SDL_stdinc.h (23685B)
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 #ifndef _DARWIN_C_SOURCE 35 #define _DARWIN_C_SOURCE 1 /* for memset_pattern4() */ 36 #endif 37 #endif 38 39 #ifdef HAVE_SYS_TYPES_H 40 #include <sys/types.h> 41 #endif 42 #ifdef HAVE_STDIO_H 43 #include <stdio.h> 44 #endif 45 #if defined(STDC_HEADERS) 46 # include <stdlib.h> 47 # include <stddef.h> 48 # include <stdarg.h> 49 #else 50 # if defined(HAVE_STDLIB_H) 51 # include <stdlib.h> 52 # elif defined(HAVE_MALLOC_H) 53 # include <malloc.h> 54 # endif 55 # if defined(HAVE_STDDEF_H) 56 # include <stddef.h> 57 # endif 58 # if defined(HAVE_STDARG_H) 59 # include <stdarg.h> 60 # endif 61 #endif 62 #ifdef HAVE_STRING_H 63 # if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H) 64 # include <memory.h> 65 # endif 66 # include <string.h> 67 #endif 68 #ifdef HAVE_STRINGS_H 69 # include <strings.h> 70 #endif 71 #ifdef HAVE_WCHAR_H 72 # include <wchar.h> 73 #endif 74 #if defined(HAVE_INTTYPES_H) 75 # include <inttypes.h> 76 #elif defined(HAVE_STDINT_H) 77 # include <stdint.h> 78 #endif 79 #ifdef HAVE_CTYPE_H 80 # include <ctype.h> 81 #endif 82 #ifdef HAVE_MATH_H 83 # if defined(__WINRT__) 84 /* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on 85 WinRT. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx 86 for more information. 87 */ 88 # define _USE_MATH_DEFINES 89 # endif 90 # include <math.h> 91 #endif 92 #ifdef HAVE_FLOAT_H 93 # include <float.h> 94 #endif 95 #if defined(HAVE_ALLOCA) && !defined(alloca) 96 # if defined(HAVE_ALLOCA_H) 97 # include <alloca.h> 98 # elif defined(__GNUC__) 99 # define alloca __builtin_alloca 100 # elif defined(_MSC_VER) 101 # include <malloc.h> 102 # define alloca _alloca 103 # elif defined(__WATCOMC__) 104 # include <malloc.h> 105 # elif defined(__BORLANDC__) 106 # include <malloc.h> 107 # elif defined(__DMC__) 108 # include <stdlib.h> 109 # elif defined(__AIX__) 110 #pragma alloca 111 # elif defined(__MRC__) 112 void *alloca(unsigned); 113 # else 114 char *alloca(); 115 # endif 116 #endif 117 118 /** 119 * The number of elements in an array. 120 */ 121 #define SDL_arraysize(array) (sizeof(array)/sizeof(array[0])) 122 #define SDL_TABLESIZE(table) SDL_arraysize(table) 123 124 /** 125 * Macro useful for building other macros with strings in them 126 * 127 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n") 128 */ 129 #define SDL_STRINGIFY_ARG(arg) #arg 130 131 /** 132 * \name Cast operators 133 * 134 * Use proper C++ casts when compiled as C++ to be compatible with the option 135 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above). 136 */ 137 /* @{ */ 138 #ifdef __cplusplus 139 #define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression) 140 #define SDL_static_cast(type, expression) static_cast<type>(expression) 141 #define SDL_const_cast(type, expression) const_cast<type>(expression) 142 #else 143 #define SDL_reinterpret_cast(type, expression) ((type)(expression)) 144 #define SDL_static_cast(type, expression) ((type)(expression)) 145 #define SDL_const_cast(type, expression) ((type)(expression)) 146 #endif 147 /* @} *//* Cast operators */ 148 149 /* Define a four character code as a Uint32 */ 150 #define SDL_FOURCC(A, B, C, D) \ 151 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \ 152 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \ 153 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \ 154 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24)) 155 156 /** 157 * \name Basic data types 158 */ 159 /* @{ */ 160 161 #ifdef __CC_ARM 162 /* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */ 163 #define SDL_FALSE 0 164 #define SDL_TRUE 1 165 typedef int SDL_bool; 166 #else 167 typedef enum 168 { 169 SDL_FALSE = 0, 170 SDL_TRUE = 1 171 } SDL_bool; 172 #endif 173 174 /** 175 * \brief A signed 8-bit integer type. 176 */ 177 #define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */ 178 #define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */ 179 typedef int8_t Sint8; 180 /** 181 * \brief An unsigned 8-bit integer type. 182 */ 183 #define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */ 184 #define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */ 185 typedef uint8_t Uint8; 186 /** 187 * \brief A signed 16-bit integer type. 188 */ 189 #define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */ 190 #define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */ 191 typedef int16_t Sint16; 192 /** 193 * \brief An unsigned 16-bit integer type. 194 */ 195 #define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */ 196 #define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */ 197 typedef uint16_t Uint16; 198 /** 199 * \brief A signed 32-bit integer type. 200 */ 201 #define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */ 202 #define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */ 203 typedef int32_t Sint32; 204 /** 205 * \brief An unsigned 32-bit integer type. 206 */ 207 #define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */ 208 #define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */ 209 typedef uint32_t Uint32; 210 211 /** 212 * \brief A signed 64-bit integer type. 213 */ 214 #define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */ 215 #define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */ 216 typedef int64_t Sint64; 217 /** 218 * \brief An unsigned 64-bit integer type. 219 */ 220 #define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */ 221 #define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */ 222 typedef uint64_t Uint64; 223 224 /* @} *//* Basic data types */ 225 226 /* Make sure we have macros for printing 64 bit values. 227 * <stdint.h> should define these but this is not true all platforms. 228 * (for example win32) */ 229 #ifndef SDL_PRIs64 230 #ifdef PRIs64 231 #define SDL_PRIs64 PRIs64 232 #elif defined(__WIN32__) 233 #define SDL_PRIs64 "I64d" 234 #elif defined(__LINUX__) && defined(__LP64__) 235 #define SDL_PRIs64 "ld" 236 #else 237 #define SDL_PRIs64 "lld" 238 #endif 239 #endif 240 #ifndef SDL_PRIu64 241 #ifdef PRIu64 242 #define SDL_PRIu64 PRIu64 243 #elif defined(__WIN32__) 244 #define SDL_PRIu64 "I64u" 245 #elif defined(__LINUX__) && defined(__LP64__) 246 #define SDL_PRIu64 "lu" 247 #else 248 #define SDL_PRIu64 "llu" 249 #endif 250 #endif 251 #ifndef SDL_PRIx64 252 #ifdef PRIx64 253 #define SDL_PRIx64 PRIx64 254 #elif defined(__WIN32__) 255 #define SDL_PRIx64 "I64x" 256 #elif defined(__LINUX__) && defined(__LP64__) 257 #define SDL_PRIx64 "lx" 258 #else 259 #define SDL_PRIx64 "llx" 260 #endif 261 #endif 262 #ifndef SDL_PRIX64 263 #ifdef PRIX64 264 #define SDL_PRIX64 PRIX64 265 #elif defined(__WIN32__) 266 #define SDL_PRIX64 "I64X" 267 #elif defined(__LINUX__) && defined(__LP64__) 268 #define SDL_PRIX64 "lX" 269 #else 270 #define SDL_PRIX64 "llX" 271 #endif 272 #endif 273 274 /* Annotations to help code analysis tools */ 275 #ifdef SDL_DISABLE_ANALYZE_MACROS 276 #define SDL_IN_BYTECAP(x) 277 #define SDL_INOUT_Z_CAP(x) 278 #define SDL_OUT_Z_CAP(x) 279 #define SDL_OUT_CAP(x) 280 #define SDL_OUT_BYTECAP(x) 281 #define SDL_OUT_Z_BYTECAP(x) 282 #define SDL_PRINTF_FORMAT_STRING 283 #define SDL_SCANF_FORMAT_STRING 284 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) 285 #define SDL_SCANF_VARARG_FUNC( fmtargnumber ) 286 #else 287 #if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */ 288 #include <sal.h> 289 290 #define SDL_IN_BYTECAP(x) _In_bytecount_(x) 291 #define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x) 292 #define SDL_OUT_Z_CAP(x) _Out_z_cap_(x) 293 #define SDL_OUT_CAP(x) _Out_cap_(x) 294 #define SDL_OUT_BYTECAP(x) _Out_bytecap_(x) 295 #define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x) 296 297 #define SDL_PRINTF_FORMAT_STRING _Printf_format_string_ 298 #define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_ 299 #else 300 #define SDL_IN_BYTECAP(x) 301 #define SDL_INOUT_Z_CAP(x) 302 #define SDL_OUT_Z_CAP(x) 303 #define SDL_OUT_CAP(x) 304 #define SDL_OUT_BYTECAP(x) 305 #define SDL_OUT_Z_BYTECAP(x) 306 #define SDL_PRINTF_FORMAT_STRING 307 #define SDL_SCANF_FORMAT_STRING 308 #endif 309 #if defined(__GNUC__) 310 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 ))) 311 #define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 ))) 312 #else 313 #define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) 314 #define SDL_SCANF_VARARG_FUNC( fmtargnumber ) 315 #endif 316 #endif /* SDL_DISABLE_ANALYZE_MACROS */ 317 318 #define SDL_COMPILE_TIME_ASSERT(name, x) \ 319 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1] 320 /** \cond */ 321 #ifndef DOXYGEN_SHOULD_IGNORE_THIS 322 SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1); 323 SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1); 324 SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2); 325 SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2); 326 SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4); 327 SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4); 328 SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8); 329 SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8); 330 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */ 331 /** \endcond */ 332 333 /* Check to make sure enums are the size of ints, for structure packing. 334 For both Watcom C/C++ and Borland C/C++ the compiler option that makes 335 enums having the size of an int must be enabled. 336 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11). 337 */ 338 339 /** \cond */ 340 #ifndef DOXYGEN_SHOULD_IGNORE_THIS 341 #if !defined(__ANDROID__) 342 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */ 343 typedef enum 344 { 345 DUMMY_ENUM_VALUE 346 } SDL_DUMMY_ENUM; 347 348 SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int)); 349 #endif 350 #endif /* DOXYGEN_SHOULD_IGNORE_THIS */ 351 /** \endcond */ 352 353 #include "begin_code.h" 354 /* Set up for C function definitions, even when using C++ */ 355 #ifdef __cplusplus 356 extern "C" { 357 #endif 358 359 #ifdef HAVE_ALLOCA 360 #define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count)) 361 #define SDL_stack_free(data) 362 #else 363 #define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count)) 364 #define SDL_stack_free(data) SDL_free(data) 365 #endif 366 367 extern DECLSPEC void *SDLCALL SDL_malloc(size_t size); 368 extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size); 369 extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size); 370 extern DECLSPEC void SDLCALL SDL_free(void *mem); 371 372 typedef void *(SDLCALL *SDL_malloc_func)(size_t size); 373 typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size); 374 typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size); 375 typedef void (SDLCALL *SDL_free_func)(void *mem); 376 377 /** 378 * \brief Get the current set of SDL memory functions 379 */ 380 extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func, 381 SDL_calloc_func *calloc_func, 382 SDL_realloc_func *realloc_func, 383 SDL_free_func *free_func); 384 385 /** 386 * \brief Replace SDL's memory allocation functions with a custom set 387 * 388 * \note If you are replacing SDL's memory functions, you should call 389 * SDL_GetNumAllocations() and be very careful if it returns non-zero. 390 * That means that your free function will be called with memory 391 * allocated by the previous memory allocation functions. 392 */ 393 extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func, 394 SDL_calloc_func calloc_func, 395 SDL_realloc_func realloc_func, 396 SDL_free_func free_func); 397 398 /** 399 * \brief Get the number of outstanding (unfreed) allocations 400 */ 401 extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void); 402 403 extern DECLSPEC char *SDLCALL SDL_getenv(const char *name); 404 extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite); 405 406 extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *)); 407 408 extern DECLSPEC int SDLCALL SDL_abs(int x); 409 410 /* !!! FIXME: these have side effects. You probably shouldn't use them. */ 411 /* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */ 412 #define SDL_min(x, y) (((x) < (y)) ? (x) : (y)) 413 #define SDL_max(x, y) (((x) > (y)) ? (x) : (y)) 414 415 extern DECLSPEC int SDLCALL SDL_isdigit(int x); 416 extern DECLSPEC int SDLCALL SDL_isspace(int x); 417 extern DECLSPEC int SDLCALL SDL_isupper(int x); 418 extern DECLSPEC int SDLCALL SDL_islower(int x); 419 extern DECLSPEC int SDLCALL SDL_toupper(int x); 420 extern DECLSPEC int SDLCALL SDL_tolower(int x); 421 422 extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len); 423 424 extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len); 425 426 #define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x))) 427 #define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x))) 428 #define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x))) 429 430 /* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */ 431 SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords) 432 { 433 #ifdef __APPLE__ 434 memset_pattern4(dst, &val, dwords * 4); 435 #elif defined(__GNUC__) && defined(i386) 436 int u0, u1, u2; 437 __asm__ __volatile__ ( 438 "cld \n\t" 439 "rep ; stosl \n\t" 440 : "=&D" (u0), "=&a" (u1), "=&c" (u2) 441 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords)) 442 : "memory" 443 ); 444 #else 445 size_t _n = (dwords + 3) / 4; 446 Uint32 *_p = SDL_static_cast(Uint32 *, dst); 447 Uint32 _val = (val); 448 if (dwords == 0) 449 return; 450 switch (dwords % 4) 451 { 452 case 0: do { *_p++ = _val; /* fallthrough */ 453 case 3: *_p++ = _val; /* fallthrough */ 454 case 2: *_p++ = _val; /* fallthrough */ 455 case 1: *_p++ = _val; /* fallthrough */ 456 } while ( --_n ); 457 } 458 #endif 459 } 460 461 extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len); 462 463 extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len); 464 extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len); 465 466 extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr); 467 extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen); 468 extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen); 469 extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr); 470 extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle); 471 472 extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2); 473 extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen); 474 extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2); 475 extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len); 476 477 extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str); 478 extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen); 479 extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes); 480 extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen); 481 extern DECLSPEC char *SDLCALL SDL_strdup(const char *str); 482 extern DECLSPEC char *SDLCALL SDL_strrev(char *str); 483 extern DECLSPEC char *SDLCALL SDL_strupr(char *str); 484 extern DECLSPEC char *SDLCALL SDL_strlwr(char *str); 485 extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c); 486 extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c); 487 extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle); 488 extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr); 489 extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str); 490 491 extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix); 492 extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix); 493 extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix); 494 extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix); 495 extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix); 496 extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix); 497 498 extern DECLSPEC int SDLCALL SDL_atoi(const char *str); 499 extern DECLSPEC double SDLCALL SDL_atof(const char *str); 500 extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base); 501 extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base); 502 extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base); 503 extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base); 504 extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp); 505 506 extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2); 507 extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen); 508 extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2); 509 extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len); 510 511 extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2); 512 extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap); 513 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); 514 extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap); 515 516 #ifndef HAVE_M_PI 517 #ifndef M_PI 518 #define M_PI 3.14159265358979323846264338327950288 /**< pi */ 519 #endif 520 #endif 521 522 extern DECLSPEC double SDLCALL SDL_acos(double x); 523 extern DECLSPEC float SDLCALL SDL_acosf(float x); 524 extern DECLSPEC double SDLCALL SDL_asin(double x); 525 extern DECLSPEC float SDLCALL SDL_asinf(float x); 526 extern DECLSPEC double SDLCALL SDL_atan(double x); 527 extern DECLSPEC float SDLCALL SDL_atanf(float x); 528 extern DECLSPEC double SDLCALL SDL_atan2(double x, double y); 529 extern DECLSPEC float SDLCALL SDL_atan2f(float x, float y); 530 extern DECLSPEC double SDLCALL SDL_ceil(double x); 531 extern DECLSPEC float SDLCALL SDL_ceilf(float x); 532 extern DECLSPEC double SDLCALL SDL_copysign(double x, double y); 533 extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y); 534 extern DECLSPEC double SDLCALL SDL_cos(double x); 535 extern DECLSPEC float SDLCALL SDL_cosf(float x); 536 extern DECLSPEC double SDLCALL SDL_exp(double x); 537 extern DECLSPEC float SDLCALL SDL_expf(float x); 538 extern DECLSPEC double SDLCALL SDL_fabs(double x); 539 extern DECLSPEC float SDLCALL SDL_fabsf(float x); 540 extern DECLSPEC double SDLCALL SDL_floor(double x); 541 extern DECLSPEC float SDLCALL SDL_floorf(float x); 542 extern DECLSPEC double SDLCALL SDL_trunc(double x); 543 extern DECLSPEC float SDLCALL SDL_truncf(float x); 544 extern DECLSPEC double SDLCALL SDL_fmod(double x, double y); 545 extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y); 546 extern DECLSPEC double SDLCALL SDL_log(double x); 547 extern DECLSPEC float SDLCALL SDL_logf(float x); 548 extern DECLSPEC double SDLCALL SDL_log10(double x); 549 extern DECLSPEC float SDLCALL SDL_log10f(float x); 550 extern DECLSPEC double SDLCALL SDL_pow(double x, double y); 551 extern DECLSPEC float SDLCALL SDL_powf(float x, float y); 552 extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n); 553 extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n); 554 extern DECLSPEC double SDLCALL SDL_sin(double x); 555 extern DECLSPEC float SDLCALL SDL_sinf(float x); 556 extern DECLSPEC double SDLCALL SDL_sqrt(double x); 557 extern DECLSPEC float SDLCALL SDL_sqrtf(float x); 558 extern DECLSPEC double SDLCALL SDL_tan(double x); 559 extern DECLSPEC float SDLCALL SDL_tanf(float x); 560 561 /* The SDL implementation of iconv() returns these error codes */ 562 #define SDL_ICONV_ERROR (size_t)-1 563 #define SDL_ICONV_E2BIG (size_t)-2 564 #define SDL_ICONV_EILSEQ (size_t)-3 565 #define SDL_ICONV_EINVAL (size_t)-4 566 567 /* SDL_iconv_* are now always real symbols/types, not macros or inlined. */ 568 typedef struct _SDL_iconv_t *SDL_iconv_t; 569 extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, 570 const char *fromcode); 571 extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd); 572 extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, 573 size_t * inbytesleft, char **outbuf, 574 size_t * outbytesleft); 575 /** 576 * This function converts a string between encodings in one pass, returning a 577 * string that must be freed with SDL_free() or NULL on error. 578 */ 579 extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode, 580 const char *fromcode, 581 const char *inbuf, 582 size_t inbytesleft); 583 #define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1) 584 #define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1) 585 #define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1) 586 587 /* force builds using Clang's static analysis tools to use literal C runtime 588 here, since there are possibly tests that are ineffective otherwise. */ 589 #if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS) 590 591 /* The analyzer knows about strlcpy even when the system doesn't provide it */ 592 #ifndef HAVE_STRLCPY 593 size_t strlcpy(char* dst, const char* src, size_t size); 594 #endif 595 596 /* The analyzer knows about strlcat even when the system doesn't provide it */ 597 #ifndef HAVE_STRLCAT 598 size_t strlcat(char* dst, const char* src, size_t size); 599 #endif 600 601 #define SDL_malloc malloc 602 #define SDL_calloc calloc 603 #define SDL_realloc realloc 604 #define SDL_free free 605 #define SDL_memset memset 606 #define SDL_memcpy memcpy 607 #define SDL_memmove memmove 608 #define SDL_memcmp memcmp 609 #define SDL_strlcpy strlcpy 610 #define SDL_strlcat strlcat 611 #define SDL_strlen strlen 612 #define SDL_wcslen wcslen 613 #define SDL_wcslcpy wcslcpy 614 #define SDL_wcslcat wcslcat 615 #define SDL_strdup strdup 616 #define SDL_wcsdup wcsdup 617 #define SDL_strchr strchr 618 #define SDL_strrchr strrchr 619 #define SDL_strstr strstr 620 #define SDL_wcsstr wcsstr 621 #define SDL_strtokr strtok_r 622 #define SDL_strcmp strcmp 623 #define SDL_wcscmp wcscmp 624 #define SDL_strncmp strncmp 625 #define SDL_wcsncmp wcsncmp 626 #define SDL_strcasecmp strcasecmp 627 #define SDL_strncasecmp strncasecmp 628 #define SDL_sscanf sscanf 629 #define SDL_vsscanf vsscanf 630 #define SDL_snprintf snprintf 631 #define SDL_vsnprintf vsnprintf 632 #endif 633 634 SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords) 635 { 636 return SDL_memcpy(dst, src, dwords * 4); 637 } 638 639 /* Ends C function definitions when using C++ */ 640 #ifdef __cplusplus 641 } 642 #endif 643 #include "close_code.h" 644 645 #endif /* SDL_stdinc_h_ */ 646 647 /* vi: set ts=4 sw=4 expandtab: */