include/SDL_stdinc.h
author Sam Lantinga <slouken@libsdl.org>
Fri, 07 Oct 2016 16:44:42 -0700
changeset 10481 42a679ff48e0
parent 10393 6cf7d55773b3
child 10638 d11daa346140
permissions -rw-r--r--
Fixed bug 2885 - SDL_stdinc.h doesn't need to include iconv.h

Ryan C. Gordon

We still include iconv.h in SDL_stdinc.h, probably because this header might have referenced the native iconv functions and types directly. Since these are hidden behind a stable ABI now and never just a #define for the system iconv, we shouldn't need this header included from a public SDL header anymore, slowing down external apps compiles and pulling tons of stuff into the namespace.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2016 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 # if defined(__WINRT__)
    75 /* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
    76    WinRT.  See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
    77    for more information.
    78 */
    79 #  define _USE_MATH_DEFINES
    80 # endif
    81 # include <math.h>
    82 #endif
    83 #ifdef HAVE_FLOAT_H
    84 # include <float.h>
    85 #endif
    86 
    87 /**
    88  *  The number of elements in an array.
    89  */
    90 #define SDL_arraysize(array)    (sizeof(array)/sizeof(array[0]))
    91 #define SDL_TABLESIZE(table)    SDL_arraysize(table)
    92 
    93 /**
    94  *  Macro useful for building other macros with strings in them
    95  *
    96  *  e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
    97  */
    98 #define SDL_STRINGIFY_ARG(arg)  #arg
    99 
   100 /**
   101  *  \name Cast operators
   102  *
   103  *  Use proper C++ casts when compiled as C++ to be compatible with the option
   104  *  -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
   105  */
   106 /* @{ */
   107 #ifdef __cplusplus
   108 #define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
   109 #define SDL_static_cast(type, expression) static_cast<type>(expression)
   110 #define SDL_const_cast(type, expression) const_cast<type>(expression)
   111 #else
   112 #define SDL_reinterpret_cast(type, expression) ((type)(expression))
   113 #define SDL_static_cast(type, expression) ((type)(expression))
   114 #define SDL_const_cast(type, expression) ((type)(expression))
   115 #endif
   116 /* @} *//* Cast operators */
   117 
   118 /* Define a four character code as a Uint32 */
   119 #define SDL_FOURCC(A, B, C, D) \
   120     ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
   121      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
   122      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
   123      (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
   124 
   125 /**
   126  *  \name Basic data types
   127  */
   128 /* @{ */
   129 
   130 typedef enum
   131 {
   132     SDL_FALSE = 0,
   133     SDL_TRUE = 1
   134 } SDL_bool;
   135 
   136 /**
   137  * \brief A signed 8-bit integer type.
   138  */
   139 typedef int8_t Sint8;
   140 /**
   141  * \brief An unsigned 8-bit integer type.
   142  */
   143 typedef uint8_t Uint8;
   144 /**
   145  * \brief A signed 16-bit integer type.
   146  */
   147 typedef int16_t Sint16;
   148 /**
   149  * \brief An unsigned 16-bit integer type.
   150  */
   151 typedef uint16_t Uint16;
   152 /**
   153  * \brief A signed 32-bit integer type.
   154  */
   155 typedef int32_t Sint32;
   156 /**
   157  * \brief An unsigned 32-bit integer type.
   158  */
   159 typedef uint32_t Uint32;
   160 
   161 /**
   162  * \brief A signed 64-bit integer type.
   163  */
   164 typedef int64_t Sint64;
   165 /**
   166  * \brief An unsigned 64-bit integer type.
   167  */
   168 typedef uint64_t Uint64;
   169 
   170 /* @} *//* Basic data types */
   171 
   172 /* Make sure we have macros for printing 64 bit values.
   173  * <stdint.h> should define these but this is not true all platforms.
   174  * (for example win32) */
   175 #ifndef SDL_PRIs64
   176 #ifdef PRIs64
   177 #define SDL_PRIs64 PRIs64
   178 #elif defined(__WIN32__)
   179 #define SDL_PRIs64 "I64d"
   180 #elif defined(__LINUX__) && defined(__LP64__)
   181 #define SDL_PRIs64 "ld"
   182 #else
   183 #define SDL_PRIs64 "lld"
   184 #endif
   185 #endif
   186 #ifndef SDL_PRIu64
   187 #ifdef PRIu64
   188 #define SDL_PRIu64 PRIu64
   189 #elif defined(__WIN32__)
   190 #define SDL_PRIu64 "I64u"
   191 #elif defined(__LINUX__) && defined(__LP64__)
   192 #define SDL_PRIu64 "lu"
   193 #else
   194 #define SDL_PRIu64 "llu"
   195 #endif
   196 #endif
   197 #ifndef SDL_PRIx64
   198 #ifdef PRIx64
   199 #define SDL_PRIx64 PRIx64
   200 #elif defined(__WIN32__)
   201 #define SDL_PRIx64 "I64x"
   202 #elif defined(__LINUX__) && defined(__LP64__)
   203 #define SDL_PRIx64 "lx"
   204 #else
   205 #define SDL_PRIx64 "llx"
   206 #endif
   207 #endif
   208 #ifndef SDL_PRIX64
   209 #ifdef PRIX64
   210 #define SDL_PRIX64 PRIX64
   211 #elif defined(__WIN32__)
   212 #define SDL_PRIX64 "I64X"
   213 #elif defined(__LINUX__) && defined(__LP64__)
   214 #define SDL_PRIX64 "lX"
   215 #else
   216 #define SDL_PRIX64 "llX"
   217 #endif
   218 #endif
   219 
   220 /* Annotations to help code analysis tools */
   221 #ifdef SDL_DISABLE_ANALYZE_MACROS
   222 #define SDL_IN_BYTECAP(x)
   223 #define SDL_INOUT_Z_CAP(x)
   224 #define SDL_OUT_Z_CAP(x)
   225 #define SDL_OUT_CAP(x)
   226 #define SDL_OUT_BYTECAP(x)
   227 #define SDL_OUT_Z_BYTECAP(x)
   228 #define SDL_PRINTF_FORMAT_STRING
   229 #define SDL_SCANF_FORMAT_STRING
   230 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   231 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   232 #else
   233 #if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
   234 #include <sal.h>
   235 
   236 #define SDL_IN_BYTECAP(x) _In_bytecount_(x)
   237 #define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
   238 #define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
   239 #define SDL_OUT_CAP(x) _Out_cap_(x)
   240 #define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
   241 #define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
   242 
   243 #define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
   244 #define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
   245 #else
   246 #define SDL_IN_BYTECAP(x)
   247 #define SDL_INOUT_Z_CAP(x)
   248 #define SDL_OUT_Z_CAP(x)
   249 #define SDL_OUT_CAP(x)
   250 #define SDL_OUT_BYTECAP(x)
   251 #define SDL_OUT_Z_BYTECAP(x)
   252 #define SDL_PRINTF_FORMAT_STRING
   253 #define SDL_SCANF_FORMAT_STRING
   254 #endif
   255 #if defined(__GNUC__)
   256 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
   257 #define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
   258 #else
   259 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   260 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   261 #endif
   262 #endif /* SDL_DISABLE_ANALYZE_MACROS */
   263 
   264 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   265        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   266 /** \cond */
   267 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   268 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   269 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   270 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   271 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   272 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   273 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   274 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   275 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   276 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   277 /** \endcond */
   278 
   279 /* Check to make sure enums are the size of ints, for structure packing.
   280    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   281    enums having the size of an int must be enabled.
   282    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   283 */
   284 
   285 /** \cond */
   286 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   287 #if !defined(__ANDROID__)
   288    /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   289 typedef enum
   290 {
   291     DUMMY_ENUM_VALUE
   292 } SDL_DUMMY_ENUM;
   293 
   294 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   295 #endif
   296 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   297 /** \endcond */
   298 
   299 #include "begin_code.h"
   300 /* Set up for C function definitions, even when using C++ */
   301 #ifdef __cplusplus
   302 extern "C" {
   303 #endif
   304 
   305 #if defined(HAVE_ALLOCA) && !defined(alloca)
   306 # if defined(HAVE_ALLOCA_H)
   307 #  include <alloca.h>
   308 # elif defined(__GNUC__)
   309 #  define alloca __builtin_alloca
   310 # elif defined(_MSC_VER)
   311 #  include <malloc.h>
   312 #  define alloca _alloca
   313 # elif defined(__WATCOMC__)
   314 #  include <malloc.h>
   315 # elif defined(__BORLANDC__)
   316 #  include <malloc.h>
   317 # elif defined(__DMC__)
   318 #  include <stdlib.h>
   319 # elif defined(__AIX__)
   320 #pragma alloca
   321 # elif defined(__MRC__)
   322 void *alloca(unsigned);
   323 # else
   324 char *alloca();
   325 # endif
   326 #endif
   327 #ifdef HAVE_ALLOCA
   328 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   329 #define SDL_stack_free(data)
   330 #else
   331 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   332 #define SDL_stack_free(data)            SDL_free(data)
   333 #endif
   334 
   335 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   336 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   337 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   338 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   339 
   340 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   341 extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
   342 
   343 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
   344 
   345 extern DECLSPEC int SDLCALL SDL_abs(int x);
   346 
   347 /* !!! FIXME: these have side effects. You probably shouldn't use them. */
   348 /* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
   349 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
   350 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
   351 
   352 extern DECLSPEC int SDLCALL SDL_isdigit(int x);
   353 extern DECLSPEC int SDLCALL SDL_isspace(int x);
   354 extern DECLSPEC int SDLCALL SDL_toupper(int x);
   355 extern DECLSPEC int SDLCALL SDL_tolower(int x);
   356 
   357 extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
   358 
   359 #define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
   360 #define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
   361 
   362 /* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
   363 SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
   364 {
   365 #if defined(__GNUC__) && defined(i386)
   366     int u0, u1, u2;
   367     __asm__ __volatile__ (
   368         "cld \n\t"
   369         "rep ; stosl \n\t"
   370         : "=&D" (u0), "=&a" (u1), "=&c" (u2)
   371         : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
   372         : "memory"
   373     );
   374 #else
   375     size_t _n = (dwords + 3) / 4;
   376     Uint32 *_p = SDL_static_cast(Uint32 *, dst);
   377     Uint32 _val = (val);
   378     if (dwords == 0)
   379         return;
   380     switch (dwords % 4)
   381     {
   382         case 0: do {    *_p++ = _val;
   383         case 3:         *_p++ = _val;
   384         case 2:         *_p++ = _val;
   385         case 1:         *_p++ = _val;
   386         } while ( --_n );
   387     }
   388 #endif
   389 }
   390 
   391 
   392 extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   393 
   394 extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   395 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   396 
   397 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
   398 extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   399 extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   400 
   401 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
   402 extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   403 extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
   404 extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   405 extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
   406 extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
   407 extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
   408 extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
   409 extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
   410 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
   411 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
   412 
   413 extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
   414 extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
   415 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
   416 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
   417 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
   418 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
   419 
   420 extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
   421 extern DECLSPEC double SDLCALL SDL_atof(const char *str);
   422 extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
   423 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
   424 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
   425 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
   426 extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
   427 
   428 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   429 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   430 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   431 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
   432 
   433 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
   434 extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
   435 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);
   436 extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
   437 
   438 #ifndef HAVE_M_PI
   439 #ifndef M_PI
   440 #define M_PI    3.14159265358979323846264338327950288   /* pi */
   441 #endif
   442 #endif
   443 
   444 extern DECLSPEC double SDLCALL SDL_acos(double x);
   445 extern DECLSPEC double SDLCALL SDL_asin(double x);
   446 extern DECLSPEC double SDLCALL SDL_atan(double x);
   447 extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
   448 extern DECLSPEC double SDLCALL SDL_ceil(double x);
   449 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   450 extern DECLSPEC double SDLCALL SDL_cos(double x);
   451 extern DECLSPEC float SDLCALL SDL_cosf(float x);
   452 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   453 extern DECLSPEC double SDLCALL SDL_floor(double x);
   454 extern DECLSPEC double SDLCALL SDL_log(double x);
   455 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   456 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   457 extern DECLSPEC double SDLCALL SDL_sin(double x);
   458 extern DECLSPEC float SDLCALL SDL_sinf(float x);
   459 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   460 extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
   461 extern DECLSPEC double SDLCALL SDL_tan(double x);
   462 extern DECLSPEC float SDLCALL SDL_tanf(float x);
   463 
   464 /* The SDL implementation of iconv() returns these error codes */
   465 #define SDL_ICONV_ERROR     (size_t)-1
   466 #define SDL_ICONV_E2BIG     (size_t)-2
   467 #define SDL_ICONV_EILSEQ    (size_t)-3
   468 #define SDL_ICONV_EINVAL    (size_t)-4
   469 
   470 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
   471 typedef struct _SDL_iconv_t *SDL_iconv_t;
   472 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   473                                                    const char *fromcode);
   474 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   475 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   476                                          size_t * inbytesleft, char **outbuf,
   477                                          size_t * outbytesleft);
   478 /**
   479  *  This function converts a string between encodings in one pass, returning a
   480  *  string that must be freed with SDL_free() or NULL on error.
   481  */
   482 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   483                                                const char *fromcode,
   484                                                const char *inbuf,
   485                                                size_t inbytesleft);
   486 #define SDL_iconv_utf8_locale(S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   487 #define SDL_iconv_utf8_ucs2(S)      (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   488 #define SDL_iconv_utf8_ucs4(S)      (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   489 
   490 /* force builds using Clang's static analysis tools to use literal C runtime
   491    here, since there are possibly tests that are ineffective otherwise. */
   492 #if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
   493 #define SDL_malloc malloc
   494 #define SDL_calloc calloc
   495 #define SDL_realloc realloc
   496 #define SDL_free free
   497 #define SDL_memset memset
   498 #define SDL_memcpy memcpy
   499 #define SDL_memmove memmove
   500 #define SDL_memcmp memcmp
   501 #define SDL_strlen strlen
   502 #define SDL_strlcpy strlcpy
   503 #define SDL_strlcat strlcat
   504 #define SDL_strdup strdup
   505 #define SDL_strchr strchr
   506 #define SDL_strrchr strrchr
   507 #define SDL_strstr strstr
   508 #define SDL_strcmp strcmp
   509 #define SDL_strncmp strncmp
   510 #define SDL_strcasecmp strcasecmp
   511 #define SDL_strncasecmp strncasecmp
   512 #define SDL_sscanf sscanf
   513 #define SDL_vsscanf vsscanf
   514 #define SDL_snprintf snprintf
   515 #define SDL_vsnprintf vsnprintf
   516 #endif
   517 
   518 SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
   519 {
   520     return SDL_memcpy(dst, src, dwords * 4);
   521 }
   522 
   523 /* Ends C function definitions when using C++ */
   524 #ifdef __cplusplus
   525 }
   526 #endif
   527 #include "close_code.h"
   528 
   529 #endif /* _SDL_stdinc_h */
   530 
   531 /* vi: set ts=4 sw=4 expandtab: */