SDL 2.0
SDL_stdinc.h
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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2023 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#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(_MSC_VER)
78/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
79 Visual Studio. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
80 for more information.
81*/
82# ifndef _USE_MATH_DEFINES
83# define _USE_MATH_DEFINES
84# endif
85# endif
86# include <math.h>
87#endif
88#ifdef HAVE_FLOAT_H
89# include <float.h>
90#endif
91#if defined(HAVE_ALLOCA) && !defined(alloca)
92# if defined(HAVE_ALLOCA_H)
93# include <alloca.h>
94# elif defined(__GNUC__)
95# define alloca __builtin_alloca
96# elif defined(_MSC_VER)
97# include <malloc.h>
98# define alloca _alloca
99# elif defined(__WATCOMC__)
100# include <malloc.h>
101# elif defined(__BORLANDC__)
102# include <malloc.h>
103# elif defined(__DMC__)
104# include <stdlib.h>
105# elif defined(__AIX__)
106#pragma alloca
107# elif defined(__MRC__)
108void *alloca(unsigned);
109# else
110char *alloca();
111# endif
112#endif
113
114#ifdef SIZE_MAX
115# define SDL_SIZE_MAX SIZE_MAX
116#else
117# define SDL_SIZE_MAX ((size_t) -1)
118#endif
119
120/**
121 * Check if the compiler supports a given builtin.
122 * Supported by virtually all clang versions and recent gcc. Use this
123 * instead of checking the clang version if possible.
124 */
125#ifdef __has_builtin
126#define _SDL_HAS_BUILTIN(x) __has_builtin(x)
127#else
128#define _SDL_HAS_BUILTIN(x) 0
129#endif
130
131/**
132 * The number of elements in an array.
133 */
134#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
135#define SDL_TABLESIZE(table) SDL_arraysize(table)
136
137/**
138 * Macro useful for building other macros with strings in them
139 *
140 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
141 */
142#define SDL_STRINGIFY_ARG(arg) #arg
143
144/**
145 * \name Cast operators
146 *
147 * Use proper C++ casts when compiled as C++ to be compatible with the option
148 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
149 */
150/* @{ */
151#ifdef __cplusplus
152#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
153#define SDL_static_cast(type, expression) static_cast<type>(expression)
154#define SDL_const_cast(type, expression) const_cast<type>(expression)
155#else
156#define SDL_reinterpret_cast(type, expression) ((type)(expression))
157#define SDL_static_cast(type, expression) ((type)(expression))
158#define SDL_const_cast(type, expression) ((type)(expression))
159#endif
160/* @} *//* Cast operators */
161
162/* Define a four character code as a Uint32 */
163#define SDL_FOURCC(A, B, C, D) \
164 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
165 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
166 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
167 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
168
169/**
170 * \name Basic data types
171 */
172/* @{ */
173
174#ifdef __CC_ARM
175/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
176#define SDL_FALSE 0
177#define SDL_TRUE 1
178typedef int SDL_bool;
179#else
180typedef enum
181{
183 SDL_TRUE = 1
185#endif
186
187/**
188 * \brief A signed 8-bit integer type.
189 */
190#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
191#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
192typedef int8_t Sint8;
193/**
194 * \brief An unsigned 8-bit integer type.
195 */
196#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
197#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
199/**
200 * \brief A signed 16-bit integer type.
201 */
202#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
203#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
205/**
206 * \brief An unsigned 16-bit integer type.
207 */
208#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
209#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
211/**
212 * \brief A signed 32-bit integer type.
213 */
214#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
215#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
217/**
218 * \brief An unsigned 32-bit integer type.
219 */
220#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
221#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
223
224/**
225 * \brief A signed 64-bit integer type.
226 */
227#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
228#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
230/**
231 * \brief An unsigned 64-bit integer type.
232 */
233#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
234#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
236
237/* @} *//* Basic data types */
238
239/**
240 * \name Floating-point constants
241 */
242/* @{ */
243
244#ifdef FLT_EPSILON
245#define SDL_FLT_EPSILON FLT_EPSILON
246#else
247#define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */
248#endif
249
250/* @} *//* Floating-point constants */
251
252/* Make sure we have macros for printing width-based integers.
253 * <stdint.h> should define these but this is not true all platforms.
254 * (for example win32) */
255#ifndef SDL_PRIs64
256#ifdef PRIs64
257#define SDL_PRIs64 PRIs64
258#elif defined(__WIN32__) || defined(__GDK__)
259#define SDL_PRIs64 "I64d"
260#elif defined(__LINUX__) && defined(__LP64__)
261#define SDL_PRIs64 "ld"
262#else
263#define SDL_PRIs64 "lld"
264#endif
265#endif
266#ifndef SDL_PRIu64
267#ifdef PRIu64
268#define SDL_PRIu64 PRIu64
269#elif defined(__WIN32__) || defined(__GDK__)
270#define SDL_PRIu64 "I64u"
271#elif defined(__LINUX__) && defined(__LP64__)
272#define SDL_PRIu64 "lu"
273#else
274#define SDL_PRIu64 "llu"
275#endif
276#endif
277#ifndef SDL_PRIx64
278#ifdef PRIx64
279#define SDL_PRIx64 PRIx64
280#elif defined(__WIN32__) || defined(__GDK__)
281#define SDL_PRIx64 "I64x"
282#elif defined(__LINUX__) && defined(__LP64__)
283#define SDL_PRIx64 "lx"
284#else
285#define SDL_PRIx64 "llx"
286#endif
287#endif
288#ifndef SDL_PRIX64
289#ifdef PRIX64
290#define SDL_PRIX64 PRIX64
291#elif defined(__WIN32__) || defined(__GDK__)
292#define SDL_PRIX64 "I64X"
293#elif defined(__LINUX__) && defined(__LP64__)
294#define SDL_PRIX64 "lX"
295#else
296#define SDL_PRIX64 "llX"
297#endif
298#endif
299#ifndef SDL_PRIs32
300#ifdef PRId32
301#define SDL_PRIs32 PRId32
302#else
303#define SDL_PRIs32 "d"
304#endif
305#endif
306#ifndef SDL_PRIu32
307#ifdef PRIu32
308#define SDL_PRIu32 PRIu32
309#else
310#define SDL_PRIu32 "u"
311#endif
312#endif
313#ifndef SDL_PRIx32
314#ifdef PRIx32
315#define SDL_PRIx32 PRIx32
316#else
317#define SDL_PRIx32 "x"
318#endif
319#endif
320#ifndef SDL_PRIX32
321#ifdef PRIX32
322#define SDL_PRIX32 PRIX32
323#else
324#define SDL_PRIX32 "X"
325#endif
326#endif
327
328/* Annotations to help code analysis tools */
329#ifdef SDL_DISABLE_ANALYZE_MACROS
330#define SDL_IN_BYTECAP(x)
331#define SDL_INOUT_Z_CAP(x)
332#define SDL_OUT_Z_CAP(x)
333#define SDL_OUT_CAP(x)
334#define SDL_OUT_BYTECAP(x)
335#define SDL_OUT_Z_BYTECAP(x)
336#define SDL_PRINTF_FORMAT_STRING
337#define SDL_SCANF_FORMAT_STRING
338#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
339#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
340#else
341#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
342#include <sal.h>
343
344#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
345#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
346#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
347#define SDL_OUT_CAP(x) _Out_cap_(x)
348#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
349#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
350
351#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
352#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
353#else
354#define SDL_IN_BYTECAP(x)
355#define SDL_INOUT_Z_CAP(x)
356#define SDL_OUT_Z_CAP(x)
357#define SDL_OUT_CAP(x)
358#define SDL_OUT_BYTECAP(x)
359#define SDL_OUT_Z_BYTECAP(x)
360#define SDL_PRINTF_FORMAT_STRING
361#define SDL_SCANF_FORMAT_STRING
362#endif
363#if defined(__GNUC__)
364#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
365#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
366#else
367#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
368#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
369#endif
370#endif /* SDL_DISABLE_ANALYZE_MACROS */
371
372#ifndef SDL_COMPILE_TIME_ASSERT
373#if defined(__cplusplus)
374#if (__cplusplus >= 201103L)
375#define SDL_COMPILE_TIME_ASSERT(name, x) static_assert(x, #x)
376#endif
377#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
378#define SDL_COMPILE_TIME_ASSERT(name, x) _Static_assert(x, #x)
379#endif
380#endif /* !SDL_COMPILE_TIME_ASSERT */
381
382#ifndef SDL_COMPILE_TIME_ASSERT
383/* universal, but may trigger -Wunused-local-typedefs */
384#define SDL_COMPILE_TIME_ASSERT(name, x) \
385 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
386#endif
387
388/** \cond */
389#ifndef DOXYGEN_SHOULD_IGNORE_THIS
390SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
391SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
392SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
393SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
394SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
395SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
396SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
397SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
398#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
399/** \endcond */
400
401/* Check to make sure enums are the size of ints, for structure packing.
402 For both Watcom C/C++ and Borland C/C++ the compiler option that makes
403 enums having the size of an int must be enabled.
404 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
405*/
406
407/** \cond */
408#ifndef DOXYGEN_SHOULD_IGNORE_THIS
409#if !defined(__ANDROID__) && !defined(__VITA__) && !defined(__3DS__)
410 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
411typedef enum
412{
413 DUMMY_ENUM_VALUE
414} SDL_DUMMY_ENUM;
415
416SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
417#endif
418#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
419/** \endcond */
420
421#include "begin_code.h"
422/* Set up for C function definitions, even when using C++ */
423#ifdef __cplusplus
424extern "C" {
425#endif
426
427#ifdef HAVE_ALLOCA
428#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
429#define SDL_stack_free(data)
430#else
431#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
432#define SDL_stack_free(data) SDL_free(data)
433#endif
434
435extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
436extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
437extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
438extern DECLSPEC void SDLCALL SDL_free(void *mem);
439
440typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
441typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
442typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
443typedef void (SDLCALL *SDL_free_func)(void *mem);
444
445/**
446 * Get the original set of SDL memory functions
447 *
448 * \since This function is available since SDL 2.24.0.
449 */
450extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
451 SDL_calloc_func *calloc_func,
452 SDL_realloc_func *realloc_func,
453 SDL_free_func *free_func);
454
455/**
456 * Get the current set of SDL memory functions
457 *
458 * \since This function is available since SDL 2.0.7.
459 */
460extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
461 SDL_calloc_func *calloc_func,
462 SDL_realloc_func *realloc_func,
463 SDL_free_func *free_func);
464
465/**
466 * Replace SDL's memory allocation functions with a custom set
467 *
468 * \since This function is available since SDL 2.0.7.
469 */
470extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
471 SDL_calloc_func calloc_func,
472 SDL_realloc_func realloc_func,
473 SDL_free_func free_func);
474
475/**
476 * Get the number of outstanding (unfreed) allocations
477 *
478 * \since This function is available since SDL 2.0.7.
479 */
480extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
481
482extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
483extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
484
485extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
486extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
487
488extern DECLSPEC int SDLCALL SDL_abs(int x);
489
490/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
491#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
492#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
493#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
494
495extern DECLSPEC int SDLCALL SDL_isalpha(int x);
496extern DECLSPEC int SDLCALL SDL_isalnum(int x);
497extern DECLSPEC int SDLCALL SDL_isblank(int x);
498extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
499extern DECLSPEC int SDLCALL SDL_isdigit(int x);
500extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
501extern DECLSPEC int SDLCALL SDL_ispunct(int x);
502extern DECLSPEC int SDLCALL SDL_isspace(int x);
503extern DECLSPEC int SDLCALL SDL_isupper(int x);
504extern DECLSPEC int SDLCALL SDL_islower(int x);
505extern DECLSPEC int SDLCALL SDL_isprint(int x);
506extern DECLSPEC int SDLCALL SDL_isgraph(int x);
507extern DECLSPEC int SDLCALL SDL_toupper(int x);
508extern DECLSPEC int SDLCALL SDL_tolower(int x);
509
510extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
511extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
512
513extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
514
515#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
516#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
517#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
518
519#define SDL_copyp(dst, src) \
520 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
521 SDL_memcpy((dst), (src), sizeof (*(src)))
522
523
524/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
525SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
526{
527#if defined(__GNUC__) && defined(__i386__)
528 int u0, u1, u2;
529 __asm__ __volatile__ (
530 "cld \n\t"
531 "rep ; stosl \n\t"
532 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
533 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
534 : "memory"
535 );
536#else
537 size_t _n = (dwords + 3) / 4;
538 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
539 Uint32 _val = (val);
540 if (dwords == 0) {
541 return;
542 }
543 switch (dwords % 4) {
544 case 0: do { *_p++ = _val; SDL_FALLTHROUGH;
545 case 3: *_p++ = _val; SDL_FALLTHROUGH;
546 case 2: *_p++ = _val; SDL_FALLTHROUGH;
547 case 1: *_p++ = _val;
548 } while ( --_n );
549 }
550#endif
551}
552
553extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
554
555extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
556extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
557
558extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
559extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
560extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
561extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
562extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
563
564extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
565extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
566extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
567extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
568
569extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
570extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
571extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
572extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
573extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
574extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
575extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
576extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
577extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
578extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
579extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
580extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
581extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
582extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
583extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
584
585extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
586extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
587extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
588extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
589extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
590extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
591
592extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
593extern DECLSPEC double SDLCALL SDL_atof(const char *str);
594extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
595extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
596extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
597extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
598extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
599
600extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
601extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
602extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
603extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
604
605extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
606extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
607extern 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);
608extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
609extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
610extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, const char *fmt, va_list ap);
611
612#ifndef HAVE_M_PI
613#ifndef M_PI
614#define M_PI 3.14159265358979323846264338327950288 /**< pi */
615#endif
616#endif
617
618/**
619 * Use this function to compute arc cosine of `x`.
620 *
621 * The definition of `y = acos(x)` is `x = cos(y)`.
622 *
623 * Domain: `-1 <= x <= 1`
624 *
625 * Range: `0 <= y <= Pi`
626 *
627 * \param x floating point value, in radians.
628 * \returns arc cosine of `x`.
629 *
630 * \since This function is available since SDL 2.0.2.
631 */
632extern DECLSPEC double SDLCALL SDL_acos(double x);
633extern DECLSPEC float SDLCALL SDL_acosf(float x);
634extern DECLSPEC double SDLCALL SDL_asin(double x);
635extern DECLSPEC float SDLCALL SDL_asinf(float x);
636extern DECLSPEC double SDLCALL SDL_atan(double x);
637extern DECLSPEC float SDLCALL SDL_atanf(float x);
638extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
639extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
640extern DECLSPEC double SDLCALL SDL_ceil(double x);
641extern DECLSPEC float SDLCALL SDL_ceilf(float x);
642extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
643extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
644extern DECLSPEC double SDLCALL SDL_cos(double x);
645extern DECLSPEC float SDLCALL SDL_cosf(float x);
646extern DECLSPEC double SDLCALL SDL_exp(double x);
647extern DECLSPEC float SDLCALL SDL_expf(float x);
648extern DECLSPEC double SDLCALL SDL_fabs(double x);
649extern DECLSPEC float SDLCALL SDL_fabsf(float x);
650extern DECLSPEC double SDLCALL SDL_floor(double x);
651extern DECLSPEC float SDLCALL SDL_floorf(float x);
652extern DECLSPEC double SDLCALL SDL_trunc(double x);
653extern DECLSPEC float SDLCALL SDL_truncf(float x);
654extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
655extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
656extern DECLSPEC double SDLCALL SDL_log(double x);
657extern DECLSPEC float SDLCALL SDL_logf(float x);
658extern DECLSPEC double SDLCALL SDL_log10(double x);
659extern DECLSPEC float SDLCALL SDL_log10f(float x);
660extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
661extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
662extern DECLSPEC double SDLCALL SDL_round(double x);
663extern DECLSPEC float SDLCALL SDL_roundf(float x);
664extern DECLSPEC long SDLCALL SDL_lround(double x);
665extern DECLSPEC long SDLCALL SDL_lroundf(float x);
666extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
667extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
668extern DECLSPEC double SDLCALL SDL_sin(double x);
669extern DECLSPEC float SDLCALL SDL_sinf(float x);
670extern DECLSPEC double SDLCALL SDL_sqrt(double x);
671extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
672extern DECLSPEC double SDLCALL SDL_tan(double x);
673extern DECLSPEC float SDLCALL SDL_tanf(float x);
674
675/* The SDL implementation of iconv() returns these error codes */
676#define SDL_ICONV_ERROR (size_t)-1
677#define SDL_ICONV_E2BIG (size_t)-2
678#define SDL_ICONV_EILSEQ (size_t)-3
679#define SDL_ICONV_EINVAL (size_t)-4
680
681/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
682typedef struct _SDL_iconv_t *SDL_iconv_t;
683extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
684 const char *fromcode);
685extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
686extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
687 size_t * inbytesleft, char **outbuf,
688 size_t * outbytesleft);
689
690/**
691 * This function converts a buffer or string between encodings in one pass, returning a
692 * string that must be freed with SDL_free() or NULL on error.
693 *
694 * \since This function is available since SDL 2.0.0.
695 */
696extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
697 const char *fromcode,
698 const char *inbuf,
699 size_t inbytesleft);
700#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
701#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
702#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
703#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
704
705/* force builds using Clang's static analysis tools to use literal C runtime
706 here, since there are possibly tests that are ineffective otherwise. */
707#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
708
709/* The analyzer knows about strlcpy even when the system doesn't provide it */
710#ifndef HAVE_STRLCPY
711size_t strlcpy(char* dst, const char* src, size_t size);
712#endif
713
714/* The analyzer knows about strlcat even when the system doesn't provide it */
715#ifndef HAVE_STRLCAT
716size_t strlcat(char* dst, const char* src, size_t size);
717#endif
718
719#ifndef HAVE_WCSLCPY
720size_t wcslcpy(wchar_t *dst, const wchar_t *src, size_t size);
721#endif
722
723#ifndef HAVE_WCSLCAT
724size_t wcslcat(wchar_t *dst, const wchar_t *src, size_t size);
725#endif
726
727/* Starting LLVM 16, the analyser errors out if these functions do not have
728 their prototype defined (clang-diagnostic-implicit-function-declaration) */
729#include <stdlib.h>
730#include <string.h>
731#include <stdio.h>
732
733#define SDL_malloc malloc
734#define SDL_calloc calloc
735#define SDL_realloc realloc
736#define SDL_free free
737#define SDL_memset memset
738#define SDL_memcpy memcpy
739#define SDL_memmove memmove
740#define SDL_memcmp memcmp
741#define SDL_strlcpy strlcpy
742#define SDL_strlcat strlcat
743#define SDL_strlen strlen
744#define SDL_wcslen wcslen
745#define SDL_wcslcpy wcslcpy
746#define SDL_wcslcat wcslcat
747#define SDL_strdup strdup
748#define SDL_wcsdup wcsdup
749#define SDL_strchr strchr
750#define SDL_strrchr strrchr
751#define SDL_strstr strstr
752#define SDL_wcsstr wcsstr
753#define SDL_strtokr strtok_r
754#define SDL_strcmp strcmp
755#define SDL_wcscmp wcscmp
756#define SDL_strncmp strncmp
757#define SDL_wcsncmp wcsncmp
758#define SDL_strcasecmp strcasecmp
759#define SDL_strncasecmp strncasecmp
760#define SDL_sscanf sscanf
761#define SDL_vsscanf vsscanf
762#define SDL_snprintf snprintf
763#define SDL_vsnprintf vsnprintf
764#endif
765
766SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
767{
768 return SDL_memcpy(dst, src, dwords * 4);
769}
770
771/**
772 * If a * b would overflow, return -1. Otherwise store a * b via ret
773 * and return 0.
774 *
775 * \since This function is available since SDL 2.24.0.
776 */
778 size_t b,
779 size_t *ret)
780{
781 if (a != 0 && b > SDL_SIZE_MAX / a) {
782 return -1;
783 }
784 *ret = a * b;
785 return 0;
786}
787
788#if _SDL_HAS_BUILTIN(__builtin_mul_overflow)
789/* This needs to be wrapped in an inline rather than being a direct #define,
790 * because __builtin_mul_overflow() is type-generic, but we want to be
791 * consistent about interpreting a and b as size_t. */
792SDL_FORCE_INLINE int _SDL_size_mul_overflow_builtin (size_t a,
793 size_t b,
794 size_t *ret)
795{
796 return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
797}
798#define SDL_size_mul_overflow(a, b, ret) (_SDL_size_mul_overflow_builtin(a, b, ret))
799#endif
800
801/**
802 * If a + b would overflow, return -1. Otherwise store a + b via ret
803 * and return 0.
804 *
805 * \since This function is available since SDL 2.24.0.
806 */
808 size_t b,
809 size_t *ret)
810{
811 if (b > SDL_SIZE_MAX - a) {
812 return -1;
813 }
814 *ret = a + b;
815 return 0;
816}
817
818#if _SDL_HAS_BUILTIN(__builtin_add_overflow)
819/* This needs to be wrapped in an inline rather than being a direct #define,
820 * the same as the call to __builtin_mul_overflow() above. */
821SDL_FORCE_INLINE int _SDL_size_add_overflow_builtin (size_t a,
822 size_t b,
823 size_t *ret)
824{
825 return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
826}
827#define SDL_size_add_overflow(a, b, ret) (_SDL_size_add_overflow_builtin(a, b, ret))
828#endif
829
830/* Ends C function definitions when using C++ */
831#ifdef __cplusplus
832}
833#endif
834#include "close_code.h"
835
836#endif /* SDL_stdinc_h_ */
837
838/* vi: set ts=4 sw=4 expandtab: */
signed short int16_t
unsigned short uint16_t
unsigned int uint32_t
unsigned long long uint64_t
signed int int32_t
unsigned char uint8_t
signed long long int64_t
signed char int8_t
wchar_t * SDL_wcsdup(const wchar_t *wstr)
double SDL_sqrt(double x)
int SDL_atoi(const char *str)
SDL_iconv_t SDL_iconv_open(const char *tocode, const char *fromcode)
float SDL_tanf(float x)
SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
Definition SDL_stdinc.h:525
int SDL_isspace(int x)
int SDL_isalnum(int x)
char * SDL_strlwr(char *str)
void * SDL_realloc(void *mem, size_t size)
int SDL_tolower(int x)
int SDL_abs(int x)
size_t SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
double SDL_tan(double x)
uint8_t Uint8
Definition SDL_stdinc.h:198
char * SDL_ltoa(long value, char *str, int radix)
int SDL_isxdigit(int x)
float SDL_ceilf(float x)
int64_t Sint64
Definition SDL_stdinc.h:229
void SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func, SDL_calloc_func *calloc_func, SDL_realloc_func *realloc_func, SDL_free_func *free_func)
void *(* SDL_malloc_func)(size_t size)
Definition SDL_stdinc.h:440
#define SDL_OUT_BYTECAP(x)
Definition SDL_stdinc.h:358
char * SDL_strrchr(const char *str, int c)
#define SDL_SIZE_MAX
Definition SDL_stdinc.h:117
int SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen)
uint16_t Uint16
Definition SDL_stdinc.h:210
int SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt,...) SDL_SCANF_VARARG_FUNC(2)
void SDL_qsort(void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
int SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap)
float SDL_atanf(float x)
int SDL_isprint(int x)
struct _SDL_iconv_t * SDL_iconv_t
Definition SDL_stdinc.h:682
int SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len)
char * SDL_itoa(int value, char *str, int radix)
char * SDL_strdup(const char *str)
float SDL_copysignf(float x, float y)
char * SDL_strupr(char *str)
float SDL_acosf(float x)
int SDL_SetMemoryFunctions(SDL_malloc_func malloc_func, SDL_calloc_func calloc_func, SDL_realloc_func realloc_func, SDL_free_func free_func)
size_t SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
SDL_FORCE_INLINE int SDL_size_mul_overflow(size_t a, size_t b, size_t *ret)
Definition SDL_stdinc.h:777
int SDL_strncmp(const char *str1, const char *str2, size_t maxlen)
char * SDL_strchr(const char *str, int c)
#define SDL_IN_BYTECAP(x)
Definition SDL_stdinc.h:354
void * SDL_malloc(size_t size)
char * SDL_uitoa(unsigned int value, char *str, int radix)
int SDL_isalpha(int x)
double SDL_round(double x)
long SDL_lround(double x)
int SDL_isdigit(int x)
int SDL_isblank(int x)
int SDL_iconv_close(SDL_iconv_t cd)
double SDL_sin(double x)
char * SDL_strcasestr(const char *haystack, const char *needle)
float SDL_scalbnf(float x, int n)
void * SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
double SDL_pow(double x, double y)
size_t SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes)
float SDL_asinf(float x)
double SDL_asin(double x)
double SDL_acos(double x)
int8_t Sint8
Definition SDL_stdinc.h:192
wchar_t * SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle)
float SDL_sinf(float x)
double SDL_ceil(double x)
size_t SDL_utf8strnlen(const char *str, size_t bytes)
void * SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len)
int SDL_strcasecmp(const char *str1, const char *str2)
#define SDL_SCANF_FORMAT_STRING
Definition SDL_stdinc.h:361
char * SDL_strstr(const char *haystack, const char *needle)
int SDL_GetNumAllocations(void)
double SDL_exp(double x)
#define SDL_static_cast(type, expression)
Definition SDL_stdinc.h:157
size_t SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
double SDL_atan(double x)
float SDL_sqrtf(float x)
size_t SDL_wcslen(const wchar_t *wstr)
int32_t Sint32
Definition SDL_stdinc.h:216
int SDL_setenv(const char *name, const char *value, int overwrite)
void * SDL_calloc(size_t nmemb, size_t size)
size_t SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
#define SDL_INOUT_Z_CAP(x)
Definition SDL_stdinc.h:355
double SDL_scalbn(double x, int n)
char * SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft)
int SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2)
char * SDL_getenv(const char *name)
double SDL_fmod(double x, double y)
char * SDL_lltoa(Sint64 value, char *str, int radix)
double SDL_fabs(double x)
Sint64 SDL_strtoll(const char *str, char **endp, int base)
int SDL_ispunct(int x)
float SDL_truncf(float x)
double SDL_log10(double x)
float SDL_expf(float x)
char * SDL_strrev(char *str)
double SDL_floor(double x)
int SDL_wcscmp(const wchar_t *str1, const wchar_t *str2)
long SDL_strtol(const char *str, char **endp, int base)
SDL_bool
Definition SDL_stdinc.h:181
@ SDL_TRUE
Definition SDL_stdinc.h:183
@ SDL_FALSE
Definition SDL_stdinc.h:182
Uint32 SDL_crc32(Uint32 crc, const void *data, size_t len)
int SDL_islower(int x)
float SDL_logf(float x)
float SDL_log10f(float x)
void * SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
void(* SDL_free_func)(void *mem)
Definition SDL_stdinc.h:443
int SDL_memcmp(const void *s1, const void *s2, size_t len)
char * SDL_ulltoa(Uint64 value, char *str, int radix)
int16_t Sint16
Definition SDL_stdinc.h:204
float SDL_roundf(float x)
double SDL_strtod(const char *str, char **endp)
long SDL_lroundf(float x)
char * SDL_ultoa(unsigned long value, char *str, int radix)
double SDL_atof(const char *str)
int SDL_vsscanf(const char *text, const char *fmt, va_list ap)
unsigned long SDL_strtoul(const char *str, char **endp, int base)
float SDL_floorf(float x)
int SDL_strcmp(const char *str1, const char *str2)
SDL_FORCE_INLINE int SDL_size_add_overflow(size_t a, size_t b, size_t *ret)
Definition SDL_stdinc.h:807
double SDL_cos(double x)
#define SDL_PRINTF_FORMAT_STRING
Definition SDL_stdinc.h:360
float SDL_fmodf(float x, float y)
void SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func, SDL_calloc_func *calloc_func, SDL_realloc_func *realloc_func, SDL_free_func *free_func)
#define SDL_PRINTF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:367
#define SDL_COMPILE_TIME_ASSERT(name, x)
Definition SDL_stdinc.h:384
float SDL_atan2f(float y, float x)
int SDL_isupper(int x)
float SDL_fabsf(float x)
uint64_t Uint64
Definition SDL_stdinc.h:235
int SDL_iscntrl(int x)
void SDL_free(void *mem)
void *(* SDL_calloc_func)(size_t nmemb, size_t size)
Definition SDL_stdinc.h:441
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:368
double SDL_atan2(double y, double x)
double SDL_log(double x)
int SDL_toupper(int x)
SDL_FORCE_INLINE void * SDL_memcpy4(SDL_OUT_BYTECAP(dwords *4) void *dst, SDL_IN_BYTECAP(dwords *4) const void *src, size_t dwords)
Definition SDL_stdinc.h:766
uint32_t Uint32
Definition SDL_stdinc.h:222
float SDL_powf(float x, float y)
size_t SDL_strlen(const char *str)
Uint16 SDL_crc16(Uint16 crc, const void *data, size_t len)
int SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt,...) SDL_PRINTF_VARARG_FUNC(3)
float SDL_cosf(float x)
void * SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
size_t SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
int SDL_vasprintf(char **strp, const char *fmt, va_list ap)
double SDL_copysign(double x, double y)
void *(* SDL_realloc_func)(void *mem, size_t size)
Definition SDL_stdinc.h:442
char * SDL_strtokr(char *s1, const char *s2, char **saveptr)
size_t SDL_utf8strlen(const char *str)
int SDL_isgraph(int x)
int SDL_strncasecmp(const char *str1, const char *str2, size_t len)
int SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt,...) SDL_PRINTF_VARARG_FUNC(2)
#define SDL_OUT_Z_CAP(x)
Definition SDL_stdinc.h:356
Uint64 SDL_strtoull(const char *str, char **endp, int base)
double SDL_trunc(double x)
#define SDL_FALLTHROUGH
Definition begin_code.h:183
#define SDL_FORCE_INLINE
Definition begin_code.h:143