include/SDL_stdinc.h
author Ryan C. Gordon <icculus@icculus.org>
Fri, 03 Mar 2017 16:38:17 -0500
changeset 10926 97c829825e0e
parent 10737 3406a0f8b041
child 11049 6e24dc7c67c6
permissions -rw-r--r--
Fix some more compiler warnings on armcc.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2017 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 #ifdef __CC_ARM
   131 /* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
   132 #define SDL_FALSE 0
   133 #define SDL_TRUE 1
   134 typedef int SDL_bool;
   135 #else
   136 typedef enum
   137 {
   138     SDL_FALSE = 0,
   139     SDL_TRUE = 1
   140 } SDL_bool;
   141 #endif
   142 
   143 /**
   144  * \brief A signed 8-bit integer type.
   145  */
   146 typedef int8_t Sint8;
   147 /**
   148  * \brief An unsigned 8-bit integer type.
   149  */
   150 typedef uint8_t Uint8;
   151 /**
   152  * \brief A signed 16-bit integer type.
   153  */
   154 typedef int16_t Sint16;
   155 /**
   156  * \brief An unsigned 16-bit integer type.
   157  */
   158 typedef uint16_t Uint16;
   159 /**
   160  * \brief A signed 32-bit integer type.
   161  */
   162 typedef int32_t Sint32;
   163 /**
   164  * \brief An unsigned 32-bit integer type.
   165  */
   166 typedef uint32_t Uint32;
   167 
   168 /**
   169  * \brief A signed 64-bit integer type.
   170  */
   171 typedef int64_t Sint64;
   172 /**
   173  * \brief An unsigned 64-bit integer type.
   174  */
   175 typedef uint64_t Uint64;
   176 
   177 /* @} *//* Basic data types */
   178 
   179 /* Make sure we have macros for printing 64 bit values.
   180  * <stdint.h> should define these but this is not true all platforms.
   181  * (for example win32) */
   182 #ifndef SDL_PRIs64
   183 #ifdef PRIs64
   184 #define SDL_PRIs64 PRIs64
   185 #elif defined(__WIN32__)
   186 #define SDL_PRIs64 "I64d"
   187 #elif defined(__LINUX__) && defined(__LP64__)
   188 #define SDL_PRIs64 "ld"
   189 #else
   190 #define SDL_PRIs64 "lld"
   191 #endif
   192 #endif
   193 #ifndef SDL_PRIu64
   194 #ifdef PRIu64
   195 #define SDL_PRIu64 PRIu64
   196 #elif defined(__WIN32__)
   197 #define SDL_PRIu64 "I64u"
   198 #elif defined(__LINUX__) && defined(__LP64__)
   199 #define SDL_PRIu64 "lu"
   200 #else
   201 #define SDL_PRIu64 "llu"
   202 #endif
   203 #endif
   204 #ifndef SDL_PRIx64
   205 #ifdef PRIx64
   206 #define SDL_PRIx64 PRIx64
   207 #elif defined(__WIN32__)
   208 #define SDL_PRIx64 "I64x"
   209 #elif defined(__LINUX__) && defined(__LP64__)
   210 #define SDL_PRIx64 "lx"
   211 #else
   212 #define SDL_PRIx64 "llx"
   213 #endif
   214 #endif
   215 #ifndef SDL_PRIX64
   216 #ifdef PRIX64
   217 #define SDL_PRIX64 PRIX64
   218 #elif defined(__WIN32__)
   219 #define SDL_PRIX64 "I64X"
   220 #elif defined(__LINUX__) && defined(__LP64__)
   221 #define SDL_PRIX64 "lX"
   222 #else
   223 #define SDL_PRIX64 "llX"
   224 #endif
   225 #endif
   226 
   227 /* Annotations to help code analysis tools */
   228 #ifdef SDL_DISABLE_ANALYZE_MACROS
   229 #define SDL_IN_BYTECAP(x)
   230 #define SDL_INOUT_Z_CAP(x)
   231 #define SDL_OUT_Z_CAP(x)
   232 #define SDL_OUT_CAP(x)
   233 #define SDL_OUT_BYTECAP(x)
   234 #define SDL_OUT_Z_BYTECAP(x)
   235 #define SDL_PRINTF_FORMAT_STRING
   236 #define SDL_SCANF_FORMAT_STRING
   237 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   238 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   239 #else
   240 #if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
   241 #include <sal.h>
   242 
   243 #define SDL_IN_BYTECAP(x) _In_bytecount_(x)
   244 #define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
   245 #define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
   246 #define SDL_OUT_CAP(x) _Out_cap_(x)
   247 #define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
   248 #define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
   249 
   250 #define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
   251 #define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
   252 #else
   253 #define SDL_IN_BYTECAP(x)
   254 #define SDL_INOUT_Z_CAP(x)
   255 #define SDL_OUT_Z_CAP(x)
   256 #define SDL_OUT_CAP(x)
   257 #define SDL_OUT_BYTECAP(x)
   258 #define SDL_OUT_Z_BYTECAP(x)
   259 #define SDL_PRINTF_FORMAT_STRING
   260 #define SDL_SCANF_FORMAT_STRING
   261 #endif
   262 #if defined(__GNUC__)
   263 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
   264 #define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
   265 #else
   266 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
   267 #define SDL_SCANF_VARARG_FUNC( fmtargnumber )
   268 #endif
   269 #endif /* SDL_DISABLE_ANALYZE_MACROS */
   270 
   271 #define SDL_COMPILE_TIME_ASSERT(name, x)               \
   272        typedef int SDL_dummy_ ## name[(x) * 2 - 1]
   273 /** \cond */
   274 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   275 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
   276 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
   277 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
   278 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
   279 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
   280 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
   281 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
   282 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
   283 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   284 /** \endcond */
   285 
   286 /* Check to make sure enums are the size of ints, for structure packing.
   287    For both Watcom C/C++ and Borland C/C++ the compiler option that makes
   288    enums having the size of an int must be enabled.
   289    This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
   290 */
   291 
   292 /** \cond */
   293 #ifndef DOXYGEN_SHOULD_IGNORE_THIS
   294 #if !defined(__ANDROID__)
   295    /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
   296 typedef enum
   297 {
   298     DUMMY_ENUM_VALUE
   299 } SDL_DUMMY_ENUM;
   300 
   301 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
   302 #endif
   303 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */
   304 /** \endcond */
   305 
   306 #include "begin_code.h"
   307 /* Set up for C function definitions, even when using C++ */
   308 #ifdef __cplusplus
   309 extern "C" {
   310 #endif
   311 
   312 #if defined(HAVE_ALLOCA) && !defined(alloca)
   313 # if defined(HAVE_ALLOCA_H)
   314 #  include <alloca.h>
   315 # elif defined(__GNUC__)
   316 #  define alloca __builtin_alloca
   317 # elif defined(_MSC_VER)
   318 #  include <malloc.h>
   319 #  define alloca _alloca
   320 # elif defined(__WATCOMC__)
   321 #  include <malloc.h>
   322 # elif defined(__BORLANDC__)
   323 #  include <malloc.h>
   324 # elif defined(__DMC__)
   325 #  include <stdlib.h>
   326 # elif defined(__AIX__)
   327 #pragma alloca
   328 # elif defined(__MRC__)
   329 void *alloca(unsigned);
   330 # else
   331 char *alloca();
   332 # endif
   333 #endif
   334 #ifdef HAVE_ALLOCA
   335 #define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
   336 #define SDL_stack_free(data)
   337 #else
   338 #define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
   339 #define SDL_stack_free(data)            SDL_free(data)
   340 #endif
   341 
   342 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
   343 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
   344 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
   345 extern DECLSPEC void SDLCALL SDL_free(void *mem);
   346 
   347 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
   348 extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
   349 
   350 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
   351 
   352 extern DECLSPEC int SDLCALL SDL_abs(int x);
   353 
   354 /* !!! FIXME: these have side effects. You probably shouldn't use them. */
   355 /* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
   356 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
   357 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
   358 
   359 extern DECLSPEC int SDLCALL SDL_isdigit(int x);
   360 extern DECLSPEC int SDLCALL SDL_isspace(int x);
   361 extern DECLSPEC int SDLCALL SDL_toupper(int x);
   362 extern DECLSPEC int SDLCALL SDL_tolower(int x);
   363 
   364 extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
   365 
   366 #define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
   367 #define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
   368 
   369 /* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
   370 SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
   371 {
   372 #if defined(__GNUC__) && defined(i386)
   373     int u0, u1, u2;
   374     __asm__ __volatile__ (
   375         "cld \n\t"
   376         "rep ; stosl \n\t"
   377         : "=&D" (u0), "=&a" (u1), "=&c" (u2)
   378         : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
   379         : "memory"
   380     );
   381 #else
   382     size_t _n = (dwords + 3) / 4;
   383     Uint32 *_p = SDL_static_cast(Uint32 *, dst);
   384     Uint32 _val = (val);
   385     if (dwords == 0)
   386         return;
   387     switch (dwords % 4)
   388     {
   389         case 0: do {    *_p++ = _val;
   390         case 3:         *_p++ = _val;
   391         case 2:         *_p++ = _val;
   392         case 1:         *_p++ = _val;
   393         } while ( --_n );
   394     }
   395 #endif
   396 }
   397 
   398 
   399 extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   400 
   401 extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
   402 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
   403 
   404 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
   405 extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   406 extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
   407 
   408 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
   409 extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   410 extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
   411 extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
   412 extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
   413 extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
   414 extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
   415 extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
   416 extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
   417 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
   418 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
   419 
   420 extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
   421 extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
   422 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
   423 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
   424 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
   425 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
   426 
   427 extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
   428 extern DECLSPEC double SDLCALL SDL_atof(const char *str);
   429 extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
   430 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
   431 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
   432 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
   433 extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
   434 
   435 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
   436 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
   437 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
   438 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
   439 
   440 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
   441 extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
   442 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);
   443 extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
   444 
   445 #ifndef HAVE_M_PI
   446 #ifndef M_PI
   447 #define M_PI    3.14159265358979323846264338327950288   /* pi */
   448 #endif
   449 #endif
   450 
   451 extern DECLSPEC double SDLCALL SDL_acos(double x);
   452 extern DECLSPEC double SDLCALL SDL_asin(double x);
   453 extern DECLSPEC double SDLCALL SDL_atan(double x);
   454 extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
   455 extern DECLSPEC double SDLCALL SDL_ceil(double x);
   456 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
   457 extern DECLSPEC double SDLCALL SDL_cos(double x);
   458 extern DECLSPEC float SDLCALL SDL_cosf(float x);
   459 extern DECLSPEC double SDLCALL SDL_fabs(double x);
   460 extern DECLSPEC double SDLCALL SDL_floor(double x);
   461 extern DECLSPEC double SDLCALL SDL_log(double x);
   462 extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
   463 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
   464 extern DECLSPEC double SDLCALL SDL_sin(double x);
   465 extern DECLSPEC float SDLCALL SDL_sinf(float x);
   466 extern DECLSPEC double SDLCALL SDL_sqrt(double x);
   467 extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
   468 extern DECLSPEC double SDLCALL SDL_tan(double x);
   469 extern DECLSPEC float SDLCALL SDL_tanf(float x);
   470 
   471 /* The SDL implementation of iconv() returns these error codes */
   472 #define SDL_ICONV_ERROR     (size_t)-1
   473 #define SDL_ICONV_E2BIG     (size_t)-2
   474 #define SDL_ICONV_EILSEQ    (size_t)-3
   475 #define SDL_ICONV_EINVAL    (size_t)-4
   476 
   477 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
   478 typedef struct _SDL_iconv_t *SDL_iconv_t;
   479 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
   480                                                    const char *fromcode);
   481 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
   482 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
   483                                          size_t * inbytesleft, char **outbuf,
   484                                          size_t * outbytesleft);
   485 /**
   486  *  This function converts a string between encodings in one pass, returning a
   487  *  string that must be freed with SDL_free() or NULL on error.
   488  */
   489 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
   490                                                const char *fromcode,
   491                                                const char *inbuf,
   492                                                size_t inbytesleft);
   493 #define SDL_iconv_utf8_locale(S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
   494 #define SDL_iconv_utf8_ucs2(S)      (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   495 #define SDL_iconv_utf8_ucs4(S)      (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
   496 
   497 /* force builds using Clang's static analysis tools to use literal C runtime
   498    here, since there are possibly tests that are ineffective otherwise. */
   499 #if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
   500 #define SDL_malloc malloc
   501 #define SDL_calloc calloc
   502 #define SDL_realloc realloc
   503 #define SDL_free free
   504 #define SDL_memset memset
   505 #define SDL_memcpy memcpy
   506 #define SDL_memmove memmove
   507 #define SDL_memcmp memcmp
   508 #define SDL_strlen strlen
   509 #define SDL_strlcpy strlcpy
   510 #define SDL_strlcat strlcat
   511 #define SDL_strdup strdup
   512 #define SDL_strchr strchr
   513 #define SDL_strrchr strrchr
   514 #define SDL_strstr strstr
   515 #define SDL_strcmp strcmp
   516 #define SDL_strncmp strncmp
   517 #define SDL_strcasecmp strcasecmp
   518 #define SDL_strncasecmp strncasecmp
   519 #define SDL_sscanf sscanf
   520 #define SDL_vsscanf vsscanf
   521 #define SDL_snprintf snprintf
   522 #define SDL_vsnprintf vsnprintf
   523 #endif
   524 
   525 SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
   526 {
   527     return SDL_memcpy(dst, src, dwords * 4);
   528 }
   529 
   530 /* Ends C function definitions when using C++ */
   531 #ifdef __cplusplus
   532 }
   533 #endif
   534 #include "close_code.h"
   535 
   536 #endif /* SDL_stdinc_h_ */
   537 
   538 /* vi: set ts=4 sw=4 expandtab: */