   575 #ifdef HAVE__UI64TOA
   576 SDL_FORCE_INLINE char *SDL_ulltoa_inline(Uint64 value, char *str, int radix) { return _ui64toa(value, str, radix); }
   577 #define SDL_ulltoa SDL_ulltoa_inline
   578 #endif
   579 
   580 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
   581 #ifdef HAVE_STRTOLL
   582 SDL_FORCE_INLINE Sint64 SDL_strtoll_inline(const char *str, char **endp, int base) { return strtoll(str, endp, base); }
   583 #define SDL_strtoll SDL_strtoll_inline
   584 #endif
   585 
   586 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
   587 #ifdef HAVE_STRTOULL
   588 SDL_FORCE_INLINE Uint64 SDL_strtoull_inline(const char *str, char **endp, int base) { return strtoull(str, endp, base); }
   589 #define SDL_strtoull SDL_strtoull_inline
   590 #endif
   591 
   592 extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
   593 #ifdef HAVE_STRTOD
   594 SDL_FORCE_INLINE double SDL_strtod_inline(const char *str, char **endp) { return strtod(str, endp); }
   595 #define SDL_strtod SDL_strtod_inline
   596 #endif
   597 
   598 extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
   599 #ifdef HAVE_ATOI
   600 SDL_FORCE_INLINE int SDL_atoi_inline(const char *str) { return atoi(str); }
   601 #else
   602 SDL_FORCE_INLINE int SDL_atoi_inline(const char *str) { return SDL_strtol(str, NULL, 0); }
   603 #endif
   604 #define SDL_atoi SDL_atoi_inline
   605 
   606 extern DECLSPEC double SDLCALL SDL_atof(const char *str);
   607 #ifdef HAVE_ATOF
   608 SDL_FORCE_INLINE double SDL_atof_inline(const char *str) { return (double) atof(str); }
   609 #else
   610 SDL_FORCE_INLINE double SDL_atof_inline(const char *str) { return SDL_strtod(str, NULL); }
   611 #endif
   612 #define SDL_atof SDL_atof_inline
   613 
   614 
   615 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   616 #ifdef HAVE_STRCMP
   617 SDL_FORCE_INLINE int SDL_strcmp_inline(const char *str1, const char *str2) { return strcmp(str1, str2); }
   618 #define SDL_strcmp SDL_strcmp_inline
   619 #endif
   620 
   621 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   622 #ifdef HAVE_STRNCMP
   623 SDL_FORCE_INLINE int SDL_strncmp_inline(const char *str1, const char *str2, size_t maxlen) { return strncmp(str1, str2, maxlen); }
   624 #define SDL_strncmp SDL_strncmp_inline
   625 #endif
   626 
   627 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   628 #ifdef HAVE_STRCASECMP
   629 SDL_FORCE_INLINE int SDL_strcasecmp_inline(const char *str1, const char *str2) { return strcasecmp(str1, str2); }
   630 #define SDL_strcasecmp SDL_strcasecmp_inline
   631 #elif defined(HAVE__STRICMP)
   632 SDL_FORCE_INLINE int SDL_strcasecmp_inline(const char *str1, const char *str2) { return _stricmp(str1, str2); }
   633 #define SDL_strcasecmp SDL_strcasecmp_inline
   634 #endif
   635 
   636 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
   637 #ifdef HAVE_STRNCASECMP
   638 SDL_FORCE_INLINE int SDL_strncasecmp_inline(const char *str1, const char *str2, size_t len) { return strncasecmp(str1, str2, len); }
   639 #define SDL_strncasecmp SDL_strncasecmp_inline
   640 #elif defined(HAVE__STRNICMP)
   641 SDL_FORCE_INLINE int SDL_strncasecmp_inline(const char *str1, const char *str2, size_t len) { return _strnicmp(str1, str2, len); }
   642 #define SDL_strncasecmp SDL_strncasecmp_inline
   643 #endif
   644 
   645 /* Not doing SDL_*_inline functions for these, because of the varargs. */
   646 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
   647 #ifdef HAVE_SSCANF
   648 #define SDL_sscanf sscanf
   649 #endif
   650 
   651 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
   652 #ifdef HAVE_SNPRINTF
   653 #define SDL_snprintf snprintf
   654 #endif
   655 
   656 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
   657 #ifdef HAVE_VSNPRINTF
   658 SDL_FORCE_INLINE int SDL_vsnprintf_inline(char *text, size_t maxlen, const char *fmt, va_list ap) { return vsnprintf(text, maxlen, fmt, ap); }
   659 #define SDL_vsnprintf SDL_vsnprintf_inline
   660 #endif
   661 
   662 #ifndef HAVE_M_PI
   663 #ifndef M_PI
   664 #define M_PI    3.14159265358979323846264338327950288   /* pi */
   665 #endif
   666 #endif
   667 
   668 extern DECLSPEC double SDLCALL SDL_atan(double x);
   669 #ifdef HAVE_ATAN
   670 SDL_FORCE_INLINE double SDL_atan_inline(double x) { return atan(x); }
   671 #define SDL_atan SDL_atan_inline
   672 #endif
   673 
   674 extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
   675 #ifdef HAVE_ATAN2
   676 SDL_FORCE_INLINE double SDL_atan2_inline(double x, double y) { return atan2(x, y); }
   677 #define SDL_atan2 SDL_atan2_inline
   678 #endif
   679 
   680 extern DECLSPEC double SDLCALL SDL_ceil(double x);
   681 #ifdef HAVE_CEIL
   682 SDL_FORCE_INLINE double SDL_ceil_inline(double x) { return ceil(x); }
   683 #else
   684 SDL_FORCE_INLINE double SDL_ceil_inline(double x) { return (double)(int)((x)+0.5); }
   685 #endif
   686 #define SDL_ceil SDL_ceil_inline
   687 
   688 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   689 #ifdef HAVE_COPYSIGN
   690 SDL_FORCE_INLINE double SDL_copysign_inline(double x, double y) { return copysign(x, y); }
   691 #define SDL_copysign SDL_copysign_inline
   692 #endif
   693 
   694 extern DECLSPEC double SDLCALL SDL_cos(double x);
   695 #ifdef HAVE_COS
   696 SDL_FORCE_INLINE double SDL_cos_inline(double x) { return cos(x); }
   697 #define SDL_cos SDL_cos_inline
   698 #endif
   699 
   700 extern DECLSPEC float SDLCALL SDL_cosf(float x);
   701 #ifdef HAVE_COSF
   702 SDL_FORCE_INLINE float SDL_cosf_inline(float x) { return cosf(x); }
   703 #else
   704 SDL_FORCE_INLINE float SDL_cosf_inline(float x) { return (float)SDL_cos((double)x); }
   705 #endif
   706 #define SDL_cosf SDL_cosf_inline
   707 
   708 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   709 #ifdef HAVE_FABS
   710 SDL_FORCE_INLINE double SDL_fabs_inline(double x) { return fabs(x); }
   711 #define SDL_fabs SDL_fabs_inline
   712 #endif
   713 
   714 extern DECLSPEC double SDLCALL SDL_floor(double x);
   715 #ifdef HAVE_FLOOR
   716 SDL_FORCE_INLINE double SDL_floor_inline(double x) { return floor(x); }
   717 #define SDL_floor SDL_floor_inline
   718 #endif
   719 
   720 extern DECLSPEC double SDLCALL SDL_log(double x);
   721 #ifdef HAVE_LOG
   722 SDL_FORCE_INLINE double SDL_log_inline(double x) { return log(x); }
   723 #define SDL_log SDL_log_inline
   724 #endif
   725 
   726 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   727 #ifdef HAVE_POW
   728 SDL_FORCE_INLINE double SDL_pow_inline(double x, double y) { return pow(x, y); }
   729 #define SDL_pow SDL_pow_inline
   730 #endif
   731 
   732 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   733 #ifdef HAVE_SCALBN
   734 SDL_FORCE_INLINE double SDL_scalbn_inline(double x, int n) { return scalbn(x, n); }
   735 #define SDL_scalbn SDL_scalbn_inline
   736 #endif
   737 
   738 extern DECLSPEC double SDLCALL SDL_sin(double x);
   739 #ifdef HAVE_SIN
   740 SDL_FORCE_INLINE double SDL_sin_inline(double x) { return sin(x); }
   741 #define SDL_sin SDL_sin_inline
   742 #endif
   743 
   744 extern DECLSPEC float SDLCALL SDL_sinf(float x);
   745 #ifdef HAVE_SINF
   746 SDL_FORCE_INLINE float SDL_sinf_inline(float x) { return sinf(x); }
   747 #else
   748 SDL_FORCE_INLINE float SDL_sinf_inline(float x) { return (float)SDL_sin((double)x); }
   749 #endif
   750 #define SDL_sinf SDL_sinf_inline
   751 
   752 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   753 #ifdef HAVE_SQRT
   754 SDL_FORCE_INLINE double SDL_sqrt_inline(double x) { return sqrt(x); }
   755 #define SDL_sqrt SDL_sqrt_inline
   756 #endif
   757 
   758 /* The SDL implementation of iconv() returns these error codes */
   759 #define SDL_ICONV_ERROR     (size_t)-1
   760 #define SDL_ICONV_E2BIG     (size_t)-2
   761 #define SDL_ICONV_EILSEQ    (size_t)-3
   762 #define SDL_ICONV_EINVAL    (size_t)-4
   763 
   764 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
   765 typedef struct _SDL_iconv_t *SDL_iconv_t;
   766 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   767                                                    const char *fromcode);
   768 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   769 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   770                                          size_t * inbytesleft, char **outbuf,
   771                                          size_t * outbytesleft);
   772 /**
   773  *  This function converts a string between encodings in one pass, returning a
   774  *  string that must be freed with SDL_free() or NULL on error.
   775  */
   776 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   777                                                const char *fromcode,
   778                                                const char *inbuf,
   779                                                size_t inbytesleft);
   780 #define SDL_iconv_utf8_locale(S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   781 #define SDL_iconv_utf8_ucs2(S)      (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   782 #define SDL_iconv_utf8_ucs4(S)      (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   783 
   784 /* Ends C function definitions when using C++ */
   785 #ifdef __cplusplus
   786 }
   787 #endif
   788 #include "close_code.h"
   789 
   790 #endif /* _SDL_stdinc_h */
   791 
   792 /* vi: set ts=4 sw=4 expandtab: */