SDL 3.0
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
32
33#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
34#include <inttypes.h>
35#endif
36#include <stdarg.h>
37#include <stdint.h>
38#include <wchar.h>
39
40#if !defined(alloca)
41# if defined(HAVE_ALLOCA_H)
42# include <alloca.h>
43# elif defined(__GNUC__)
44# define alloca __builtin_alloca
45# elif defined(_MSC_VER)
46# include <malloc.h>
47# define alloca _alloca
48# elif defined(__WATCOMC__)
49# include <malloc.h>
50# elif defined(__BORLANDC__)
51# include <malloc.h>
52# elif defined(__DMC__)
53# include <stdlib.h>
54# elif defined(__AIX__)
55#pragma alloca
56# elif defined(__MRC__)
57void *alloca(unsigned);
58# else
59char *alloca();
60# endif
61#endif
62
63#ifdef SIZE_MAX
64# define SDL_SIZE_MAX SIZE_MAX
65#else
66# define SDL_SIZE_MAX ((size_t) -1)
67#endif
68
69/**
70 * Check if the compiler supports a given builtin.
71 * Supported by virtually all clang versions and recent gcc. Use this
72 * instead of checking the clang version if possible.
73 */
74#ifdef __has_builtin
75#define SDL_HAS_BUILTIN(x) __has_builtin(x)
76#else
77#define SDL_HAS_BUILTIN(x) 0
78#endif
79
80/**
81 * The number of elements in an array.
82 */
83#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
84#define SDL_TABLESIZE(table) SDL_arraysize(table)
85
86/**
87 * Macro useful for building other macros with strings in them
88 *
89 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
90 */
91#define SDL_STRINGIFY_ARG(arg) #arg
92
93/**
94 * \name Cast operators
95 *
96 * Use proper C++ casts when compiled as C++ to be compatible with the option
97 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
98 */
99/* @{ */
100#ifdef __cplusplus
101#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
102#define SDL_static_cast(type, expression) static_cast<type>(expression)
103#define SDL_const_cast(type, expression) const_cast<type>(expression)
104#else
105#define SDL_reinterpret_cast(type, expression) ((type)(expression))
106#define SDL_static_cast(type, expression) ((type)(expression))
107#define SDL_const_cast(type, expression) ((type)(expression))
108#endif
109/* @} *//* Cast operators */
110
111/* Define a four character code as a Uint32 */
112#define SDL_FOURCC(A, B, C, D) \
113 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
114 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
115 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
116 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
117
118/**
119 * \name Basic data types
120 */
121/* @{ */
122
123#ifdef __CC_ARM
124/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
125#define SDL_FALSE 0
126#define SDL_TRUE 1
127typedef int SDL_bool;
128#else
129typedef enum
130{
132 SDL_TRUE = 1
134#endif
135
136/**
137 * \brief A signed 8-bit integer type.
138 */
139#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
140#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
141typedef int8_t Sint8;
142/**
143 * \brief An unsigned 8-bit integer type.
144 */
145#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
146#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
148/**
149 * \brief A signed 16-bit integer type.
150 */
151#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
152#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
154/**
155 * \brief An unsigned 16-bit integer type.
156 */
157#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
158#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
160/**
161 * \brief A signed 32-bit integer type.
162 */
163#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
164#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
166/**
167 * \brief An unsigned 32-bit integer type.
168 */
169#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
170#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
172
173/**
174 * \brief A signed 64-bit integer type.
175 */
176#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
177#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
179/**
180 * \brief An unsigned 64-bit integer type.
181 */
182#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
183#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
185
186/* @} *//* Basic data types */
187
188/**
189 * \name Floating-point constants
190 */
191/* @{ */
192
193#ifdef FLT_EPSILON
194#define SDL_FLT_EPSILON FLT_EPSILON
195#else
196#define SDL_FLT_EPSILON 1.1920928955078125e-07F /* 0x0.000002p0 */
197#endif
198
199/* @} *//* Floating-point constants */
200
201/* Make sure we have macros for printing width-based integers.
202 * <stdint.h> should define these but this is not true all platforms.
203 * (for example win32) */
204#ifndef SDL_PRIs64
205#ifdef PRIs64
206#define SDL_PRIs64 PRIs64
207#elif defined(__WIN32__) || defined(__GDK__)
208#define SDL_PRIs64 "I64d"
209#elif defined(__LP64__) && !defined(__APPLE__)
210#define SDL_PRIs64 "ld"
211#else
212#define SDL_PRIs64 "lld"
213#endif
214#endif
215#ifndef SDL_PRIu64
216#ifdef PRIu64
217#define SDL_PRIu64 PRIu64
218#elif defined(__WIN32__) || defined(__GDK__)
219#define SDL_PRIu64 "I64u"
220#elif defined(__LP64__) && !defined(__APPLE__)
221#define SDL_PRIu64 "lu"
222#else
223#define SDL_PRIu64 "llu"
224#endif
225#endif
226#ifndef SDL_PRIx64
227#ifdef PRIx64
228#define SDL_PRIx64 PRIx64
229#elif defined(__WIN32__) || defined(__GDK__)
230#define SDL_PRIx64 "I64x"
231#elif defined(__LP64__) && !defined(__APPLE__)
232#define SDL_PRIx64 "lx"
233#else
234#define SDL_PRIx64 "llx"
235#endif
236#endif
237#ifndef SDL_PRIX64
238#ifdef PRIX64
239#define SDL_PRIX64 PRIX64
240#elif defined(__WIN32__) || defined(__GDK__)
241#define SDL_PRIX64 "I64X"
242#elif defined(__LP64__) && !defined(__APPLE__)
243#define SDL_PRIX64 "lX"
244#else
245#define SDL_PRIX64 "llX"
246#endif
247#endif
248#ifndef SDL_PRIs32
249#ifdef PRId32
250#define SDL_PRIs32 PRId32
251#else
252#define SDL_PRIs32 "d"
253#endif
254#endif
255#ifndef SDL_PRIu32
256#ifdef PRIu32
257#define SDL_PRIu32 PRIu32
258#else
259#define SDL_PRIu32 "u"
260#endif
261#endif
262#ifndef SDL_PRIx32
263#ifdef PRIx32
264#define SDL_PRIx32 PRIx32
265#else
266#define SDL_PRIx32 "x"
267#endif
268#endif
269#ifndef SDL_PRIX32
270#ifdef PRIX32
271#define SDL_PRIX32 PRIX32
272#else
273#define SDL_PRIX32 "X"
274#endif
275#endif
276
277/* Annotations to help code analysis tools */
278#ifdef SDL_DISABLE_ANALYZE_MACROS
279#define SDL_IN_BYTECAP(x)
280#define SDL_INOUT_Z_CAP(x)
281#define SDL_OUT_Z_CAP(x)
282#define SDL_OUT_CAP(x)
283#define SDL_OUT_BYTECAP(x)
284#define SDL_OUT_Z_BYTECAP(x)
285#define SDL_PRINTF_FORMAT_STRING
286#define SDL_SCANF_FORMAT_STRING
287#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
288#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
289#else
290#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
291#include <sal.h>
292
293#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
294#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
295#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
296#define SDL_OUT_CAP(x) _Out_cap_(x)
297#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
298#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
299
300#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
301#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
302#else
303#define SDL_IN_BYTECAP(x)
304#define SDL_INOUT_Z_CAP(x)
305#define SDL_OUT_Z_CAP(x)
306#define SDL_OUT_CAP(x)
307#define SDL_OUT_BYTECAP(x)
308#define SDL_OUT_Z_BYTECAP(x)
309#define SDL_PRINTF_FORMAT_STRING
310#define SDL_SCANF_FORMAT_STRING
311#endif
312#if defined(__GNUC__)
313#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
314#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
315#else
316#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
317#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
318#endif
319#endif /* SDL_DISABLE_ANALYZE_MACROS */
320
321#ifndef SDL_COMPILE_TIME_ASSERT
322#if defined(__cplusplus)
323#if (__cplusplus >= 201103L)
324#define SDL_COMPILE_TIME_ASSERT(name, x) static_assert(x, #x)
325#endif
326#elif defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)
327#define SDL_COMPILE_TIME_ASSERT(name, x) _Static_assert(x, #x)
328#endif
329#endif /* !SDL_COMPILE_TIME_ASSERT */
330
331#ifndef SDL_COMPILE_TIME_ASSERT
332/* universal, but may trigger -Wunused-local-typedefs */
333#define SDL_COMPILE_TIME_ASSERT(name, x) \
334 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
335#endif
336
337/** \cond */
338#ifndef DOXYGEN_SHOULD_IGNORE_THIS
339SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
340SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
341SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
342SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
343SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
344SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
345SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
346SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
347#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
348/** \endcond */
349
350/* Check to make sure enums are the size of ints, for structure packing.
351 For both Watcom C/C++ and Borland C/C++ the compiler option that makes
352 enums having the size of an int must be enabled.
353 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
354*/
355
356/** \cond */
357#ifndef DOXYGEN_SHOULD_IGNORE_THIS
358#if !defined(__ANDROID__) && !defined(__VITA__) && !defined(__3DS__)
359 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
360typedef enum
361{
362 DUMMY_ENUM_VALUE
363} SDL_DUMMY_ENUM;
364
365SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
366#endif
367#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
368/** \endcond */
369
370#include <SDL3/SDL_begin_code.h>
371/* Set up for C function definitions, even when using C++ */
372#ifdef __cplusplus
373extern "C" {
374#endif
375
376#ifdef HAVE_ALLOCA
377#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
378#define SDL_stack_free(data)
379#else
380#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
381#define SDL_stack_free(data) SDL_free(data)
382#endif
383
384extern DECLSPEC SDL_MALLOC void *SDLCALL SDL_malloc(size_t size);
385extern DECLSPEC SDL_MALLOC SDL_ALLOC_SIZE2(1, 2) void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
386extern DECLSPEC SDL_ALLOC_SIZE(2) void *SDLCALL SDL_realloc(void *mem, size_t size);
387extern DECLSPEC void SDLCALL SDL_free(void *mem);
388
389typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
390typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
391typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
392typedef void (SDLCALL *SDL_free_func)(void *mem);
393
394/**
395 * Get the original set of SDL memory functions
396 *
397 * \since This function is available since SDL 3.0.0.
398 */
399extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
400 SDL_calloc_func *calloc_func,
401 SDL_realloc_func *realloc_func,
402 SDL_free_func *free_func);
403
404/**
405 * Get the current set of SDL memory functions
406 *
407 * \since This function is available since SDL 3.0.0.
408 */
409extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
410 SDL_calloc_func *calloc_func,
411 SDL_realloc_func *realloc_func,
412 SDL_free_func *free_func);
413
414/**
415 * Replace SDL's memory allocation functions with a custom set
416 *
417 * \since This function is available since SDL 3.0.0.
418 */
419extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
420 SDL_calloc_func calloc_func,
421 SDL_realloc_func realloc_func,
422 SDL_free_func free_func);
423
424/**
425 * Allocate memory aligned to a specific value
426 *
427 * If `alignment` is less than the size of `void *`, then it will be increased
428 * to match that.
429 *
430 * The returned memory address will be a multiple of the alignment value, and
431 * the amount of memory allocated will be a multiple of the alignment value.
432 *
433 * The memory returned by this function must be freed with SDL_aligned_free()
434 *
435 * \param alignment the alignment requested
436 * \param size the size to allocate
437 * \returns a pointer to the aligned memory
438 *
439 * \since This function is available since SDL 3.0.0.
440 *
441 * \sa SDL_aligned_free
442 */
443extern DECLSPEC SDL_MALLOC void *SDLCALL SDL_aligned_alloc(size_t alignment, size_t size);
444
445/**
446 * Free memory allocated by SDL_aligned_alloc()
447 *
448 * \since This function is available since SDL 3.0.0.
449 *
450 * \sa SDL_aligned_alloc
451 */
452extern DECLSPEC void SDLCALL SDL_aligned_free(void *mem);
453
454/**
455 * Get the number of outstanding (unfreed) allocations
456 *
457 * \since This function is available since SDL 3.0.0.
458 */
459extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
460
461extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
462extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
463
464extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
465extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
466
467extern DECLSPEC int SDLCALL SDL_abs(int x);
468
469/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
470#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
471#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
472#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
473
474extern DECLSPEC int SDLCALL SDL_isalpha(int x);
475extern DECLSPEC int SDLCALL SDL_isalnum(int x);
476extern DECLSPEC int SDLCALL SDL_isblank(int x);
477extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
478extern DECLSPEC int SDLCALL SDL_isdigit(int x);
479extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
480extern DECLSPEC int SDLCALL SDL_ispunct(int x);
481extern DECLSPEC int SDLCALL SDL_isspace(int x);
482extern DECLSPEC int SDLCALL SDL_isupper(int x);
483extern DECLSPEC int SDLCALL SDL_islower(int x);
484extern DECLSPEC int SDLCALL SDL_isprint(int x);
485extern DECLSPEC int SDLCALL SDL_isgraph(int x);
486extern DECLSPEC int SDLCALL SDL_toupper(int x);
487extern DECLSPEC int SDLCALL SDL_tolower(int x);
488
489extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
490extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
491
492extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
493extern DECLSPEC void *SDLCALL SDL_memset4(void *dst, Uint32 val, size_t dwords);
494
495#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
496#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
497#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
498
499#define SDL_copyp(dst, src) \
500 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
501 SDL_memcpy((dst), (src), sizeof (*(src)))
502
503
504
505extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
506
507extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
508extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
509
510extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
511extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
512extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
513extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
514extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
515
516extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
517extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
518extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
519extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
520
521extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
522extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
523extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
524extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
525extern DECLSPEC SDL_MALLOC char *SDLCALL SDL_strdup(const char *str);
526extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
527extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
528extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
529extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
530extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
531extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
532extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
533extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
534extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
535extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
536
537extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
538extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
539extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
540extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
541extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
542extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
543
544extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
545extern DECLSPEC double SDLCALL SDL_atof(const char *str);
546extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
547extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
548extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
549extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
550extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
551
552extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
553extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
554extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
555extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
556
557extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
558extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
559extern 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);
560extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
561extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
562extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, const char *fmt, va_list ap);
563
564#ifndef SDL_PI_D
565#define SDL_PI_D 3.141592653589793238462643383279502884 /**< pi (double) */
566#endif
567#ifndef SDL_PI_F
568#define SDL_PI_F 3.141592653589793238462643383279502884F /**< pi (float) */
569#endif
570
571/**
572 * Use this function to compute arc cosine of `x`.
573 *
574 * The definition of `y = acos(x)` is `x = cos(y)`.
575 *
576 * Domain: `-1 <= x <= 1`
577 *
578 * Range: `0 <= y <= Pi`
579 *
580 * \param x floating point value, in radians.
581 * \returns arc cosine of `x`.
582 *
583 * \since This function is available since SDL 3.0.0.
584 */
585extern DECLSPEC double SDLCALL SDL_acos(double x);
586extern DECLSPEC float SDLCALL SDL_acosf(float x);
587extern DECLSPEC double SDLCALL SDL_asin(double x);
588extern DECLSPEC float SDLCALL SDL_asinf(float x);
589extern DECLSPEC double SDLCALL SDL_atan(double x);
590extern DECLSPEC float SDLCALL SDL_atanf(float x);
591extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
592extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
593extern DECLSPEC double SDLCALL SDL_ceil(double x);
594extern DECLSPEC float SDLCALL SDL_ceilf(float x);
595extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
596extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
597extern DECLSPEC double SDLCALL SDL_cos(double x);
598extern DECLSPEC float SDLCALL SDL_cosf(float x);
599extern DECLSPEC double SDLCALL SDL_exp(double x);
600extern DECLSPEC float SDLCALL SDL_expf(float x);
601extern DECLSPEC double SDLCALL SDL_fabs(double x);
602extern DECLSPEC float SDLCALL SDL_fabsf(float x);
603extern DECLSPEC double SDLCALL SDL_floor(double x);
604extern DECLSPEC float SDLCALL SDL_floorf(float x);
605extern DECLSPEC double SDLCALL SDL_trunc(double x);
606extern DECLSPEC float SDLCALL SDL_truncf(float x);
607extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
608extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
609extern DECLSPEC double SDLCALL SDL_log(double x);
610extern DECLSPEC float SDLCALL SDL_logf(float x);
611extern DECLSPEC double SDLCALL SDL_log10(double x);
612extern DECLSPEC float SDLCALL SDL_log10f(float x);
613extern DECLSPEC double SDLCALL SDL_modf(double x, double *y);
614extern DECLSPEC float SDLCALL SDL_modff(float x, float *y);
615extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
616extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
617extern DECLSPEC double SDLCALL SDL_round(double x);
618extern DECLSPEC float SDLCALL SDL_roundf(float x);
619extern DECLSPEC long SDLCALL SDL_lround(double x);
620extern DECLSPEC long SDLCALL SDL_lroundf(float x);
621extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
622extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
623extern DECLSPEC double SDLCALL SDL_sin(double x);
624extern DECLSPEC float SDLCALL SDL_sinf(float x);
625extern DECLSPEC double SDLCALL SDL_sqrt(double x);
626extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
627extern DECLSPEC double SDLCALL SDL_tan(double x);
628extern DECLSPEC float SDLCALL SDL_tanf(float x);
629
630/* The SDL implementation of iconv() returns these error codes */
631#define SDL_ICONV_ERROR (size_t)-1
632#define SDL_ICONV_E2BIG (size_t)-2
633#define SDL_ICONV_EILSEQ (size_t)-3
634#define SDL_ICONV_EINVAL (size_t)-4
635
636/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
637typedef struct SDL_iconv_data_t *SDL_iconv_t;
638extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
639 const char *fromcode);
640extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
641extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
642 size_t * inbytesleft, char **outbuf,
643 size_t * outbytesleft);
644
645/**
646 * This function converts a string between encodings in one pass, returning a
647 * string that must be freed with SDL_free() or NULL on error.
648 *
649 * \since This function is available since SDL 3.0.0.
650 */
651extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
652 const char *fromcode,
653 const char *inbuf,
654 size_t inbytesleft);
655#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
656#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
657#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
658#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
659
660/* force builds using Clang's static analysis tools to use literal C runtime
661 here, since there are possibly tests that are ineffective otherwise. */
662#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
663
664/* The analyzer knows about strlcpy even when the system doesn't provide it */
665#ifndef HAVE_STRLCPY
666size_t strlcpy(char* dst, const char* src, size_t size);
667#endif
668
669/* The analyzer knows about strlcat even when the system doesn't provide it */
670#ifndef HAVE_STRLCAT
671size_t strlcat(char* dst, const char* src, size_t size);
672#endif
673
674#define SDL_malloc malloc
675#define SDL_calloc calloc
676#define SDL_realloc realloc
677#define SDL_free free
678#define SDL_memset memset
679#define SDL_memcpy memcpy
680#define SDL_memmove memmove
681#define SDL_memcmp memcmp
682#define SDL_strlcpy strlcpy
683#define SDL_strlcat strlcat
684#define SDL_strlen strlen
685#define SDL_wcslen wcslen
686#define SDL_wcslcpy wcslcpy
687#define SDL_wcslcat wcslcat
688#define SDL_strdup strdup
689#define SDL_wcsdup wcsdup
690#define SDL_strchr strchr
691#define SDL_strrchr strrchr
692#define SDL_strstr strstr
693#define SDL_wcsstr wcsstr
694#define SDL_strtokr strtok_r
695#define SDL_strcmp strcmp
696#define SDL_wcscmp wcscmp
697#define SDL_strncmp strncmp
698#define SDL_wcsncmp wcsncmp
699#define SDL_strcasecmp strcasecmp
700#define SDL_strncasecmp strncasecmp
701#define SDL_sscanf sscanf
702#define SDL_vsscanf vsscanf
703#define SDL_snprintf snprintf
704#define SDL_vsnprintf vsnprintf
705#endif
706
707SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
708{
709 return SDL_memcpy(dst, src, dwords * 4);
710}
711
712/**
713 * If a * b would overflow, return -1. Otherwise store a * b via ret
714 * and return 0.
715 *
716 * \since This function is available since SDL 2.24.0.
717 */
719 size_t b,
720 size_t *ret)
721{
722 if (a != 0 && b > SDL_SIZE_MAX / a) {
723 return -1;
724 }
725 *ret = a * b;
726 return 0;
727}
728
729#if SDL_HAS_BUILTIN(__builtin_mul_overflow)
730/* This needs to be wrapped in an inline rather than being a direct #define,
731 * because __builtin_mul_overflow() is type-generic, but we want to be
732 * consistent about interpreting a and b as size_t. */
733SDL_FORCE_INLINE int SDL_size_mul_overflow_builtin (size_t a,
734 size_t b,
735 size_t *ret)
736{
737 return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
738}
739#define SDL_size_mul_overflow(a, b, ret) (SDL_size_mul_overflow_builtin(a, b, ret))
740#endif
741
742/**
743 * If a + b would overflow, return -1. Otherwise store a + b via ret
744 * and return 0.
745 *
746 * \since This function is available since SDL 2.24.0.
747 */
749 size_t b,
750 size_t *ret)
751{
752 if (b > SDL_SIZE_MAX - a) {
753 return -1;
754 }
755 *ret = a + b;
756 return 0;
757}
758
759#if SDL_HAS_BUILTIN(__builtin_add_overflow)
760/* This needs to be wrapped in an inline rather than being a direct #define,
761 * the same as the call to __builtin_mul_overflow() above. */
762SDL_FORCE_INLINE int SDL_size_add_overflow_builtin (size_t a,
763 size_t b,
764 size_t *ret)
765{
766 return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
767}
768#define SDL_size_add_overflow(a, b, ret) (SDL_size_add_overflow_builtin(a, b, ret))
769#endif
770
771/* This is a generic function pointer which should be cast to the type you expect */
772#ifdef SDL_FUNCTION_POINTER_IS_VOID_POINTER
773typedef void *SDL_FunctionPointer;
774#else
776#endif
777
778/* Ends C function definitions when using C++ */
779#ifdef __cplusplus
780}
781#endif
782#include <SDL3/SDL_close_code.h>
783
784#endif /* SDL_stdinc_h_ */
#define SDL_FORCE_INLINE
#define SDL_MALLOC
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
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1567
typedef void(APIENTRYP PFNGLDRAWRANGEELEMENTSPROC)(GLenum mode
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1967
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1567
const GLubyte * c
GLuint GLfloat * val
GLenum src
GLuint64 key
GLuint GLfloat GLfloat GLfloat GLfloat GLfloat GLfloat GLfloat GLfloat s1
GLenum GLsizei len
GLboolean GLboolean GLboolean b
GLsizeiptr size
GLenum GLenum dst
GLuint const GLchar * name
GLdouble n
GLsizei const GLfloat * value
GLboolean GLboolean GLboolean GLboolean a
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)
int SDL_isspace(int x)
int SDL_isalnum(int x)
char * SDL_strlwr(char *str)
struct SDL_iconv_data_t * SDL_iconv_t
Definition: SDL_stdinc.h:637
int SDL_tolower(int x)
float SDL_modff(float x, float *y)
double SDL_modf(double x, double *y)
int SDL_abs(int x)
char * alloca()
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:147
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:178
void SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func, SDL_calloc_func *calloc_func, SDL_realloc_func *realloc_func, SDL_free_func *free_func)
SDL_MALLOC SDL_ALLOC_SIZE2(1, 2) void *SDL_calloc(size_t nmemb
void *(* SDL_malloc_func)(size_t size)
Definition: SDL_stdinc.h:389
#define SDL_OUT_BYTECAP(x)
Definition: SDL_stdinc.h:307
char * SDL_strrchr(const char *str, int c)
#define SDL_SIZE_MAX
Definition: SDL_stdinc.h:66
int SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen)
uint16_t Uint16
Definition: SDL_stdinc.h:159
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)
int SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len)
char * SDL_itoa(int value, char *str, int radix)
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:718
int SDL_strncmp(const char *str1, const char *str2, size_t maxlen)
char * SDL_strchr(const char *str, int c)
SDL_MALLOC void * SDL_aligned_alloc(size_t alignment, size_t size)
#define SDL_IN_BYTECAP(x)
Definition: SDL_stdinc.h:303
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:141
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)
void * SDL_memset4(void *dst, Uint32 val, size_t dwords)
#define SDL_SCANF_FORMAT_STRING
Definition: SDL_stdinc.h:310
char * SDL_strstr(const char *haystack, const char *needle)
int SDL_GetNumAllocations(void)
double SDL_exp(double x)
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)
SDL_ALLOC_SIZE(2) void *SDL_realloc(void *mem
size_t SDL_wcslen(const wchar_t *wstr)
int32_t Sint32
Definition: SDL_stdinc.h:165
int SDL_setenv(const char *name, const char *value, int overwrite)
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:304
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:130
@ SDL_TRUE
Definition: SDL_stdinc.h:132
@ SDL_FALSE
Definition: SDL_stdinc.h:131
Uint32 SDL_crc32(Uint32 crc, const void *data, size_t len)
int SDL_islower(int x)
void SDL_aligned_free(void *mem)
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:392
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:153
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:748
double SDL_cos(double x)
#define SDL_PRINTF_FORMAT_STRING
Definition: SDL_stdinc.h:309
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)
SDL_MALLOC void * SDL_malloc(size_t size)
#define SDL_PRINTF_VARARG_FUNC(fmtargnumber)
Definition: SDL_stdinc.h:316
#define SDL_COMPILE_TIME_ASSERT(name, x)
Definition: SDL_stdinc.h:333
float SDL_atan2f(float y, float x)
int SDL_isupper(int x)
float SDL_fabsf(float x)
uint64_t Uint64
Definition: SDL_stdinc.h:184
SDL_MALLOC char * SDL_strdup(const char *str)
int SDL_iscntrl(int x)
void SDL_free(void *mem)
void *(* SDL_calloc_func)(size_t nmemb, size_t size)
Definition: SDL_stdinc.h:390
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
Definition: SDL_stdinc.h:317
double SDL_atan2(double y, double x)
double SDL_log(double x)
void(* SDL_FunctionPointer)(void)
Definition: SDL_stdinc.h:775
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:707
uint32_t Uint32
Definition: SDL_stdinc.h:171
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:391
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:305
Uint64 SDL_strtoull(const char *str, char **endp, int base)
double SDL_trunc(double x)