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 __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# ifndef _USE_MATH_DEFINES
89# define _USE_MATH_DEFINES
90# endif
91# endif
92# include <math.h>
93#endif
94#ifdef HAVE_FLOAT_H
95# include <float.h>
96#endif
97#if defined(HAVE_ALLOCA) && !defined(alloca)
98# if defined(HAVE_ALLOCA_H)
99# include <alloca.h>
100# elif defined(__GNUC__)
101# define alloca __builtin_alloca
102# elif defined(_MSC_VER)
103# include <malloc.h>
104# define alloca _alloca
105# elif defined(__WATCOMC__)
106# include <malloc.h>
107# elif defined(__BORLANDC__)
108# include <malloc.h>
109# elif defined(__DMC__)
110# include <stdlib.h>
111# elif defined(__AIX__)
112#pragma alloca
113# elif defined(__MRC__)
114void *alloca(unsigned);
115# else
116char *alloca();
117# endif
118#endif
119
120#ifdef SIZE_MAX
121# define SDL_SIZE_MAX SIZE_MAX
122#else
123# define SDL_SIZE_MAX ((size_t) -1)
124#endif
125
126/**
127 * Check if the compiler supports a given builtin.
128 * Supported by virtually all clang versions and recent gcc. Use this
129 * instead of checking the clang version if possible.
130 */
131#ifdef __has_builtin
132#define _SDL_HAS_BUILTIN(x) __has_builtin(x)
133#else
134#define _SDL_HAS_BUILTIN(x) 0
135#endif
136
137/**
138 * The number of elements in an array.
139 */
140#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
141#define SDL_TABLESIZE(table) SDL_arraysize(table)
142
143/**
144 * Macro useful for building other macros with strings in them
145 *
146 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
147 */
148#define SDL_STRINGIFY_ARG(arg) #arg
149
150/**
151 * \name Cast operators
152 *
153 * Use proper C++ casts when compiled as C++ to be compatible with the option
154 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
155 */
156/* @{ */
157#ifdef __cplusplus
158#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
159#define SDL_static_cast(type, expression) static_cast<type>(expression)
160#define SDL_const_cast(type, expression) const_cast<type>(expression)
161#else
162#define SDL_reinterpret_cast(type, expression) ((type)(expression))
163#define SDL_static_cast(type, expression) ((type)(expression))
164#define SDL_const_cast(type, expression) ((type)(expression))
165#endif
166/* @} *//* Cast operators */
167
168/* Define a four character code as a Uint32 */
169#define SDL_FOURCC(A, B, C, D) \
170 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
171 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
172 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
173 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
174
175/**
176 * \name Basic data types
177 */
178/* @{ */
179
180#ifdef __CC_ARM
181/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
182#define SDL_FALSE 0
183#define SDL_TRUE 1
184typedef int SDL_bool;
185#else
186typedef enum
187{
189 SDL_TRUE = 1
191#endif
192
193/**
194 * \brief A signed 8-bit integer type.
195 */
196#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
197#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
198typedef int8_t Sint8;
199/**
200 * \brief An unsigned 8-bit integer type.
201 */
202#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
203#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
205/**
206 * \brief A signed 16-bit integer type.
207 */
208#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
209#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
211/**
212 * \brief An unsigned 16-bit integer type.
213 */
214#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
215#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
217/**
218 * \brief A signed 32-bit integer type.
219 */
220#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
221#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
223/**
224 * \brief An unsigned 32-bit integer type.
225 */
226#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
227#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
229
230/**
231 * \brief A signed 64-bit integer type.
232 */
233#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
234#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
236/**
237 * \brief An unsigned 64-bit integer type.
238 */
239#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
240#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
242
243/* @} *//* Basic data types */
244
245/**
246 * \name Floating-point constants
247 */
248/* @{ */
249
250#ifdef FLT_EPSILON
251#define SDL_FLT_EPSILON FLT_EPSILON
252#else
253#define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */
254#endif
255
256/* @} *//* Floating-point constants */
257
258/* Make sure we have macros for printing width-based integers.
259 * <stdint.h> should define these but this is not true all platforms.
260 * (for example win32) */
261#ifndef SDL_PRIs64
262#ifdef PRIs64
263#define SDL_PRIs64 PRIs64
264#elif defined(__WIN32__) || defined(__GDK__)
265#define SDL_PRIs64 "I64d"
266#elif defined(__LINUX__) && defined(__LP64__)
267#define SDL_PRIs64 "ld"
268#else
269#define SDL_PRIs64 "lld"
270#endif
271#endif
272#ifndef SDL_PRIu64
273#ifdef PRIu64
274#define SDL_PRIu64 PRIu64
275#elif defined(__WIN32__) || defined(__GDK__)
276#define SDL_PRIu64 "I64u"
277#elif defined(__LINUX__) && defined(__LP64__)
278#define SDL_PRIu64 "lu"
279#else
280#define SDL_PRIu64 "llu"
281#endif
282#endif
283#ifndef SDL_PRIx64
284#ifdef PRIx64
285#define SDL_PRIx64 PRIx64
286#elif defined(__WIN32__) || defined(__GDK__)
287#define SDL_PRIx64 "I64x"
288#elif defined(__LINUX__) && defined(__LP64__)
289#define SDL_PRIx64 "lx"
290#else
291#define SDL_PRIx64 "llx"
292#endif
293#endif
294#ifndef SDL_PRIX64
295#ifdef PRIX64
296#define SDL_PRIX64 PRIX64
297#elif defined(__WIN32__) || defined(__GDK__)
298#define SDL_PRIX64 "I64X"
299#elif defined(__LINUX__) && defined(__LP64__)
300#define SDL_PRIX64 "lX"
301#else
302#define SDL_PRIX64 "llX"
303#endif
304#endif
305#ifndef SDL_PRIs32
306#ifdef PRId32
307#define SDL_PRIs32 PRId32
308#else
309#define SDL_PRIs32 "d"
310#endif
311#endif
312#ifndef SDL_PRIu32
313#ifdef PRIu32
314#define SDL_PRIu32 PRIu32
315#else
316#define SDL_PRIu32 "u"
317#endif
318#endif
319#ifndef SDL_PRIx32
320#ifdef PRIx32
321#define SDL_PRIx32 PRIx32
322#else
323#define SDL_PRIx32 "x"
324#endif
325#endif
326#ifndef SDL_PRIX32
327#ifdef PRIX32
328#define SDL_PRIX32 PRIX32
329#else
330#define SDL_PRIX32 "X"
331#endif
332#endif
333
334/* Annotations to help code analysis tools */
335#ifdef SDL_DISABLE_ANALYZE_MACROS
336#define SDL_IN_BYTECAP(x)
337#define SDL_INOUT_Z_CAP(x)
338#define SDL_OUT_Z_CAP(x)
339#define SDL_OUT_CAP(x)
340#define SDL_OUT_BYTECAP(x)
341#define SDL_OUT_Z_BYTECAP(x)
342#define SDL_PRINTF_FORMAT_STRING
343#define SDL_SCANF_FORMAT_STRING
344#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
345#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
346#else
347#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
348#include <sal.h>
349
350#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
351#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
352#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
353#define SDL_OUT_CAP(x) _Out_cap_(x)
354#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
355#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
356
357#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
358#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
359#else
360#define SDL_IN_BYTECAP(x)
361#define SDL_INOUT_Z_CAP(x)
362#define SDL_OUT_Z_CAP(x)
363#define SDL_OUT_CAP(x)
364#define SDL_OUT_BYTECAP(x)
365#define SDL_OUT_Z_BYTECAP(x)
366#define SDL_PRINTF_FORMAT_STRING
367#define SDL_SCANF_FORMAT_STRING
368#endif
369#if defined(__GNUC__)
370#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
371#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
372#else
373#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
374#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
375#endif
376#endif /* SDL_DISABLE_ANALYZE_MACROS */
377
378#ifndef SDL_COMPILE_TIME_ASSERT
379#if defined(__cplusplus)
380#if (__cplusplus >= 201103L)
381#define SDL_COMPILE_TIME_ASSERT(name, x) static_assert(x, #x)
382#endif
383#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
384#define SDL_COMPILE_TIME_ASSERT(name, x) _Static_assert(x, #x)
385#endif
386#endif /* !SDL_COMPILE_TIME_ASSERT */
387
388#ifndef SDL_COMPILE_TIME_ASSERT
389/* universal, but may trigger -Wunused-local-typedefs */
390#define SDL_COMPILE_TIME_ASSERT(name, x) \
391 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
392#endif
393
394/** \cond */
395#ifndef DOXYGEN_SHOULD_IGNORE_THIS
396SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
397SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
398SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
399SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
400SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
401SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
402SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
403SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
404#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
405/** \endcond */
406
407/* Check to make sure enums are the size of ints, for structure packing.
408 For both Watcom C/C++ and Borland C/C++ the compiler option that makes
409 enums having the size of an int must be enabled.
410 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
411*/
412
413/** \cond */
414#ifndef DOXYGEN_SHOULD_IGNORE_THIS
415#if !defined(__ANDROID__) && !defined(__VITA__) && !defined(__3DS__)
416 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
417typedef enum
418{
419 DUMMY_ENUM_VALUE
420} SDL_DUMMY_ENUM;
421
422SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
423#endif
424#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
425/** \endcond */
426
427#include "begin_code.h"
428/* Set up for C function definitions, even when using C++ */
429#ifdef __cplusplus
430extern "C" {
431#endif
432
433#ifdef HAVE_ALLOCA
434#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
435#define SDL_stack_free(data)
436#else
437#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
438#define SDL_stack_free(data) SDL_free(data)
439#endif
440
441extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
442extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
443extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
444extern DECLSPEC void SDLCALL SDL_free(void *mem);
445
446typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
447typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
448typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
449typedef void (SDLCALL *SDL_free_func)(void *mem);
450
451/**
452 * Get the original set of SDL memory functions
453 *
454 * \since This function is available since SDL 2.24.0.
455 */
456extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
457 SDL_calloc_func *calloc_func,
458 SDL_realloc_func *realloc_func,
459 SDL_free_func *free_func);
460
461/**
462 * Get the current set of SDL memory functions
463 *
464 * \since This function is available since SDL 2.0.7.
465 */
466extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
467 SDL_calloc_func *calloc_func,
468 SDL_realloc_func *realloc_func,
469 SDL_free_func *free_func);
470
471/**
472 * Replace SDL's memory allocation functions with a custom set
473 *
474 * \since This function is available since SDL 2.0.7.
475 */
476extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
477 SDL_calloc_func calloc_func,
478 SDL_realloc_func realloc_func,
479 SDL_free_func free_func);
480
481/**
482 * Get the number of outstanding (unfreed) allocations
483 *
484 * \since This function is available since SDL 2.0.7.
485 */
486extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
487
488extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
489extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
490
491extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
492extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
493
494extern DECLSPEC int SDLCALL SDL_abs(int x);
495
496/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
497#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
498#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
499#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
500
501extern DECLSPEC int SDLCALL SDL_isalpha(int x);
502extern DECLSPEC int SDLCALL SDL_isalnum(int x);
503extern DECLSPEC int SDLCALL SDL_isblank(int x);
504extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
505extern DECLSPEC int SDLCALL SDL_isdigit(int x);
506extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
507extern DECLSPEC int SDLCALL SDL_ispunct(int x);
508extern DECLSPEC int SDLCALL SDL_isspace(int x);
509extern DECLSPEC int SDLCALL SDL_isupper(int x);
510extern DECLSPEC int SDLCALL SDL_islower(int x);
511extern DECLSPEC int SDLCALL SDL_isprint(int x);
512extern DECLSPEC int SDLCALL SDL_isgraph(int x);
513extern DECLSPEC int SDLCALL SDL_toupper(int x);
514extern DECLSPEC int SDLCALL SDL_tolower(int x);
515
516extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
517extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
518
519extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
520
521#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
522#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
523#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
524
525#define SDL_copyp(dst, src) \
526 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
527 SDL_memcpy((dst), (src), sizeof (*(src)))
528
529
530/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
531SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
532{
533#ifdef __APPLE__
534 memset_pattern4(dst, &val, dwords * 4);
535#elif defined(__GNUC__) && defined(__i386__)
536 int u0, u1, u2;
537 __asm__ __volatile__ (
538 "cld \n\t"
539 "rep ; stosl \n\t"
540 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
541 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
542 : "memory"
543 );
544#else
545 size_t _n = (dwords + 3) / 4;
546 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
547 Uint32 _val = (val);
548 if (dwords == 0) {
549 return;
550 }
551 switch (dwords % 4) {
552 case 0: do { *_p++ = _val; SDL_FALLTHROUGH;
553 case 3: *_p++ = _val; SDL_FALLTHROUGH;
554 case 2: *_p++ = _val; SDL_FALLTHROUGH;
555 case 1: *_p++ = _val;
556 } while ( --_n );
557 }
558#endif
559}
560
561extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
562
563extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
564extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
565
566extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
567extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
568extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
569extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
570extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
571
572extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
573extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
574extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
575extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
576
577extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
578extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
579extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
580extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
581extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
582extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
583extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
584extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
585extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
586extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
587extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
588extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
589extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
590extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
591extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
592
593extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
594extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
595extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
596extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
597extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
598extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
599
600extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
601extern DECLSPEC double SDLCALL SDL_atof(const char *str);
602extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
603extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
604extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
605extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
606extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
607
608extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
609extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
610extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
611extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
612
613extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
614extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
615extern 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);
616extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
617extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
618extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, const char *fmt, va_list ap);
619
620#ifndef HAVE_M_PI
621#ifndef M_PI
622#define M_PI 3.14159265358979323846264338327950288 /**< pi */
623#endif
624#endif
625
626/**
627 * Use this function to compute arc cosine of `x`.
628 *
629 * The definition of `y = acos(x)` is `x = cos(y)`.
630 *
631 * Domain: `-1 <= x <= 1`
632 *
633 * Range: `0 <= y <= Pi`
634 *
635 * \param x floating point value, in radians.
636 * \returns arc cosine of `x`.
637 *
638 * \since This function is available since SDL 2.0.2.
639 */
640extern DECLSPEC double SDLCALL SDL_acos(double x);
641extern DECLSPEC float SDLCALL SDL_acosf(float x);
642extern DECLSPEC double SDLCALL SDL_asin(double x);
643extern DECLSPEC float SDLCALL SDL_asinf(float x);
644extern DECLSPEC double SDLCALL SDL_atan(double x);
645extern DECLSPEC float SDLCALL SDL_atanf(float x);
646extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
647extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
648extern DECLSPEC double SDLCALL SDL_ceil(double x);
649extern DECLSPEC float SDLCALL SDL_ceilf(float x);
650extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
651extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
652extern DECLSPEC double SDLCALL SDL_cos(double x);
653extern DECLSPEC float SDLCALL SDL_cosf(float x);
654extern DECLSPEC double SDLCALL SDL_exp(double x);
655extern DECLSPEC float SDLCALL SDL_expf(float x);
656extern DECLSPEC double SDLCALL SDL_fabs(double x);
657extern DECLSPEC float SDLCALL SDL_fabsf(float x);
658extern DECLSPEC double SDLCALL SDL_floor(double x);
659extern DECLSPEC float SDLCALL SDL_floorf(float x);
660extern DECLSPEC double SDLCALL SDL_trunc(double x);
661extern DECLSPEC float SDLCALL SDL_truncf(float x);
662extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
663extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
664extern DECLSPEC double SDLCALL SDL_log(double x);
665extern DECLSPEC float SDLCALL SDL_logf(float x);
666extern DECLSPEC double SDLCALL SDL_log10(double x);
667extern DECLSPEC float SDLCALL SDL_log10f(float x);
668extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
669extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
670extern DECLSPEC double SDLCALL SDL_round(double x);
671extern DECLSPEC float SDLCALL SDL_roundf(float x);
672extern DECLSPEC long SDLCALL SDL_lround(double x);
673extern DECLSPEC long SDLCALL SDL_lroundf(float x);
674extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
675extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
676extern DECLSPEC double SDLCALL SDL_sin(double x);
677extern DECLSPEC float SDLCALL SDL_sinf(float x);
678extern DECLSPEC double SDLCALL SDL_sqrt(double x);
679extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
680extern DECLSPEC double SDLCALL SDL_tan(double x);
681extern DECLSPEC float SDLCALL SDL_tanf(float x);
682
683/* The SDL implementation of iconv() returns these error codes */
684#define SDL_ICONV_ERROR (size_t)-1
685#define SDL_ICONV_E2BIG (size_t)-2
686#define SDL_ICONV_EILSEQ (size_t)-3
687#define SDL_ICONV_EINVAL (size_t)-4
688
689/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
690typedef struct _SDL_iconv_t *SDL_iconv_t;
691extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
692 const char *fromcode);
693extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
694extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
695 size_t * inbytesleft, char **outbuf,
696 size_t * outbytesleft);
697
698/**
699 * This function converts a string between encodings in one pass, returning a
700 * string that must be freed with SDL_free() or NULL on error.
701 *
702 * \since This function is available since SDL 2.0.0.
703 */
704extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
705 const char *fromcode,
706 const char *inbuf,
707 size_t inbytesleft);
708#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
709#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
710#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
711#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
712
713/* force builds using Clang's static analysis tools to use literal C runtime
714 here, since there are possibly tests that are ineffective otherwise. */
715#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
716
717/* The analyzer knows about strlcpy even when the system doesn't provide it */
718#ifndef HAVE_STRLCPY
719size_t strlcpy(char* dst, const char* src, size_t size);
720#endif
721
722/* The analyzer knows about strlcat even when the system doesn't provide it */
723#ifndef HAVE_STRLCAT
724size_t strlcat(char* dst, const char* src, size_t size);
725#endif
726
727#define SDL_malloc malloc
728#define SDL_calloc calloc
729#define SDL_realloc realloc
730#define SDL_free free
731#define SDL_memset memset
732#define SDL_memcpy memcpy
733#define SDL_memmove memmove
734#define SDL_memcmp memcmp
735#define SDL_strlcpy strlcpy
736#define SDL_strlcat strlcat
737#define SDL_strlen strlen
738#define SDL_wcslen wcslen
739#define SDL_wcslcpy wcslcpy
740#define SDL_wcslcat wcslcat
741#define SDL_strdup strdup
742#define SDL_wcsdup wcsdup
743#define SDL_strchr strchr
744#define SDL_strrchr strrchr
745#define SDL_strstr strstr
746#define SDL_wcsstr wcsstr
747#define SDL_strtokr strtok_r
748#define SDL_strcmp strcmp
749#define SDL_wcscmp wcscmp
750#define SDL_strncmp strncmp
751#define SDL_wcsncmp wcsncmp
752#define SDL_strcasecmp strcasecmp
753#define SDL_strncasecmp strncasecmp
754#define SDL_sscanf sscanf
755#define SDL_vsscanf vsscanf
756#define SDL_snprintf snprintf
757#define SDL_vsnprintf vsnprintf
758#endif
759
760SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
761{
762 return SDL_memcpy(dst, src, dwords * 4);
763}
764
765/**
766 * If a * b would overflow, return -1. Otherwise store a * b via ret
767 * and return 0.
768 *
769 * \since This function is available since SDL 2.24.0.
770 */
772 size_t b,
773 size_t *ret)
774{
775 if (a != 0 && b > SDL_SIZE_MAX / a) {
776 return -1;
777 }
778 *ret = a * b;
779 return 0;
780}
781
782#if _SDL_HAS_BUILTIN(__builtin_mul_overflow)
783/* This needs to be wrapped in an inline rather than being a direct #define,
784 * because __builtin_mul_overflow() is type-generic, but we want to be
785 * consistent about interpreting a and b as size_t. */
786SDL_FORCE_INLINE int _SDL_size_mul_overflow_builtin (size_t a,
787 size_t b,
788 size_t *ret)
789{
790 return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
791}
792#define SDL_size_mul_overflow(a, b, ret) (_SDL_size_mul_overflow_builtin(a, b, ret))
793#endif
794
795/**
796 * If a + b would overflow, return -1. Otherwise store a + b via ret
797 * and return 0.
798 *
799 * \since This function is available since SDL 2.24.0.
800 */
802 size_t b,
803 size_t *ret)
804{
805 if (b > SDL_SIZE_MAX - a) {
806 return -1;
807 }
808 *ret = a + b;
809 return 0;
810}
811
812#if _SDL_HAS_BUILTIN(__builtin_add_overflow)
813/* This needs to be wrapped in an inline rather than being a direct #define,
814 * the same as the call to __builtin_mul_overflow() above. */
815SDL_FORCE_INLINE int _SDL_size_add_overflow_builtin (size_t a,
816 size_t b,
817 size_t *ret)
818{
819 return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
820}
821#define SDL_size_add_overflow(a, b, ret) (_SDL_size_add_overflow_builtin(a, b, ret))
822#endif
823
824/* Ends C function definitions when using C++ */
825#ifdef __cplusplus
826}
827#endif
828#include "close_code.h"
829
830#endif /* SDL_stdinc_h_ */
831
832/* 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:531
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:204
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:235
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:446
#define SDL_OUT_BYTECAP(x)
Definition: SDL_stdinc.h:364
char * SDL_strrchr(const char *str, int c)
#define SDL_SIZE_MAX
Definition: SDL_stdinc.h:123
int SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen)
uint16_t Uint16
Definition: SDL_stdinc.h:216
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:690
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:771
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:360
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:198
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:367
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:163
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:222
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:361
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:187
@ SDL_TRUE
Definition: SDL_stdinc.h:189
@ SDL_FALSE
Definition: SDL_stdinc.h:188
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:449
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:210
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:801
double SDL_cos(double x)
#define SDL_PRINTF_FORMAT_STRING
Definition: SDL_stdinc.h:366
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:373
#define SDL_COMPILE_TIME_ASSERT(name, x)
Definition: SDL_stdinc.h:390
float SDL_atan2f(float y, float x)
int SDL_isupper(int x)
float SDL_fabsf(float x)
uint64_t Uint64
Definition: SDL_stdinc.h:241
int SDL_iscntrl(int x)
void SDL_free(void *mem)
void *(* SDL_calloc_func)(size_t nmemb, size_t size)
Definition: SDL_stdinc.h:447
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
Definition: SDL_stdinc.h:374
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:760
uint32_t Uint32
Definition: SDL_stdinc.h:228
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:448
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:362
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