Atlas - SDL_stdinc.h
Home / ext / SDL2 / include Lines: 7 | Size: 22163 bytes [Download] [Show on GitHub] [Search similar files] [Raw] [Raw (proxy)][FILE BEGIN]1/* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2018 Sam Lantinga <[email protected]> 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#ifdef HAVE_WCHAR_H 66# include <wchar.h> 67#endif 68#if defined(HAVE_INTTYPES_H) 69# include <inttypes.h> 70#elif defined(HAVE_STDINT_H) 71# include <stdint.h> 72#endif 73#ifdef HAVE_CTYPE_H 74# include <ctype.h> 75#endif 76#ifdef HAVE_MATH_H 77# if defined(__WINRT__) 78/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on 79 WinRT. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx 80 for more information. 81*/ 82# define _USE_MATH_DEFINES 83# endif 84# include <math.h> 85#endif 86#ifdef HAVE_FLOAT_H 87# include <float.h> 88#endif 89#if defined(HAVE_ALLOCA) && !defined(alloca) 90# if defined(HAVE_ALLOCA_H) 91# include <alloca.h> 92# elif defined(__GNUC__) 93# define alloca __builtin_alloca 94# elif defined(_MSC_VER) 95# include <malloc.h> 96# define alloca _alloca 97# elif defined(__WATCOMC__) 98# include <malloc.h> 99# elif defined(__BORLANDC__) 100# include <malloc.h> 101# elif defined(__DMC__) 102# include <stdlib.h> 103# elif defined(__AIX__) 104#pragma alloca 105# elif defined(__MRC__) 106void *alloca(unsigned); 107# else 108char *alloca(); 109# endif 110#endif 111 112/** 113 * The number of elements in an array. 114 */ 115#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0])) 116#define SDL_TABLESIZE(table) SDL_arraysize(table) 117 118/** 119 * Macro useful for building other macros with strings in them 120 * 121 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n") 122 */ 123#define SDL_STRINGIFY_ARG(arg) #arg 124 125/** 126 * \name Cast operators 127 * 128 * Use proper C++ casts when compiled as C++ to be compatible with the option 129 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above). 130 */ 131/* @{ */ 132#ifdef __cplusplus 133#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression) 134#define SDL_static_cast(type, expression) static_cast<type>(expression) 135#define SDL_const_cast(type, expression) const_cast<type>(expression) 136#else 137#define SDL_reinterpret_cast(type, expression) ((type)(expression)) 138#define SDL_static_cast(type, expression) ((type)(expression)) 139#define SDL_const_cast(type, expression) ((type)(expression)) 140#endif 141/* @} *//* Cast operators */ 142 143/* Define a four character code as a Uint32 */ 144#define SDL_FOURCC(A, B, C, D) \ 145 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \ 146 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \ 147 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \ 148 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24)) 149 150/** 151 * \name Basic data types 152 */ 153/* @{ */ 154 155#ifdef __CC_ARM 156/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */ 157#define SDL_FALSE 0 158#define SDL_TRUE 1 159typedef int SDL_bool; 160#else 161typedef enum 162{ 163 SDL_FALSE = 0, 164 SDL_TRUE = 1 165} SDL_bool; 166#endif 167 168/** 169 * \brief A signed 8-bit integer type. 170 */ 171#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */ 172#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */ 173typedef int8_t Sint8; 174/** 175 * \brief An unsigned 8-bit integer type. 176 */ 177#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */ 178#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */ 179typedef uint8_t Uint8; 180/** 181 * \brief A signed 16-bit integer type. 182 */ 183#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */ 184#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */ 185typedef int16_t Sint16; 186/** 187 * \brief An unsigned 16-bit integer type. 188 */ 189#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */ 190#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */ 191typedef uint16_t Uint16; 192/** 193 * \brief A signed 32-bit integer type. 194 */ 195#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */ 196#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */ 197typedef int32_t Sint32; 198/** 199 * \brief An unsigned 32-bit integer type. 200 */ 201#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */ 202#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */ 203typedef uint32_t Uint32; 204 205/** 206 * \brief A signed 64-bit integer type. 207 */ 208#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */ 209#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */ 210typedef int64_t Sint64; 211/** 212 * \brief An unsigned 64-bit integer type. 213 */ 214#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */ 215#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */ 216typedef uint64_t Uint64; 217 218/* @} *//* Basic data types */ 219 220/* Make sure we have macros for printing 64 bit values. 221 * <stdint.h> should define these but this is not true all platforms. 222 * (for example win32) */ 223#ifndef SDL_PRIs64 224#ifdef PRIs64 225#define SDL_PRIs64 PRIs64 226#elif defined(__WIN32__) 227#define SDL_PRIs64 "I64d" 228#elif defined(__LINUX__) && defined(__LP64__) 229#define SDL_PRIs64 "ld" 230#else 231#define SDL_PRIs64 "lld" 232#endif 233#endif 234#ifndef SDL_PRIu64 235#ifdef PRIu64 236#define SDL_PRIu64 PRIu64 237#elif defined(__WIN32__) 238#define SDL_PRIu64 "I64u" 239#elif defined(__LINUX__) && defined(__LP64__) 240#define SDL_PRIu64 "lu" 241#else 242#define SDL_PRIu64 "llu" 243#endif 244#endif 245#ifndef SDL_PRIx64 246#ifdef PRIx64 247#define SDL_PRIx64 PRIx64 248#elif defined(__WIN32__) 249#define SDL_PRIx64 "I64x" 250#elif defined(__LINUX__) && defined(__LP64__) 251#define SDL_PRIx64 "lx" 252#else 253#define SDL_PRIx64 "llx" 254#endif 255#endif 256#ifndef SDL_PRIX64 257#ifdef PRIX64 258#define SDL_PRIX64 PRIX64 259#elif defined(__WIN32__) 260#define SDL_PRIX64 "I64X" 261#elif defined(__LINUX__) && defined(__LP64__) 262#define SDL_PRIX64 "lX" 263#else 264#define SDL_PRIX64 "llX" 265#endif 266#endif 267 268/* Annotations to help code analysis tools */ 269#ifdef SDL_DISABLE_ANALYZE_MACROS 270#define SDL_IN_BYTECAP(x) 271#define SDL_INOUT_Z_CAP(x) 272#define SDL_OUT_Z_CAP(x) 273#define SDL_OUT_CAP(x) 274#define SDL_OUT_BYTECAP(x) 275#define SDL_OUT_Z_BYTECAP(x) 276#define SDL_PRINTF_FORMAT_STRING 277#define SDL_SCANF_FORMAT_STRING 278#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) 279#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) 280#else 281#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */ 282#include <sal.h> 283 284#define SDL_IN_BYTECAP(x) _In_bytecount_(x) 285#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x) 286#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x) 287#define SDL_OUT_CAP(x) _Out_cap_(x) 288#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x) 289#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x) 290 291#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_ 292#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_ 293#else 294#define SDL_IN_BYTECAP(x) 295#define SDL_INOUT_Z_CAP(x) 296#define SDL_OUT_Z_CAP(x) 297#define SDL_OUT_CAP(x) 298#define SDL_OUT_BYTECAP(x) 299#define SDL_OUT_Z_BYTECAP(x) 300#define SDL_PRINTF_FORMAT_STRING 301#define SDL_SCANF_FORMAT_STRING 302#endif 303#if defined(__GNUC__) 304#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 ))) 305#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 ))) 306#else 307#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) 308#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) 309#endif 310#endif /* SDL_DISABLE_ANALYZE_MACROS */ 311 312#define SDL_COMPILE_TIME_ASSERT(name, x) \ 313 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1] 314/** \cond */ 315#ifndef DOXYGEN_SHOULD_IGNORE_THIS 316SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1); 317SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1); 318SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2); 319SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2); 320SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4); 321SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4); 322SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8); 323SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8); 324#endif /* DOXYGEN_SHOULD_IGNORE_THIS */ 325/** \endcond */ 326 327/* Check to make sure enums are the size of ints, for structure packing. 328 For both Watcom C/C++ and Borland C/C++ the compiler option that makes 329 enums having the size of an int must be enabled. 330 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11). 331*/ 332 333/** \cond */ 334#ifndef DOXYGEN_SHOULD_IGNORE_THIS 335#if !defined(__ANDROID__) 336 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */ 337typedef enum 338{ 339 DUMMY_ENUM_VALUE 340} SDL_DUMMY_ENUM; 341 342SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int)); 343#endif 344#endif /* DOXYGEN_SHOULD_IGNORE_THIS */ 345/** \endcond */ 346 347#include "begin_code.h" 348/* Set up for C function definitions, even when using C++ */ 349#ifdef __cplusplus 350extern "C" { 351#endif 352 353#ifdef HAVE_ALLOCA 354#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count)) 355#define SDL_stack_free(data) 356#else 357#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count)) 358#define SDL_stack_free(data) SDL_free(data) 359#endif 360 361extern DECLSPEC void *SDLCALL SDL_malloc(size_t size); 362extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size); 363extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size); 364extern DECLSPEC void SDLCALL SDL_free(void *mem); 365 366typedef void *(SDLCALL *SDL_malloc_func)(size_t size); 367typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size); 368typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size); 369typedef void (SDLCALL *SDL_free_func)(void *mem); 370 371/** 372 * \brief Get the current set of SDL memory functions 373 */ 374extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func, 375 SDL_calloc_func *calloc_func, 376 SDL_realloc_func *realloc_func, 377 SDL_free_func *free_func); 378 379/** 380 * \brief Replace SDL's memory allocation functions with a custom set 381 * 382 * \note If you are replacing SDL's memory functions, you should call 383 * SDL_GetNumAllocations() and be very careful if it returns non-zero. 384 * That means that your free function will be called with memory 385 * allocated by the previous memory allocation functions. 386 */ 387extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func, 388 SDL_calloc_func calloc_func, 389 SDL_realloc_func realloc_func, 390 SDL_free_func free_func); 391 392/** 393 * \brief Get the number of outstanding (unfreed) allocations 394 */ 395extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void); 396 397extern DECLSPEC char *SDLCALL SDL_getenv(const char *name); 398extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite); 399 400extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *)); 401 402extern DECLSPEC int SDLCALL SDL_abs(int x); 403 404/* !!! FIXME: these have side effects. You probably shouldn't use them. */ 405/* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */ 406#define SDL_min(x, y) (((x) < (y)) ? (x) : (y)) 407#define SDL_max(x, y) (((x) > (y)) ? (x) : (y)) 408 409extern DECLSPEC int SDLCALL SDL_isdigit(int x); 410extern DECLSPEC int SDLCALL SDL_isspace(int x); 411extern DECLSPEC int SDLCALL SDL_toupper(int x); 412extern DECLSPEC int SDLCALL SDL_tolower(int x); 413 414extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len); 415 416#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x))) 417#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x))) 418 419/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */ 420SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords) 421{ 422#if defined(__GNUC__) && defined(i386) 423 int u0, u1, u2; 424 __asm__ __volatile__ ( 425 "cld \n\t" 426 "rep ; stosl \n\t" 427 : "=&D" (u0), "=&a" (u1), "=&c" (u2) 428 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords)) 429 : "memory" 430 ); 431#else 432 size_t _n = (dwords + 3) / 4; 433 Uint32 *_p = SDL_static_cast(Uint32 *, dst); 434 Uint32 _val = (val); 435 if (dwords == 0) 436 return; 437 switch (dwords % 4) 438 { 439 case 0: do { *_p++ = _val; /* fallthrough */ 440 case 3: *_p++ = _val; /* fallthrough */ 441 case 2: *_p++ = _val; /* fallthrough */ 442 case 1: *_p++ = _val; /* fallthrough */ 443 } while ( --_n ); 444 } 445#endif 446} 447 448extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len); 449 450extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len); 451extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len); 452 453extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr); 454extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr); 455extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen); 456extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen); 457extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2); 458 459extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str); 460extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen); 461extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes); 462extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen); 463extern DECLSPEC char *SDLCALL SDL_strdup(const char *str); 464extern DECLSPEC char *SDLCALL SDL_strrev(char *str); 465extern DECLSPEC char *SDLCALL SDL_strupr(char *str); 466extern DECLSPEC char *SDLCALL SDL_strlwr(char *str); 467extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c); 468extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c); 469extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle); 470extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str); 471 472extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix); 473extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix); 474extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix); 475extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix); 476extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix); 477extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix); 478 479extern DECLSPEC int SDLCALL SDL_atoi(const char *str); 480extern DECLSPEC double SDLCALL SDL_atof(const char *str); 481extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base); 482extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base); 483extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base); 484extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base); 485extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp); 486 487extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2); 488extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen); 489extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2); 490extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len); 491 492extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2); 493extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap); 494extern 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); 495extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap); 496 497#ifndef HAVE_M_PI 498#ifndef M_PI 499#define M_PI 3.14159265358979323846264338327950288 /**< pi */ 500#endif 501#endif 502 503extern DECLSPEC double SDLCALL SDL_acos(double x); 504extern DECLSPEC float SDLCALL SDL_acosf(float x); 505extern DECLSPEC double SDLCALL SDL_asin(double x); 506extern DECLSPEC float SDLCALL SDL_asinf(float x); 507extern DECLSPEC double SDLCALL SDL_atan(double x); 508extern DECLSPEC float SDLCALL SDL_atanf(float x); 509extern DECLSPEC double SDLCALL SDL_atan2(double x, double y); 510extern DECLSPEC float SDLCALL SDL_atan2f(float x, float y); 511extern DECLSPEC double SDLCALL SDL_ceil(double x); 512extern DECLSPEC float SDLCALL SDL_ceilf(float x); 513extern DECLSPEC double SDLCALL SDL_copysign(double x, double y); 514extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y); 515extern DECLSPEC double SDLCALL SDL_cos(double x); 516extern DECLSPEC float SDLCALL SDL_cosf(float x); 517extern DECLSPEC double SDLCALL SDL_exp(double x); 518extern DECLSPEC float SDLCALL SDL_expf(float x); 519extern DECLSPEC double SDLCALL SDL_fabs(double x); 520extern DECLSPEC float SDLCALL SDL_fabsf(float x); 521extern DECLSPEC double SDLCALL SDL_floor(double x); 522extern DECLSPEC float SDLCALL SDL_floorf(float x); 523extern DECLSPEC double SDLCALL SDL_fmod(double x, double y); 524extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y); 525extern DECLSPEC double SDLCALL SDL_log(double x); 526extern DECLSPEC float SDLCALL SDL_logf(float x); 527extern DECLSPEC double SDLCALL SDL_log10(double x); 528extern DECLSPEC float SDLCALL SDL_log10f(float x); 529extern DECLSPEC double SDLCALL SDL_pow(double x, double y); 530extern DECLSPEC float SDLCALL SDL_powf(float x, float y); 531extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n); 532extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n); 533extern DECLSPEC double SDLCALL SDL_sin(double x); 534extern DECLSPEC float SDLCALL SDL_sinf(float x); 535extern DECLSPEC double SDLCALL SDL_sqrt(double x); 536extern DECLSPEC float SDLCALL SDL_sqrtf(float x); 537extern DECLSPEC double SDLCALL SDL_tan(double x); 538extern DECLSPEC float SDLCALL SDL_tanf(float x); 539 540/* The SDL implementation of iconv() returns these error codes */ 541#define SDL_ICONV_ERROR (size_t)-1 542#define SDL_ICONV_E2BIG (size_t)-2 543#define SDL_ICONV_EILSEQ (size_t)-3 544#define SDL_ICONV_EINVAL (size_t)-4 545 546/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */ 547typedef struct _SDL_iconv_t *SDL_iconv_t; 548extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, 549 const char *fromcode); 550extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd); 551extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, 552 size_t * inbytesleft, char **outbuf, 553 size_t * outbytesleft); 554/** 555 * This function converts a string between encodings in one pass, returning a 556 * string that must be freed with SDL_free() or NULL on error. 557 */ 558extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode, 559 const char *fromcode, 560 const char *inbuf, 561 size_t inbytesleft); 562#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1) 563#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1) 564#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1) 565 566/* force builds using Clang's static analysis tools to use literal C runtime 567 here, since there are possibly tests that are ineffective otherwise. */ 568#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS) 569#define SDL_malloc malloc 570#define SDL_calloc calloc 571#define SDL_realloc realloc 572#define SDL_free free 573#define SDL_memset memset 574#define SDL_memcpy memcpy 575#define SDL_memmove memmove 576#define SDL_memcmp memcmp 577#define SDL_strlen strlen 578#define SDL_strlcpy strlcpy 579#define SDL_strlcat strlcat 580#define SDL_strdup strdup 581#define SDL_strchr strchr 582#define SDL_strrchr strrchr 583#define SDL_strstr strstr 584#define SDL_strcmp strcmp 585#define SDL_strncmp strncmp 586#define SDL_strcasecmp strcasecmp 587#define SDL_strncasecmp strncasecmp 588#define SDL_sscanf sscanf 589#define SDL_vsscanf vsscanf 590#define SDL_snprintf snprintf 591#define SDL_vsnprintf vsnprintf 592#endif 593 594SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords) 595{ 596 return SDL_memcpy(dst, src, dwords * 4); 597} 598 599/* Ends C function definitions when using C++ */ 600#ifdef __cplusplus 601} 602#endif 603#include "close_code.h" 604 605#endif /* SDL_stdinc_h_ */ 606 607/* vi: set ts=4 sw=4 expandtab: */ 608[FILE END](C) 2025 0x4248 (C) 2025 4248 Media and 4248 Systems, All part of 0x4248 See LICENCE files for more information. Not all files are by 0x4248 always check Licencing.