include/SDL_stdinc.h
author Ozkan Sezer
Thu, 29 Oct 2020 20:00:20 +0300
changeset 14209 467540bb2114
parent 13940 92ea0212b095
child 14309 dbc6eb98c6ad
permissions -rw-r--r--
SDL_stdinc.h: define _DARWIN_C_SOURCE on macOS for memset_pattern4()

hopefully fixes https://bugzilla.libsdl.org/show_bug.cgi?id=5107
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2020 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 __APPLE__
    34 #define _DARWIN_C_SOURCE /* for memset_pattern4() */
    35 #endif
    36 
    37 #ifdef HAVE_SYS_TYPES_H
    38 #include <sys/types.h>
    39 #endif
    40 #ifdef HAVE_STDIO_H
    41 #include <stdio.h>
    42 #endif
    43 #if defined(STDC_HEADERS)
    44 # include <stdlib.h>
    45 # include <stddef.h>
    46 # include <stdarg.h>
    47 #else
    48 # if defined(HAVE_STDLIB_H)
    49 #  include <stdlib.h>
    50 # elif defined(HAVE_MALLOC_H)
    51 #  include <malloc.h>
    52 # endif
    53 # if defined(HAVE_STDDEF_H)
    54 #  include <stddef.h>
    55 # endif
    56 # if defined(HAVE_STDARG_H)
    57 #  include <stdarg.h>
    58 # endif
    59 #endif
    60 #ifdef HAVE_STRING_H
    61 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
    62 #  include <memory.h>
    63 # endif
    64 # include <string.h>
    65 #endif
    66 #ifdef HAVE_STRINGS_H
    67 # include <strings.h>
    68 #endif
    69 #ifdef HAVE_WCHAR_H
    70 # include <wchar.h>
    71 #endif
    72 #if defined(HAVE_INTTYPES_H)
    73 # include <inttypes.h>
    74 #elif defined(HAVE_STDINT_H)
    75 # include <stdint.h>
    76 #endif
    77 #ifdef HAVE_CTYPE_H
    78 # include <ctype.h>
    79 #endif
    80 #ifdef HAVE_MATH_H
    81 # if defined(__WINRT__)
    82 /* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
    83    WinRT.  See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
    84    for more information.
    85 */
    86 #  define _USE_MATH_DEFINES
    87 # endif
    88 # include <math.h>
    89 #endif
    90 #ifdef HAVE_FLOAT_H
    91 # include <float.h>
    92 #endif
    93 #if defined(HAVE_ALLOCA) && !defined(alloca)
    94 # if defined(HAVE_ALLOCA_H)
    95 #  include <alloca.h>
    96 # elif defined(__GNUC__)
    97 #  define alloca __builtin_alloca
    98 # elif defined(_MSC_VER)
    99 #  include <malloc.h>
   100 #  define alloca _alloca
   101 # elif defined(__WATCOMC__)
   102 #  include <malloc.h>
   103 # elif defined(__BORLANDC__)
   104 #  include <malloc.h>
   105 # elif defined(__DMC__)
   106 #  include <stdlib.h>
   107 # elif defined(__AIX__)
   108 #pragma alloca
   109 # elif defined(__MRC__)
   110 void *alloca(unsigned);
   111 # else
   112 char *alloca();
   113 # endif
   114 #endif
   115 
   116 /**
   117  *  The number of elements in an array.
   118  */
   119 #define SDL_arraysize(array)    (sizeof(array)/sizeof(array[0]))
   120 #define SDL_TABLESIZE(table)    SDL_arraysize(table)
   121 
   122 /**
   123  *  Macro useful for building other macros with strings in them
   124  *
   125  *  e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
   126  */
   127 #define SDL_STRINGIFY_ARG(arg)  #arg
   128 
   129 /**
   130  *  \name Cast operators
   131  *
   132  *  Use proper C++ casts when compiled as C++ to be compatible with the option
   133  *  -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
   134  */
   135 /* @{ */
   136 #ifdef __cplusplus
   137 #define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
   138 #define SDL_static_cast(type, expression) static_cast<type>(expression)
   139 #define SDL_const_cast(type, expression) const_cast<type>(expression)
   140 #else
   141 #define SDL_reinterpret_cast(type, expression) ((type)(expression))
   142 #define SDL_static_cast(type, expression) ((type)(expression))
   143 #define SDL_const_cast(type, expression) ((type)(expression))
   144 #endif
   145 /* @} *//* Cast operators */
   146 
   147 /* Define a four character code as a Uint32 */
   148 #define SDL_FOURCC(A, B, C, D) \
   149     ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
   150      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
   151      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
   152      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
   153 
   154 /**
   155  *  \name Basic data types
   156  */
   157 /* @{ */
   158 
   159 #ifdef __CC_ARM
   160 /* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
   161 #define SDL_FALSE 0
   162 #define SDL_TRUE 1
   163 typedef int SDL_bool;
   164 #else
   165 typedef enum
   166 {
   167     SDL_FALSE = 0,
   168     SDL_TRUE = 1
   169 } SDL_bool;
   170 #endif
   171 
   172 /**
   173  * \brief A signed 8-bit integer type.
   174  */
   175 #define SDL_MAX_SINT8   ((Sint8)0x7F)           /* 127 */
   176 #define SDL_MIN_SINT8   ((Sint8)(~0x7F))        /* -128 */
   177 typedef int8_t Sint8;
   178 /**
   179  * \brief An unsigned 8-bit integer type.
   180  */
   181 #define SDL_MAX_UINT8   ((Uint8)0xFF)           /* 255 */
   182 #define SDL_MIN_UINT8   ((Uint8)0x00)           /* 0 */
   183 typedef uint8_t Uint8;
   184 /**
   185  * \brief A signed 16-bit integer type.
   186  */
   187 #define SDL_MAX_SINT16  ((Sint16)0x7FFF)        /* 32767 */
   188 #define SDL_MIN_SINT16  ((Sint16)(~0x7FFF))     /* -32768 */
   189 typedef int16_t Sint16;
   190 /**
   191  * \brief An unsigned 16-bit integer type.
   192  */
   193 #define SDL_MAX_UINT16  ((Uint16)0xFFFF)        /* 65535 */
   194 #define SDL_MIN_UINT16  ((Uint16)0x0000)        /* 0 */
   195 typedef uint16_t Uint16;
   196 /**
   197  * \brief A signed 32-bit integer type.
   198  */
   199 #define SDL_MAX_SINT32  ((Sint32)0x7FFFFFFF)    /* 2147483647 */
   200 #define SDL_MIN_SINT32  ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
   201 typedef int32_t Sint32;
   202 /**
   203  * \brief An unsigned 32-bit integer type.
   204  */
   205 #define SDL_MAX_UINT32  ((Uint32)0xFFFFFFFFu)   /* 4294967295 */
   206 #define SDL_MIN_UINT32  ((Uint32)0x00000000)    /* 0 */
   207 typedef uint32_t Uint32;
   208 
   209 /**
   210  * \brief A signed 64-bit integer type.
   211  */
   212 #define SDL_MAX_SINT64  ((Sint64)0x7FFFFFFFFFFFFFFFll)      /* 9223372036854775807 */
   213 #define SDL_MIN_SINT64  ((Sint64)(~0x7FFFFFFFFFFFFFFFll))   /* -9223372036854775808 */
   214 typedef int64_t Sint64;
   215 /**
   216  * \brief An unsigned 64-bit integer type.
   217  */
   218 #define SDL_MAX_UINT64  ((Uint64)0xFFFFFFFFFFFFFFFFull)     /* 18446744073709551615 */
   219 #define SDL_MIN_UINT64  ((Uint64)(0x0000000000000000ull))   /* 0 */
   220 typedef uint64_t Uint64;
   221 
   222 /* @} *//* Basic data types */
   223 
   224 /* Make sure we have macros for printing 64 bit values.
   225  * <stdint.h> should define these but this is not true all platforms.
   226  * (for example win32) */
   227 #ifndef SDL_PRIs64
   228 #ifdef PRIs64
   229 #define SDL_PRIs64 PRIs64
   230 #elif defined(__WIN32__)
   231 #define SDL_PRIs64 "I64d"
   232 #elif defined(__LINUX__) && defined(__LP64__)
   233 #define SDL_PRIs64 "ld"
   234 #else
   235 #define SDL_PRIs64 "lld"
   236 #endif
   237 #endif
   238 #ifndef SDL_PRIu64
   239 #ifdef PRIu64
   240 #define SDL_PRIu64 PRIu64
   241 #elif defined(__WIN32__)
   242 #define SDL_PRIu64 "I64u"
   243 #elif defined(__LINUX__) && defined(__LP64__)
   244 #define SDL_PRIu64 "lu"
   245 #else
   246 #define SDL_PRIu64 "llu"
   247 #endif
   248 #endif
   249 #ifndef SDL_PRIx64
   250 #ifdef PRIx64
   251 #define SDL_PRIx64 PRIx64
   252 #elif defined(__WIN32__)
   253 #define SDL_PRIx64 "I64x"
   254 #elif defined(__LINUX__) && defined(__LP64__)
   255 #define SDL_PRIx64 "lx"
   256 #else
   257 #define SDL_PRIx64 "llx"
   258 #endif
   259 #endif
   260 #ifndef SDL_PRIX64
   261 #ifdef PRIX64
   262 #define SDL_PRIX64 PRIX64
   263 #elif defined(__WIN32__)
   264 #define SDL_PRIX64 "I64X"
   265 #elif defined(__LINUX__) && defined(__LP64__)
   266 #define SDL_PRIX64 "lX"
   267 #else
   268 #define SDL_PRIX64 "llX"
   269 #endif
   270 #endif
   271 
   272 /* Annotations to help code analysis tools */
   273 #ifdef SDL_DISABLE_ANALYZE_MACROS
   274 #define SDL_IN_BYTECAP(x)
   275 #define SDL_INOUT_Z_CAP(x)
   276 #define SDL_OUT_Z_CAP(x)
   277 #define SDL_OUT_CAP(x)
   278 #define SDL_OUT_BYTECAP(x)
   279 #define SDL_OUT_Z_BYTECAP(x)
   280 #define SDL_PRINTF_FORMAT_STRING
   281 #define SDL_SCANF_FORMAT_STRING
   282 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   283 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   284 #else
   285 #if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
   286 #include <sal.h>
   287 
   288 #define SDL_IN_BYTECAP(x) _In_bytecount_(x)
   289 #define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
   290 #define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
   291 #define SDL_OUT_CAP(x) _Out_cap_(x)
   292 #define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
   293 #define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
   294 
   295 #define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
   296 #define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
   297 #else
   298 #define SDL_IN_BYTECAP(x)
   299 #define SDL_INOUT_Z_CAP(x)
   300 #define SDL_OUT_Z_CAP(x)
   301 #define SDL_OUT_CAP(x)
   302 #define SDL_OUT_BYTECAP(x)
   303 #define SDL_OUT_Z_BYTECAP(x)
   304 #define SDL_PRINTF_FORMAT_STRING
   305 #define SDL_SCANF_FORMAT_STRING
   306 #endif
   307 #if defined(__GNUC__)
   308 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
   309 #define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
   310 #else
   311 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   312 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   313 #endif
   314 #endif /* SDL_DISABLE_ANALYZE_MACROS */
   315 
   316 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   317        typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
   318 /** \cond */
   319 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   320 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   321 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   322 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   323 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   324 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   325 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   326 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   327 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   328 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   329 /** \endcond */
   330 
   331 /* Check to make sure enums are the size of ints, for structure packing.
   332    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   333    enums having the size of an int must be enabled.
   334    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   335 */
   336 
   337 /** \cond */
   338 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   339 #if !defined(__ANDROID__)
   340    /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   341 typedef enum
   342 {
   343     DUMMY_ENUM_VALUE
   344 } SDL_DUMMY_ENUM;
   345 
   346 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   347 #endif
   348 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   349 /** \endcond */
   350 
   351 #include "begin_code.h"
   352 /* Set up for C function definitions, even when using C++ */
   353 #ifdef __cplusplus
   354 extern "C" {
   355 #endif
   356 
   357 #ifdef HAVE_ALLOCA
   358 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   359 #define SDL_stack_free(data)
   360 #else
   361 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   362 #define SDL_stack_free(data)            SDL_free(data)
   363 #endif
   364 
   365 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   366 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   367 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   368 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   369 
   370 typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
   371 typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
   372 typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
   373 typedef void (SDLCALL *SDL_free_func)(void *mem);
   374 
   375 /**
   376  *  \brief Get the current set of SDL memory functions
   377  */
   378 extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
   379                                                     SDL_calloc_func *calloc_func,
   380                                                     SDL_realloc_func *realloc_func,
   381                                                     SDL_free_func *free_func);
   382 
   383 /**
   384  *  \brief Replace SDL's memory allocation functions with a custom set
   385  *
   386  *  \note If you are replacing SDL's memory functions, you should call
   387  *        SDL_GetNumAllocations() and be very careful if it returns non-zero.
   388  *        That means that your free function will be called with memory
   389  *        allocated by the previous memory allocation functions.
   390  */
   391 extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
   392                                                    SDL_calloc_func calloc_func,
   393                                                    SDL_realloc_func realloc_func,
   394                                                    SDL_free_func free_func);
   395 
   396 /**
   397  *  \brief Get the number of outstanding (unfreed) allocations
   398  */
   399 extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
   400 
   401 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   402 extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
   403 
   404 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
   405 
   406 extern DECLSPEC int SDLCALL SDL_abs(int x);
   407 
   408 /* !!! FIXME: these have side effects. You probably shouldn't use them. */
   409 /* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
   410 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
   411 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
   412 
   413 extern DECLSPEC int SDLCALL SDL_isdigit(int x);
   414 extern DECLSPEC int SDLCALL SDL_isspace(int x);
   415 extern DECLSPEC int SDLCALL SDL_isupper(int x);
   416 extern DECLSPEC int SDLCALL SDL_islower(int x);
   417 extern DECLSPEC int SDLCALL SDL_toupper(int x);
   418 extern DECLSPEC int SDLCALL SDL_tolower(int x);
   419 
   420 extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
   421 
   422 #define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
   423 #define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
   424 #define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
   425 
   426 /* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
   427 SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
   428 {
   429 #ifdef __APPLE__
   430     memset_pattern4(dst, &val, dwords * 4);
   431 #elif defined(__GNUC__) && defined(i386)
   432     int u0, u1, u2;
   433     __asm__ __volatile__ (
   434         "cld \n\t"
   435         "rep ; stosl \n\t"
   436         : "=&D" (u0), "=&a" (u1), "=&c" (u2)
   437         : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
   438         : "memory"
   439     );
   440 #else
   441     size_t _n = (dwords + 3) / 4;
   442     Uint32 *_p = SDL_static_cast(Uint32 *, dst);
   443     Uint32 _val = (val);
   444     if (dwords == 0)
   445         return;
   446     switch (dwords % 4)
   447     {
   448         case 0: do {    *_p++ = _val;   /* fallthrough */
   449         case 3:         *_p++ = _val;   /* fallthrough */
   450         case 2:         *_p++ = _val;   /* fallthrough */
   451         case 1:         *_p++ = _val;   /* fallthrough */
   452         } while ( --_n );
   453     }
   454 #endif
   455 }
   456 
   457 extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   458 
   459 extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   460 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   461 
   462 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
   463 extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   464 extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   465 extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
   466 extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
   467 
   468 extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
   469 extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
   470 
   471 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
   472 extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   473 extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
   474 extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   475 extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
   476 extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
   477 extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
   478 extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
   479 extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
   480 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
   481 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
   482 extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
   483 extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
   484 
   485 extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
   486 extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
   487 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
   488 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
   489 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
   490 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
   491 
   492 extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
   493 extern DECLSPEC double SDLCALL SDL_atof(const char *str);
   494 extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
   495 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
   496 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
   497 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
   498 extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
   499 
   500 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   501 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   502 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   503 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
   504 
   505 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
   506 extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
   507 extern DECLSPEC int SDLCALL SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ... ) SDL_PRINTF_VARARG_FUNC(3);
   508 extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
   509 
   510 #ifndef HAVE_M_PI
   511 #ifndef M_PI
   512 #define M_PI    3.14159265358979323846264338327950288   /**< pi */
   513 #endif
   514 #endif
   515 
   516 extern DECLSPEC double SDLCALL SDL_acos(double x);
   517 extern DECLSPEC float SDLCALL SDL_acosf(float x);
   518 extern DECLSPEC double SDLCALL SDL_asin(double x);
   519 extern DECLSPEC float SDLCALL SDL_asinf(float x);
   520 extern DECLSPEC double SDLCALL SDL_atan(double x);
   521 extern DECLSPEC float SDLCALL SDL_atanf(float x);
   522 extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
   523 extern DECLSPEC float SDLCALL SDL_atan2f(float x, float y);
   524 extern DECLSPEC double SDLCALL SDL_ceil(double x);
   525 extern DECLSPEC float SDLCALL SDL_ceilf(float x);
   526 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   527 extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
   528 extern DECLSPEC double SDLCALL SDL_cos(double x);
   529 extern DECLSPEC float SDLCALL SDL_cosf(float x);
   530 extern DECLSPEC double SDLCALL SDL_exp(double x);
   531 extern DECLSPEC float SDLCALL SDL_expf(float x);
   532 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   533 extern DECLSPEC float SDLCALL SDL_fabsf(float x);
   534 extern DECLSPEC double SDLCALL SDL_floor(double x);
   535 extern DECLSPEC float SDLCALL SDL_floorf(float x);
   536 extern DECLSPEC double SDLCALL SDL_trunc(double x);
   537 extern DECLSPEC float SDLCALL SDL_truncf(float x);
   538 extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
   539 extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
   540 extern DECLSPEC double SDLCALL SDL_log(double x);
   541 extern DECLSPEC float SDLCALL SDL_logf(float x);
   542 extern DECLSPEC double SDLCALL SDL_log10(double x);
   543 extern DECLSPEC float SDLCALL SDL_log10f(float x);
   544 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   545 extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
   546 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   547 extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
   548 extern DECLSPEC double SDLCALL SDL_sin(double x);
   549 extern DECLSPEC float SDLCALL SDL_sinf(float x);
   550 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   551 extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
   552 extern DECLSPEC double SDLCALL SDL_tan(double x);
   553 extern DECLSPEC float SDLCALL SDL_tanf(float x);
   554 
   555 /* The SDL implementation of iconv() returns these error codes */
   556 #define SDL_ICONV_ERROR     (size_t)-1
   557 #define SDL_ICONV_E2BIG     (size_t)-2
   558 #define SDL_ICONV_EILSEQ    (size_t)-3
   559 #define SDL_ICONV_EINVAL    (size_t)-4
   560 
   561 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
   562 typedef struct _SDL_iconv_t *SDL_iconv_t;
   563 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   564                                                    const char *fromcode);
   565 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   566 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   567                                          size_t * inbytesleft, char **outbuf,
   568                                          size_t * outbytesleft);
   569 /**
   570  *  This function converts a string between encodings in one pass, returning a
   571  *  string that must be freed with SDL_free() or NULL on error.
   572  */
   573 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   574                                                const char *fromcode,
   575                                                const char *inbuf,
   576                                                size_t inbytesleft);
   577 #define SDL_iconv_utf8_locale(S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   578 #define SDL_iconv_utf8_ucs2(S)      (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   579 #define SDL_iconv_utf8_ucs4(S)      (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   580 
   581 /* force builds using Clang's static analysis tools to use literal C runtime
   582    here, since there are possibly tests that are ineffective otherwise. */
   583 #if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
   584 
   585 /* The analyzer knows about strlcpy even when the system doesn't provide it */
   586 #ifndef HAVE_STRLCPY
   587 size_t strlcpy(char* dst, const char* src, size_t size);
   588 #endif
   589 
   590 /* The analyzer knows about strlcat even when the system doesn't provide it */
   591 #ifndef HAVE_STRLCAT
   592 size_t strlcat(char* dst, const char* src, size_t size);
   593 #endif
   594 
   595 #define SDL_malloc malloc
   596 #define SDL_calloc calloc
   597 #define SDL_realloc realloc
   598 #define SDL_free free
   599 #define SDL_memset memset
   600 #define SDL_memcpy memcpy
   601 #define SDL_memmove memmove
   602 #define SDL_memcmp memcmp
   603 #define SDL_strlcpy strlcpy
   604 #define SDL_strlcat strlcat
   605 #define SDL_strlen strlen
   606 #define SDL_wcslen wcslen
   607 #define SDL_wcslcpy wcslcpy
   608 #define SDL_wcslcat wcslcat
   609 #define SDL_strdup strdup
   610 #define SDL_wcsdup wcsdup
   611 #define SDL_strchr strchr
   612 #define SDL_strrchr strrchr
   613 #define SDL_strstr strstr
   614 #define SDL_wcsstr wcsstr
   615 #define SDL_strtokr strtok_r
   616 #define SDL_strcmp strcmp
   617 #define SDL_wcscmp wcscmp
   618 #define SDL_strncmp strncmp
   619 #define SDL_wcsncmp wcsncmp
   620 #define SDL_strcasecmp strcasecmp
   621 #define SDL_strncasecmp strncasecmp
   622 #define SDL_sscanf sscanf
   623 #define SDL_vsscanf vsscanf
   624 #define SDL_snprintf snprintf
   625 #define SDL_vsnprintf vsnprintf
   626 #endif
   627 
   628 SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
   629 {
   630     return SDL_memcpy(dst, src, dwords * 4);
   631 }
   632 
   633 /* Ends C function definitions when using C++ */
   634 #ifdef __cplusplus
   635 }
   636 #endif
   637 #include "close_code.h"
   638 
   639 #endif /* SDL_stdinc_h_ */
   640 
   641 /* vi: set ts=4 sw=4 expandtab: */