include/SDL_stdinc.h
author Ryan C. Gordon <icculus@icculus.org>
Mon, 08 Apr 2013 18:37:50 -0400
changeset 7059 cd194e03c1da
parent 7057 c1563f514b5b
child 7076 1666f7a7494e
child 8460 f483e8bdae3c
permissions -rw-r--r--
More const_cast fixes for C++ apps using the public headers (thanks, Martin!).
     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 #else
    97 #define SDL_reinterpret_cast(type, expression) ((type)(expression))
    98 #define SDL_static_cast(type, expression) ((type)(expression))
    99 #endif
   100 /*@}*//*Cast operators*/
   101 
   102 /* Define a four character code as a Uint32 */
   103 #define SDL_FOURCC(A, B, C, D) \
   104     ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
   105      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
   106      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
   107      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
   108 
   109 /**
   110  *  \name Basic data types
   111  */
   112 /*@{*/
   113 
   114 typedef enum
   115 {
   116     SDL_FALSE = 0,
   117     SDL_TRUE = 1
   118 } SDL_bool;
   119 
   120 /**
   121  * \brief A signed 8-bit integer type.
   122  */
   123 typedef int8_t Sint8;
   124 /**
   125  * \brief An unsigned 8-bit integer type.
   126  */
   127 typedef uint8_t Uint8;
   128 /**
   129  * \brief A signed 16-bit integer type.
   130  */
   131 typedef int16_t Sint16;
   132 /**
   133  * \brief An unsigned 16-bit integer type.
   134  */
   135 typedef uint16_t Uint16;
   136 /**
   137  * \brief A signed 32-bit integer type.
   138  */
   139 typedef int32_t Sint32;
   140 /**
   141  * \brief An unsigned 32-bit integer type.
   142  */
   143 typedef uint32_t Uint32;
   144 
   145 /**
   146  * \brief A signed 64-bit integer type.
   147  */
   148 typedef int64_t Sint64;
   149 /**
   150  * \brief An unsigned 64-bit integer type.
   151  */
   152 typedef uint64_t Uint64;
   153 
   154 /*@}*//*Basic data types*/
   155 
   156 
   157 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   158        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   159 /** \cond */
   160 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   161 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   162 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   163 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   164 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   165 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   166 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   167 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   168 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   169 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   170 /** \endcond */
   171 
   172 /* Check to make sure enums are the size of ints, for structure packing.
   173    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   174    enums having the size of an int must be enabled.
   175    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   176 */
   177 
   178 /** \cond */
   179 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   180 #if !defined(__ANDROID__) 
   181    /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   182 typedef enum
   183 {
   184     DUMMY_ENUM_VALUE
   185 } SDL_DUMMY_ENUM;
   186 
   187 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   188 #endif
   189 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   190 /** \endcond */
   191 
   192 #include "begin_code.h"
   193 /* Set up for C function definitions, even when using C++ */
   194 #ifdef __cplusplus
   195 /* *INDENT-OFF* */
   196 extern "C" {
   197 /* *INDENT-ON* */
   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) {
   506 #ifdef __cplusplus
   507 return const_cast<char*>(strchr(str, c));
   508 #else
   509 return (char*)strchr(str, c);
   510 #endif
   511 }
   512 #define SDL_strchr SDL_strchr_inline
   513 #elif defined(HAVE_INDEX)  /* !!! FIXME: is there anywhere that has this but not strchr? */
   514 SDL_FORCE_INLINE char *SDL_strchr_inline(const char *str, int c) { return index(str, c); }
   515 #define SDL_strchr SDL_strchr_inline
   516 #endif
   517 
   518 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
   519 #ifdef HAVE_STRRCHR
   520 SDL_FORCE_INLINE char *SDL_strrchr_inline(const char *str, int c) {
   521 #ifdef __cplusplus
   522 return const_cast<char*>(strrchr(str, c));
   523 #else
   524 return (char*)strrchr(str, c);
   525 #endif
   526 }
   527 #define SDL_strrchr SDL_strrchr_inline
   528 #elif defined(HAVE_RINDEX)  /* !!! FIXME: is there anywhere that has this but not strrchr? */
   529 SDL_FORCE_INLINE char *SDL_strrchr_inline(const char *str, int c) {
   530 #ifdef __cplusplus
   531 return const_cast<char*>(rindex(str, c));
   532 #else
   533 return (char*)rindex(str, c);
   534 #endif
   535 }
   536 #define SDL_strrchr SDL_strrchr_inline
   537 #endif
   538 
   539 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
   540 #ifdef HAVE_STRSTR
   541 SDL_FORCE_INLINE char *SDL_strstr_inline(const char *haystack, const char *needle) {
   542 #ifdef __cplusplus
   543 return const_cast<char*>(strstr(haystack, needle));
   544 #else
   545 return (char*)strstr(haystack, needle);
   546 #endif
   547 }
   548 #define SDL_strstr SDL_strstr_inline
   549 #endif
   550 
   551 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
   552 #ifdef HAVE__LTOA
   553 SDL_FORCE_INLINE char *SDL_ltoa_inline(long value, char *str, int radix) { return _ltoa(value, str, radix); }
   554 #define SDL_ltoa SDL_ltoa_inline
   555 #endif
   556 
   557 extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
   558 #ifdef HAVE_ITOA
   559 SDL_FORCE_INLINE char *SDL_itoa_inline(int value, char *str, int radix) { return itoa(value, str, radix); }
   560 #else
   561 SDL_FORCE_INLINE char *SDL_itoa_inline(int value, char *str, int radix) { return SDL_ltoa((long)value, str, radix); }
   562 #endif
   563 #define SDL_itoa SDL_itoa_inline
   564 
   565 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
   566 #ifdef HAVE__ULTOA
   567 SDL_FORCE_INLINE char *SDL_ultoa_inline(unsigned long value, char *str, int radix) { return _ultoa(value, str, radix); }
   568 #define SDL_ultoa SDL_ultoa_inline
   569 #endif
   570 
   571 extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
   572 #ifdef HAVE__UITOA
   573 SDL_FORCE_INLINE char *SDL_uitoa_inline(unsigned int value, char *str, int radix) { return _uitoa(value, str, radix); }
   574 #else
   575 SDL_FORCE_INLINE char *SDL_uitoa_inline(unsigned int value, char *str, int radix) { return SDL_ultoa((unsigned long)value, str, radix); }
   576 #endif
   577 #define SDL_uitoa SDL_uitoa_inline
   578 
   579 
   580 extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
   581 #ifdef HAVE_STRTOL
   582 SDL_FORCE_INLINE long SDL_strtol_inline(const char *str, char **endp, int base) { return strtol(str, endp, base); }
   583 #define SDL_strtol SDL_strtol_inline
   584 #endif
   585 
   586 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
   587 #ifdef HAVE_STRTOUL
   588 SDL_FORCE_INLINE unsigned long SDLCALL SDL_strtoul_inline(const char *str, char **endp, int base) { return strtoul(str, endp, base); }
   589 #define SDL_strtoul SDL_strtoul_inline
   590 #endif
   591 
   592 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
   593 #ifdef HAVE__I64TOA
   594 SDL_FORCE_INLINE char *SDL_lltoa_inline(Sint64 value, char *str, int radix) { return _i64toa(value, str, radix); }
   595 #define SDL_lltoa SDL_lltoa_inline
   596 #endif
   597 
   598 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
   599 #ifdef HAVE__UI64TOA
   600 SDL_FORCE_INLINE char *SDL_ulltoa_inline(Uint64 value, char *str, int radix) { return _ui64toa(value, str, radix); }
   601 #define SDL_ulltoa SDL_ulltoa_inline
   602 #endif
   603 
   604 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
   605 #ifdef HAVE_STRTOLL
   606 SDL_FORCE_INLINE Sint64 SDL_strtoll_inline(const char *str, char **endp, int base) { return strtoll(str, endp, base); }
   607 #define SDL_strtoll SDL_strtoll_inline
   608 #endif
   609 
   610 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
   611 #ifdef HAVE_STRTOULL
   612 SDL_FORCE_INLINE Uint64 SDL_strtoull_inline(const char *str, char **endp, int base) { return strtoull(str, endp, base); }
   613 #define SDL_strtoull SDL_strtoull_inline
   614 #endif
   615 
   616 extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
   617 #ifdef HAVE_STRTOD
   618 SDL_FORCE_INLINE double SDL_strtod_inline(const char *str, char **endp) { return strtod(str, endp); }
   619 #define SDL_strtod SDL_strtod_inline
   620 #endif
   621 
   622 extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
   623 #ifdef HAVE_ATOI
   624 SDL_FORCE_INLINE int SDL_atoi_inline(const char *str) { return atoi(str); }
   625 #else
   626 SDL_FORCE_INLINE int SDL_atoi_inline(const char *str) { return SDL_strtol(str, NULL, 0); }
   627 #endif
   628 #define SDL_atoi SDL_atoi_inline
   629 
   630 extern DECLSPEC double SDLCALL SDL_atof(const char *str);
   631 #ifdef HAVE_ATOF
   632 SDL_FORCE_INLINE double SDL_atof_inline(const char *str) { return (double) atof(str); }
   633 #else
   634 SDL_FORCE_INLINE double SDL_atof_inline(const char *str) { return SDL_strtod(str, NULL); }
   635 #endif
   636 #define SDL_atof SDL_atof_inline
   637 
   638 
   639 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   640 #ifdef HAVE_STRCMP
   641 SDL_FORCE_INLINE int SDL_strcmp_inline(const char *str1, const char *str2) { return strcmp(str1, str2); }
   642 #define SDL_strcmp SDL_strcmp_inline
   643 #endif
   644 
   645 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   646 #ifdef HAVE_STRNCMP
   647 SDL_FORCE_INLINE int SDL_strncmp_inline(const char *str1, const char *str2, size_t maxlen) { return strncmp(str1, str2, maxlen); }
   648 #define SDL_strncmp SDL_strncmp_inline
   649 #endif
   650 
   651 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   652 #ifdef HAVE_STRCASECMP
   653 SDL_FORCE_INLINE int SDL_strcasecmp_inline(const char *str1, const char *str2) { return strcasecmp(str1, str2); }
   654 #define SDL_strcasecmp SDL_strcasecmp_inline
   655 #elif defined(HAVE__STRICMP)
   656 SDL_FORCE_INLINE int SDL_strcasecmp_inline(const char *str1, const char *str2) { return _stricmp(str1, str2); }
   657 #define SDL_strcasecmp SDL_strcasecmp_inline
   658 #endif
   659 
   660 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
   661 #ifdef HAVE_STRNCASECMP
   662 SDL_FORCE_INLINE int SDL_strncasecmp_inline(const char *str1, const char *str2, size_t len) { return strncasecmp(str1, str2, len); }
   663 #define SDL_strncasecmp SDL_strncasecmp_inline
   664 #elif defined(HAVE__STRNICMP)
   665 SDL_FORCE_INLINE int SDL_strncasecmp_inline(const char *str1, const char *str2, size_t len) { return _strnicmp(str1, str2, len); }
   666 #define SDL_strncasecmp SDL_strncasecmp_inline
   667 #endif
   668 
   669 /* Not doing SDL_*_inline functions for these, because of the varargs. */
   670 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
   671 #ifdef HAVE_SSCANF
   672 #define SDL_sscanf sscanf
   673 #endif
   674 
   675 extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
   676 #ifdef HAVE_SNPRINTF
   677 #define SDL_snprintf snprintf
   678 #endif
   679 
   680 extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
   681 #ifdef HAVE_VSNPRINTF
   682 SDL_FORCE_INLINE int SDL_vsnprintf_inline(char *text, size_t maxlen, const char *fmt, va_list ap) { return vsnprintf(text, maxlen, fmt, ap); }
   683 #define SDL_vsnprintf SDL_vsnprintf_inline
   684 #endif
   685 
   686 #ifndef HAVE_M_PI
   687 #ifndef M_PI
   688 #define M_PI    3.14159265358979323846264338327950288   /* pi */
   689 #endif
   690 #endif
   691 
   692 extern DECLSPEC double SDLCALL SDL_atan(double x);
   693 #ifdef HAVE_ATAN
   694 SDL_FORCE_INLINE double SDL_atan_inline(double x) { return atan(x); }
   695 #define SDL_atan SDL_atan_inline
   696 #endif
   697 
   698 extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
   699 #ifdef HAVE_ATAN2
   700 SDL_FORCE_INLINE double SDL_atan2_inline(double x, double y) { return atan2(x, y); }
   701 #define SDL_atan2 SDL_atan2_inline
   702 #endif
   703 
   704 extern DECLSPEC double SDLCALL SDL_ceil(double x);
   705 #ifdef HAVE_CEIL
   706 SDL_FORCE_INLINE double SDL_ceil_inline(double x) { return ceil(x); }
   707 #else
   708 SDL_FORCE_INLINE double SDL_ceil_inline(double x) { return (double)(int)((x)+0.5); }
   709 #endif
   710 #define SDL_ceil SDL_ceil_inline
   711 
   712 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   713 #ifdef HAVE_COPYSIGN
   714 SDL_FORCE_INLINE double SDL_copysign_inline(double x, double y) { return copysign(x, y); }
   715 #define SDL_copysign SDL_copysign_inline
   716 #endif
   717 
   718 extern DECLSPEC double SDLCALL SDL_cos(double x);
   719 #ifdef HAVE_COS
   720 SDL_FORCE_INLINE double SDL_cos_inline(double x) { return cos(x); }
   721 #define SDL_cos SDL_cos_inline
   722 #endif
   723 
   724 extern DECLSPEC float SDLCALL SDL_cosf(float x);
   725 #ifdef HAVE_COSF
   726 SDL_FORCE_INLINE float SDL_cosf_inline(float x) { return cosf(x); }
   727 #else
   728 SDL_FORCE_INLINE float SDL_cosf_inline(float x) { return (float)SDL_cos((double)x); }
   729 #endif
   730 #define SDL_cosf SDL_cosf_inline
   731 
   732 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   733 #ifdef HAVE_FABS
   734 SDL_FORCE_INLINE double SDL_fabs_inline(double x) { return fabs(x); }
   735 #define SDL_fabs SDL_fabs_inline
   736 #endif
   737 
   738 extern DECLSPEC double SDLCALL SDL_floor(double x);
   739 #ifdef HAVE_FLOOR
   740 SDL_FORCE_INLINE double SDL_floor_inline(double x) { return floor(x); }
   741 #define SDL_floor SDL_floor_inline
   742 #endif
   743 
   744 extern DECLSPEC double SDLCALL SDL_log(double x);
   745 #ifdef HAVE_LOG
   746 SDL_FORCE_INLINE double SDL_log_inline(double x) { return log(x); }
   747 #define SDL_log SDL_log_inline
   748 #endif
   749 
   750 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   751 #ifdef HAVE_POW
   752 SDL_FORCE_INLINE double SDL_pow_inline(double x, double y) { return pow(x, y); }
   753 #define SDL_pow SDL_pow_inline
   754 #endif
   755 
   756 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   757 #ifdef HAVE_SCALBN
   758 SDL_FORCE_INLINE double SDL_scalbn_inline(double x, int n) { return scalbn(x, n); }
   759 #define SDL_scalbn SDL_scalbn_inline
   760 #endif
   761 
   762 extern DECLSPEC double SDLCALL SDL_sin(double x);
   763 #ifdef HAVE_SIN
   764 SDL_FORCE_INLINE double SDL_sin_inline(double x) { return sin(x); }
   765 #define SDL_sin SDL_sin_inline
   766 #endif
   767 
   768 extern DECLSPEC float SDLCALL SDL_sinf(float x);
   769 #ifdef HAVE_SINF
   770 SDL_FORCE_INLINE float SDL_sinf_inline(float x) { return sinf(x); }
   771 #else
   772 SDL_FORCE_INLINE float SDL_sinf_inline(float x) { return (float)SDL_sin((double)x); }
   773 #endif
   774 #define SDL_sinf SDL_sinf_inline
   775 
   776 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   777 #ifdef HAVE_SQRT
   778 SDL_FORCE_INLINE double SDL_sqrt_inline(double x) { return sqrt(x); }
   779 #define SDL_sqrt SDL_sqrt_inline
   780 #endif
   781 
   782 /* The SDL implementation of iconv() returns these error codes */
   783 #define SDL_ICONV_ERROR		(size_t)-1
   784 #define SDL_ICONV_E2BIG		(size_t)-2
   785 #define SDL_ICONV_EILSEQ	(size_t)-3
   786 #define SDL_ICONV_EINVAL	(size_t)-4
   787 
   788 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
   789 typedef struct _SDL_iconv_t *SDL_iconv_t;
   790 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   791                                                    const char *fromcode);
   792 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   793 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   794                                          size_t * inbytesleft, char **outbuf,
   795                                          size_t * outbytesleft);
   796 /**
   797  *  This function converts a string between encodings in one pass, returning a
   798  *  string that must be freed with SDL_free() or NULL on error.
   799  */
   800 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   801                                                const char *fromcode,
   802                                                const char *inbuf,
   803                                                size_t inbytesleft);
   804 #define SDL_iconv_utf8_locale(S)	SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   805 #define SDL_iconv_utf8_ucs2(S)		(Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   806 #define SDL_iconv_utf8_ucs4(S)		(Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   807 
   808 /* Ends C function definitions when using C++ */
   809 #ifdef __cplusplus
   810 /* *INDENT-OFF* */
   811 }
   812 /* *INDENT-ON* */
   813 #endif
   814 #include "close_code.h"
   815 
   816 #endif /* _SDL_stdinc_h */
   817 
   818 /* vi: set ts=4 sw=4 expandtab: */