SDL 2.0
SDL_stdinc.h
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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2022 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(_MSC_VER)
84/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
85 Visual Studio. 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__)
112void *alloca(unsigned);
113# else
114char *alloca();
115# endif
116#endif
117
118#ifdef SIZE_MAX
119# define SDL_SIZE_MAX SIZE_MAX
120#else
121# define SDL_SIZE_MAX ((size_t) -1)
122#endif
123
124/**
125 * Check if the compiler supports a given builtin.
126 * Supported by virtually all clang versions and recent gcc. Use this
127 * instead of checking the clang version if possible.
128 */
129#ifdef __has_builtin
130#define _SDL_HAS_BUILTIN(x) __has_builtin(x)
131#else
132#define _SDL_HAS_BUILTIN(x) 0
133#endif
134
135/**
136 * The number of elements in an array.
137 */
138#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
139#define SDL_TABLESIZE(table) SDL_arraysize(table)
140
141/**
142 * Macro useful for building other macros with strings in them
143 *
144 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
145 */
146#define SDL_STRINGIFY_ARG(arg) #arg
147
148/**
149 * \name Cast operators
150 *
151 * Use proper C++ casts when compiled as C++ to be compatible with the option
152 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
153 */
154/* @{ */
155#ifdef __cplusplus
156#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
157#define SDL_static_cast(type, expression) static_cast<type>(expression)
158#define SDL_const_cast(type, expression) const_cast<type>(expression)
159#else
160#define SDL_reinterpret_cast(type, expression) ((type)(expression))
161#define SDL_static_cast(type, expression) ((type)(expression))
162#define SDL_const_cast(type, expression) ((type)(expression))
163#endif
164/* @} *//* Cast operators */
165
166/* Define a four character code as a Uint32 */
167#define SDL_FOURCC(A, B, C, D) \
168 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
169 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
170 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
171 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
172
173/**
174 * \name Basic data types
175 */
176/* @{ */
177
178#ifdef __CC_ARM
179/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
180#define SDL_FALSE 0
181#define SDL_TRUE 1
182typedef int SDL_bool;
183#else
184typedef enum
185{
187 SDL_TRUE = 1
189#endif
190
191/**
192 * \brief A signed 8-bit integer type.
193 */
194#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
195#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
196typedef int8_t Sint8;
197/**
198 * \brief An unsigned 8-bit integer type.
199 */
200#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
201#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
203/**
204 * \brief A signed 16-bit integer type.
205 */
206#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
207#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
209/**
210 * \brief An unsigned 16-bit integer type.
211 */
212#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
213#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
215/**
216 * \brief A signed 32-bit integer type.
217 */
218#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
219#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
221/**
222 * \brief An unsigned 32-bit integer type.
223 */
224#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
225#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
227
228/**
229 * \brief A signed 64-bit integer type.
230 */
231#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
232#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
234/**
235 * \brief An unsigned 64-bit integer type.
236 */
237#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
238#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
240
241/* @} *//* Basic data types */
242
243/**
244 * \name Floating-point constants
245 */
246/* @{ */
247
248#ifdef FLT_EPSILON
249#define SDL_FLT_EPSILON FLT_EPSILON
250#else
251#define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */
252#endif
253
254/* @} *//* Floating-point constants */
255
256/* Make sure we have macros for printing width-based integers.
257 * <stdint.h> should define these but this is not true all platforms.
258 * (for example win32) */
259#ifndef SDL_PRIs64
260#ifdef PRIs64
261#define SDL_PRIs64 PRIs64
262#elif defined(__WIN32__) || defined(__GDK__)
263#define SDL_PRIs64 "I64d"
264#elif defined(__LINUX__) && defined(__LP64__)
265#define SDL_PRIs64 "ld"
266#else
267#define SDL_PRIs64 "lld"
268#endif
269#endif
270#ifndef SDL_PRIu64
271#ifdef PRIu64
272#define SDL_PRIu64 PRIu64
273#elif defined(__WIN32__) || defined(__GDK__)
274#define SDL_PRIu64 "I64u"
275#elif defined(__LINUX__) && defined(__LP64__)
276#define SDL_PRIu64 "lu"
277#else
278#define SDL_PRIu64 "llu"
279#endif
280#endif
281#ifndef SDL_PRIx64
282#ifdef PRIx64
283#define SDL_PRIx64 PRIx64
284#elif defined(__WIN32__) || defined(__GDK__)
285#define SDL_PRIx64 "I64x"
286#elif defined(__LINUX__) && defined(__LP64__)
287#define SDL_PRIx64 "lx"
288#else
289#define SDL_PRIx64 "llx"
290#endif
291#endif
292#ifndef SDL_PRIX64
293#ifdef PRIX64
294#define SDL_PRIX64 PRIX64
295#elif defined(__WIN32__) || defined(__GDK__)
296#define SDL_PRIX64 "I64X"
297#elif defined(__LINUX__) && defined(__LP64__)
298#define SDL_PRIX64 "lX"
299#else
300#define SDL_PRIX64 "llX"
301#endif
302#endif
303#ifndef SDL_PRIs32
304#ifdef PRId32
305#define SDL_PRIs32 PRId32
306#else
307#define SDL_PRIs32 "d"
308#endif
309#endif
310#ifndef SDL_PRIu32
311#ifdef PRIu32
312#define SDL_PRIu32 PRIu32
313#else
314#define SDL_PRIu32 "u"
315#endif
316#endif
317#ifndef SDL_PRIx32
318#ifdef PRIx32
319#define SDL_PRIx32 PRIx32
320#else
321#define SDL_PRIx32 "x"
322#endif
323#endif
324#ifndef SDL_PRIX32
325#ifdef PRIX32
326#define SDL_PRIX32 PRIX32
327#else
328#define SDL_PRIX32 "X"
329#endif
330#endif
331
332/* Annotations to help code analysis tools */
333#ifdef SDL_DISABLE_ANALYZE_MACROS
334#define SDL_IN_BYTECAP(x)
335#define SDL_INOUT_Z_CAP(x)
336#define SDL_OUT_Z_CAP(x)
337#define SDL_OUT_CAP(x)
338#define SDL_OUT_BYTECAP(x)
339#define SDL_OUT_Z_BYTECAP(x)
340#define SDL_PRINTF_FORMAT_STRING
341#define SDL_SCANF_FORMAT_STRING
342#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
343#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
344#else
345#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
346#include <sal.h>
347
348#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
349#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
350#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
351#define SDL_OUT_CAP(x) _Out_cap_(x)
352#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
353#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
354
355#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
356#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
357#else
358#define SDL_IN_BYTECAP(x)
359#define SDL_INOUT_Z_CAP(x)
360#define SDL_OUT_Z_CAP(x)
361#define SDL_OUT_CAP(x)
362#define SDL_OUT_BYTECAP(x)
363#define SDL_OUT_Z_BYTECAP(x)
364#define SDL_PRINTF_FORMAT_STRING
365#define SDL_SCANF_FORMAT_STRING
366#endif
367#if defined(__GNUC__)
368#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
369#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
370#else
371#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
372#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
373#endif
374#endif /* SDL_DISABLE_ANALYZE_MACROS */
375
376#ifndef SDL_COMPILE_TIME_ASSERT
377#if defined(__cplusplus)
378#if (__cplusplus >= 201103L)
379#define SDL_COMPILE_TIME_ASSERT(name, x) static_assert(x, #x)
380#endif
381#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
382#define SDL_COMPILE_TIME_ASSERT(name, x) _Static_assert(x, #x)
383#endif
384#endif /* !SDL_COMPILE_TIME_ASSERT */
385
386#ifndef SDL_COMPILE_TIME_ASSERT
387/* universal, but may trigger -Wunused-local-typedefs */
388#define SDL_COMPILE_TIME_ASSERT(name, x) \
389 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
390#endif
391
392/** \cond */
393#ifndef DOXYGEN_SHOULD_IGNORE_THIS
394SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
395SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
396SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
397SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
398SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
399SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
400SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
401SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
402#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
403/** \endcond */
404
405/* Check to make sure enums are the size of ints, for structure packing.
406 For both Watcom C/C++ and Borland C/C++ the compiler option that makes
407 enums having the size of an int must be enabled.
408 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
409*/
410
411/** \cond */
412#ifndef DOXYGEN_SHOULD_IGNORE_THIS
413#if !defined(__ANDROID__) && !defined(__VITA__) && !defined(__3DS__)
414 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
415typedef enum
416{
417 DUMMY_ENUM_VALUE
418} SDL_DUMMY_ENUM;
419
420SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
421#endif
422#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
423/** \endcond */
424
425#include "begin_code.h"
426/* Set up for C function definitions, even when using C++ */
427#ifdef __cplusplus
428extern "C" {
429#endif
430
431#ifdef HAVE_ALLOCA
432#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
433#define SDL_stack_free(data)
434#else
435#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
436#define SDL_stack_free(data) SDL_free(data)
437#endif
438
439extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
440extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
441extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
442extern DECLSPEC void SDLCALL SDL_free(void *mem);
443
444typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
445typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
446typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
447typedef void (SDLCALL *SDL_free_func)(void *mem);
448
449/**
450 * Get the original set of SDL memory functions
451 *
452 * \since This function is available since SDL 2.24.0.
453 */
454extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
455 SDL_calloc_func *calloc_func,
456 SDL_realloc_func *realloc_func,
457 SDL_free_func *free_func);
458
459/**
460 * Get the current set of SDL memory functions
461 *
462 * \since This function is available since SDL 2.0.7.
463 */
464extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
465 SDL_calloc_func *calloc_func,
466 SDL_realloc_func *realloc_func,
467 SDL_free_func *free_func);
468
469/**
470 * Replace SDL's memory allocation functions with a custom set
471 *
472 * \since This function is available since SDL 2.0.7.
473 */
474extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
475 SDL_calloc_func calloc_func,
476 SDL_realloc_func realloc_func,
477 SDL_free_func free_func);
478
479/**
480 * Get the number of outstanding (unfreed) allocations
481 *
482 * \since This function is available since SDL 2.0.7.
483 */
484extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
485
486extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
487extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
488
489extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
490extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
491
492extern DECLSPEC int SDLCALL SDL_abs(int x);
493
494/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
495#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
496#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
497#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
498
499extern DECLSPEC int SDLCALL SDL_isalpha(int x);
500extern DECLSPEC int SDLCALL SDL_isalnum(int x);
501extern DECLSPEC int SDLCALL SDL_isblank(int x);
502extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
503extern DECLSPEC int SDLCALL SDL_isdigit(int x);
504extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
505extern DECLSPEC int SDLCALL SDL_ispunct(int x);
506extern DECLSPEC int SDLCALL SDL_isspace(int x);
507extern DECLSPEC int SDLCALL SDL_isupper(int x);
508extern DECLSPEC int SDLCALL SDL_islower(int x);
509extern DECLSPEC int SDLCALL SDL_isprint(int x);
510extern DECLSPEC int SDLCALL SDL_isgraph(int x);
511extern DECLSPEC int SDLCALL SDL_toupper(int x);
512extern DECLSPEC int SDLCALL SDL_tolower(int x);
513
514extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
515extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
516
517extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
518
519#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
520#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
521#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
522
523#define SDL_copyp(dst, src) \
524 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
525 SDL_memcpy((dst), (src), sizeof (*(src)))
526
527
528/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
529SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
530{
531#ifdef __APPLE__
532 memset_pattern4(dst, &val, dwords * 4);
533#elif defined(__GNUC__) && defined(__i386__)
534 int u0, u1, u2;
535 __asm__ __volatile__ (
536 "cld \n\t"
537 "rep ; stosl \n\t"
538 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
539 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
540 : "memory"
541 );
542#else
543 size_t _n = (dwords + 3) / 4;
544 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
545 Uint32 _val = (val);
546 if (dwords == 0) {
547 return;
548 }
549 switch (dwords % 4) {
550 case 0: do { *_p++ = _val; SDL_FALLTHROUGH;
551 case 3: *_p++ = _val; SDL_FALLTHROUGH;
552 case 2: *_p++ = _val; SDL_FALLTHROUGH;
553 case 1: *_p++ = _val;
554 } while ( --_n );
555 }
556#endif
557}
558
559extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
560
561extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
562extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
563
564extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
565extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
566extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
567extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
568extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
569
570extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
571extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
572extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
573extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
574
575extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
576extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
577extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
578extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
579extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
580extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
581extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
582extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
583extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
584extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
585extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
586extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
587extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
588extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
589extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
590
591extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
592extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
593extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
594extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
595extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
596extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
597
598extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
599extern DECLSPEC double SDLCALL SDL_atof(const char *str);
600extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
601extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
602extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
603extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
604extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
605
606extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
607extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
608extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
609extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
610
611extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
612extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
613extern 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);
614extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
615extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
616extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, const char *fmt, va_list ap);
617
618#ifndef HAVE_M_PI
619#ifndef M_PI
620#define M_PI 3.14159265358979323846264338327950288 /**< pi */
621#endif
622#endif
623
624/**
625 * Use this function to compute arc cosine of `x`.
626 *
627 * The definition of `y = acos(x)` is `x = cos(y)`.
628 *
629 * Domain: `-1 <= x <= 1`
630 *
631 * Range: `0 <= y <= Pi`
632 *
633 * \param x floating point value, in radians.
634 * \returns arc cosine of `x`.
635 *
636 * \since This function is available since SDL 2.0.2.
637 */
638extern DECLSPEC double SDLCALL SDL_acos(double x);
639extern DECLSPEC float SDLCALL SDL_acosf(float x);
640extern DECLSPEC double SDLCALL SDL_asin(double x);
641extern DECLSPEC float SDLCALL SDL_asinf(float x);
642extern DECLSPEC double SDLCALL SDL_atan(double x);
643extern DECLSPEC float SDLCALL SDL_atanf(float x);
644extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
645extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
646extern DECLSPEC double SDLCALL SDL_ceil(double x);
647extern DECLSPEC float SDLCALL SDL_ceilf(float x);
648extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
649extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
650extern DECLSPEC double SDLCALL SDL_cos(double x);
651extern DECLSPEC float SDLCALL SDL_cosf(float x);
652extern DECLSPEC double SDLCALL SDL_exp(double x);
653extern DECLSPEC float SDLCALL SDL_expf(float x);
654extern DECLSPEC double SDLCALL SDL_fabs(double x);
655extern DECLSPEC float SDLCALL SDL_fabsf(float x);
656extern DECLSPEC double SDLCALL SDL_floor(double x);
657extern DECLSPEC float SDLCALL SDL_floorf(float x);
658extern DECLSPEC double SDLCALL SDL_trunc(double x);
659extern DECLSPEC float SDLCALL SDL_truncf(float x);
660extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
661extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
662extern DECLSPEC double SDLCALL SDL_log(double x);
663extern DECLSPEC float SDLCALL SDL_logf(float x);
664extern DECLSPEC double SDLCALL SDL_log10(double x);
665extern DECLSPEC float SDLCALL SDL_log10f(float x);
666extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
667extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
668extern DECLSPEC double SDLCALL SDL_round(double x);
669extern DECLSPEC float SDLCALL SDL_roundf(float x);
670extern DECLSPEC long SDLCALL SDL_lround(double x);
671extern DECLSPEC long SDLCALL SDL_lroundf(float x);
672extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
673extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
674extern DECLSPEC double SDLCALL SDL_sin(double x);
675extern DECLSPEC float SDLCALL SDL_sinf(float x);
676extern DECLSPEC double SDLCALL SDL_sqrt(double x);
677extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
678extern DECLSPEC double SDLCALL SDL_tan(double x);
679extern DECLSPEC float SDLCALL SDL_tanf(float x);
680
681/* The SDL implementation of iconv() returns these error codes */
682#define SDL_ICONV_ERROR (size_t)-1
683#define SDL_ICONV_E2BIG (size_t)-2
684#define SDL_ICONV_EILSEQ (size_t)-3
685#define SDL_ICONV_EINVAL (size_t)-4
686
687/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
688typedef struct _SDL_iconv_t *SDL_iconv_t;
689extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
690 const char *fromcode);
691extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
692extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
693 size_t * inbytesleft, char **outbuf,
694 size_t * outbytesleft);
695
696/**
697 * This function converts a string between encodings in one pass, returning a
698 * string that must be freed with SDL_free() or NULL on error.
699 *
700 * \since This function is available since SDL 2.0.0.
701 */
702extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
703 const char *fromcode,
704 const char *inbuf,
705 size_t inbytesleft);
706#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
707#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
708#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
709#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
710
711/* force builds using Clang's static analysis tools to use literal C runtime
712 here, since there are possibly tests that are ineffective otherwise. */
713#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
714
715/* The analyzer knows about strlcpy even when the system doesn't provide it */
716#ifndef HAVE_STRLCPY
717size_t strlcpy(char* dst, const char* src, size_t size);
718#endif
719
720/* The analyzer knows about strlcat even when the system doesn't provide it */
721#ifndef HAVE_STRLCAT
722size_t strlcat(char* dst, const char* src, size_t size);
723#endif
724
725#define SDL_malloc malloc
726#define SDL_calloc calloc
727#define SDL_realloc realloc
728#define SDL_free free
729#define SDL_memset memset
730#define SDL_memcpy memcpy
731#define SDL_memmove memmove
732#define SDL_memcmp memcmp
733#define SDL_strlcpy strlcpy
734#define SDL_strlcat strlcat
735#define SDL_strlen strlen
736#define SDL_wcslen wcslen
737#define SDL_wcslcpy wcslcpy
738#define SDL_wcslcat wcslcat
739#define SDL_strdup strdup
740#define SDL_wcsdup wcsdup
741#define SDL_strchr strchr
742#define SDL_strrchr strrchr
743#define SDL_strstr strstr
744#define SDL_wcsstr wcsstr
745#define SDL_strtokr strtok_r
746#define SDL_strcmp strcmp
747#define SDL_wcscmp wcscmp
748#define SDL_strncmp strncmp
749#define SDL_wcsncmp wcsncmp
750#define SDL_strcasecmp strcasecmp
751#define SDL_strncasecmp strncasecmp
752#define SDL_sscanf sscanf
753#define SDL_vsscanf vsscanf
754#define SDL_snprintf snprintf
755#define SDL_vsnprintf vsnprintf
756#endif
757
758SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
759{
760 return SDL_memcpy(dst, src, dwords * 4);
761}
762
763/**
764 * If a * b would overflow, return -1. Otherwise store a * b via ret
765 * and return 0.
766 *
767 * \since This function is available since SDL 2.24.0.
768 */
770 size_t b,
771 size_t *ret)
772{
773 if (a != 0 && b > SDL_SIZE_MAX / a) {
774 return -1;
775 }
776 *ret = a * b;
777 return 0;
778}
779
780#if _SDL_HAS_BUILTIN(__builtin_mul_overflow)
781/* This needs to be wrapped in an inline rather than being a direct #define,
782 * because __builtin_mul_overflow() is type-generic, but we want to be
783 * consistent about interpreting a and b as size_t. */
784SDL_FORCE_INLINE int _SDL_size_mul_overflow_builtin (size_t a,
785 size_t b,
786 size_t *ret)
787{
788 return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
789}
790#define SDL_size_mul_overflow(a, b, ret) (_SDL_size_mul_overflow_builtin(a, b, ret))
791#endif
792
793/**
794 * If a + b would overflow, return -1. Otherwise store a + b via ret
795 * and return 0.
796 *
797 * \since This function is available since SDL 2.24.0.
798 */
800 size_t b,
801 size_t *ret)
802{
803 if (b > SDL_SIZE_MAX - a) {
804 return -1;
805 }
806 *ret = a + b;
807 return 0;
808}
809
810#if _SDL_HAS_BUILTIN(__builtin_add_overflow)
811/* This needs to be wrapped in an inline rather than being a direct #define,
812 * the same as the call to __builtin_mul_overflow() above. */
813SDL_FORCE_INLINE int _SDL_size_add_overflow_builtin (size_t a,
814 size_t b,
815 size_t *ret)
816{
817 return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
818}
819#define SDL_size_add_overflow(a, b, ret) (_SDL_size_add_overflow_builtin(a, b, ret))
820#endif
821
822/* Ends C function definitions when using C++ */
823#ifdef __cplusplus
824}
825#endif
826#include "close_code.h"
827
828#endif /* SDL_stdinc_h_ */
829
830/* 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:529
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:202
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:233
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:444
#define SDL_OUT_BYTECAP(x)
Definition: SDL_stdinc.h:362
char * SDL_strrchr(const char *str, int c)
#define SDL_SIZE_MAX
Definition: SDL_stdinc.h:121
int SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen)
uint16_t Uint16
Definition: SDL_stdinc.h:214
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:688
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:769
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:358
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:196
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:365
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:161
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:220
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:359
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:185
@ SDL_TRUE
Definition: SDL_stdinc.h:187
@ SDL_FALSE
Definition: SDL_stdinc.h:186
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:447
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:208
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:799
double SDL_cos(double x)
#define SDL_PRINTF_FORMAT_STRING
Definition: SDL_stdinc.h:364
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:371
#define SDL_COMPILE_TIME_ASSERT(name, x)
Definition: SDL_stdinc.h:388
float SDL_atan2f(float y, float x)
int SDL_isupper(int x)
float SDL_fabsf(float x)
uint64_t Uint64
Definition: SDL_stdinc.h:239
int SDL_iscntrl(int x)
void SDL_free(void *mem)
void *(* SDL_calloc_func)(size_t nmemb, size_t size)
Definition: SDL_stdinc.h:445
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
Definition: SDL_stdinc.h:372
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:758
uint32_t Uint32
Definition: SDL_stdinc.h:226
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:446
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:360
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