SDL 2.0
SDL_stdinc.h File Reference
#include "SDL_config.h"
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdarg.h>
#include <string.h>
#include <strings.h>
#include <wchar.h>
#include <inttypes.h>
#include <ctype.h>
#include <math.h>
#include <float.h>
#include <alloca.h>
#include "begin_code.h"
#include "close_code.h"
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Macros

#define SDL_SIZE_MAX   ((size_t) -1)
 
#define _SDL_HAS_BUILTIN(x)   0
 
#define SDL_arraysize(array)   (sizeof(array)/sizeof(array[0]))
 
#define SDL_TABLESIZE(table)   SDL_arraysize(table)
 
#define SDL_STRINGIFY_ARG(arg)   #arg
 
Cast operators

Use proper C++ casts when compiled as C++ to be compatible with the option -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).

#define SDL_reinterpret_cast(type, expression)   ((type)(expression))
 
#define SDL_static_cast(type, expression)   ((type)(expression))
 
#define SDL_const_cast(type, expression)   ((type)(expression))
 
#define SDL_FOURCC(A, B, C, D)
 

Basic data types

#define SDL_MAX_SINT8   ((Sint8)0x7F) /* 127 */
 A signed 8-bit integer type.
 
#define SDL_MIN_SINT8   ((Sint8)(~0x7F)) /* -128 */
 
#define SDL_MAX_UINT8   ((Uint8)0xFF) /* 255 */
 An unsigned 8-bit integer type.
 
#define SDL_MIN_UINT8   ((Uint8)0x00) /* 0 */
 
#define SDL_MAX_SINT16   ((Sint16)0x7FFF) /* 32767 */
 A signed 16-bit integer type.
 
#define SDL_MIN_SINT16   ((Sint16)(~0x7FFF)) /* -32768 */
 
#define SDL_MAX_UINT16   ((Uint16)0xFFFF) /* 65535 */
 An unsigned 16-bit integer type.
 
#define SDL_MIN_UINT16   ((Uint16)0x0000) /* 0 */
 
#define SDL_MAX_SINT32   ((Sint32)0x7FFFFFFF) /* 2147483647 */
 A signed 32-bit integer type.
 
#define SDL_MIN_SINT32   ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
 
#define SDL_MAX_UINT32   ((Uint32)0xFFFFFFFFu) /* 4294967295 */
 An unsigned 32-bit integer type.
 
#define SDL_MIN_UINT32   ((Uint32)0x00000000) /* 0 */
 
#define SDL_MAX_SINT64   ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
 A signed 64-bit integer type.
 
#define SDL_MIN_SINT64   ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
 
#define SDL_MAX_UINT64   ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
 An unsigned 64-bit integer type.
 
#define SDL_MIN_UINT64   ((Uint64)(0x0000000000000000ull)) /* 0 */
 
enum  SDL_bool {
  SDL_FALSE = 0 ,
  SDL_TRUE = 1
}
 
typedef int8_t Sint8
 
typedef uint8_t Uint8
 
typedef int16_t Sint16
 
typedef uint16_t Uint16
 
typedef int32_t Sint32
 
typedef uint32_t Uint32
 
typedef int64_t Sint64
 
typedef uint64_t Uint64
 

Floating-point constants

#define SDL_FLT_EPSILON   1.1920928955078125e-07F /* 0x0.000002p0 */
 
#define SDL_PRIs64   "I64d"
 
#define SDL_PRIu64   "I64u"
 
#define SDL_PRIx64   "I64x"
 
#define SDL_PRIX64   "I64X"
 
#define SDL_PRIs32   "d"
 
#define SDL_PRIu32   "u"
 
#define SDL_PRIx32   "x"
 
#define SDL_PRIX32   "X"
 
#define SDL_IN_BYTECAP(x)
 
#define SDL_INOUT_Z_CAP(x)
 
#define SDL_OUT_Z_CAP(x)
 
#define SDL_OUT_CAP(x)
 
#define SDL_OUT_BYTECAP(x)
 
#define SDL_OUT_Z_BYTECAP(x)
 
#define SDL_PRINTF_FORMAT_STRING
 
#define SDL_SCANF_FORMAT_STRING
 
#define SDL_PRINTF_VARARG_FUNC(fmtargnumber)
 
#define SDL_PRINTF_VARARG_FUNCV(fmtargnumber)
 
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
 
#define SDL_SCANF_VARARG_FUNCV(fmtargnumber)
 
#define SDL_COMPILE_TIME_ASSERT(name, x)    typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
 
#define SDL_stack_alloc(type, count)   (type*)alloca(sizeof(type)*(count))
 
#define SDL_stack_free(data)
 
#define SDL_min(x, y)   (((x) < (y)) ? (x) : (y))
 
#define SDL_max(x, y)   (((x) > (y)) ? (x) : (y))
 
#define SDL_clamp(x, a, b)   (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
 
#define SDL_zero(x)   SDL_memset(&(x), 0, sizeof((x)))
 
#define SDL_zerop(x)   SDL_memset((x), 0, sizeof(*(x)))
 
#define SDL_zeroa(x)   SDL_memset((x), 0, sizeof((x)))
 
#define SDL_copyp(dst, src)
 
#define SDL_ICONV_ERROR   (size_t)-1
 
#define SDL_ICONV_E2BIG   (size_t)-2
 
#define SDL_ICONV_EILSEQ   (size_t)-3
 
#define SDL_ICONV_EINVAL   (size_t)-4
 
#define SDL_iconv_utf8_locale(S)   SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
 
#define SDL_iconv_utf8_ucs2(S)   (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
 
#define SDL_iconv_utf8_ucs4(S)   (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
 
#define SDL_iconv_wchar_utf8(S)   SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
 
typedef void *(* SDL_malloc_func) (size_t size)
 
typedef void *(* SDL_calloc_func) (size_t nmemb, size_t size)
 
typedef void *(* SDL_realloc_func) (void *mem, size_t size)
 
typedef void(* SDL_free_func) (void *mem)
 
typedef struct _SDL_iconv_t * SDL_iconv_t
 
void * SDL_malloc (size_t size)
 
void * SDL_calloc (size_t nmemb, size_t size)
 
void * SDL_realloc (void *mem, size_t size)
 
void SDL_free (void *mem)
 
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_GetMemoryFunctions (SDL_malloc_func *malloc_func, SDL_calloc_func *calloc_func, SDL_realloc_func *realloc_func, SDL_free_func *free_func)
 
int SDL_SetMemoryFunctions (SDL_malloc_func malloc_func, SDL_calloc_func calloc_func, SDL_realloc_func realloc_func, SDL_free_func free_func)
 
int SDL_GetNumAllocations (void)
 
char * SDL_getenv (const char *name)
 
int SDL_setenv (const char *name, const char *value, int overwrite)
 
void SDL_qsort (void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
 
void * SDL_bsearch (const void *key, const void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
 
int SDL_abs (int x)
 
int SDL_isalpha (int x)
 
int SDL_isalnum (int x)
 
int SDL_isblank (int x)
 
int SDL_iscntrl (int x)
 
int SDL_isdigit (int x)
 
int SDL_isxdigit (int x)
 
int SDL_ispunct (int x)
 
int SDL_isspace (int x)
 
int SDL_isupper (int x)
 
int SDL_islower (int x)
 
int SDL_isprint (int x)
 
int SDL_isgraph (int x)
 
int SDL_toupper (int x)
 
int SDL_tolower (int x)
 
Uint16 SDL_crc16 (Uint16 crc, const void *data, size_t len)
 
Uint32 SDL_crc32 (Uint32 crc, const void *data, size_t len)
 
void * SDL_memset (SDL_OUT_BYTECAP(len) void *dst, int c, size_t len)
 
SDL_FORCE_INLINE void SDL_memset4 (void *dst, Uint32 val, size_t dwords)
 
void * SDL_memcpy (SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
 
void * SDL_memmove (SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
 
int SDL_memcmp (const void *s1, const void *s2, size_t len)
 
size_t SDL_wcslen (const wchar_t *wstr)
 
size_t SDL_wcslcpy (SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
 
size_t SDL_wcslcat (SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
 
wchar_t * SDL_wcsdup (const wchar_t *wstr)
 
wchar_t * SDL_wcsstr (const wchar_t *haystack, const wchar_t *needle)
 
int SDL_wcscmp (const wchar_t *str1, const wchar_t *str2)
 
int SDL_wcsncmp (const wchar_t *str1, const wchar_t *str2, size_t maxlen)
 
int SDL_wcscasecmp (const wchar_t *str1, const wchar_t *str2)
 
int SDL_wcsncasecmp (const wchar_t *str1, const wchar_t *str2, size_t len)
 
size_t SDL_strlen (const char *str)
 
size_t SDL_strlcpy (SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
 
size_t SDL_utf8strlcpy (SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes)
 
size_t SDL_strlcat (SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
 
char * SDL_strdup (const char *str)
 
char * SDL_strrev (char *str)
 
char * SDL_strupr (char *str)
 
char * SDL_strlwr (char *str)
 
char * SDL_strchr (const char *str, int c)
 
char * SDL_strrchr (const char *str, int c)
 
char * SDL_strstr (const char *haystack, const char *needle)
 
char * SDL_strcasestr (const char *haystack, const char *needle)
 
char * SDL_strtokr (char *s1, const char *s2, char **saveptr)
 
size_t SDL_utf8strlen (const char *str)
 
size_t SDL_utf8strnlen (const char *str, size_t bytes)
 
char * SDL_itoa (int value, char *str, int radix)
 
char * SDL_uitoa (unsigned int value, char *str, int radix)
 
char * SDL_ltoa (long value, char *str, int radix)
 
char * SDL_ultoa (unsigned long value, char *str, int radix)
 
char * SDL_lltoa (Sint64 value, char *str, int radix)
 
char * SDL_ulltoa (Uint64 value, char *str, int radix)
 
int SDL_atoi (const char *str)
 
double SDL_atof (const char *str)
 
long SDL_strtol (const char *str, char **endp, int base)
 
unsigned long SDL_strtoul (const char *str, char **endp, int base)
 
Sint64 SDL_strtoll (const char *str, char **endp, int base)
 
Uint64 SDL_strtoull (const char *str, char **endp, int base)
 
double SDL_strtod (const char *str, char **endp)
 
int SDL_strcmp (const char *str1, const char *str2)
 
int SDL_strncmp (const char *str1, const char *str2, size_t maxlen)
 
int SDL_strcasecmp (const char *str1, const char *str2)
 
int SDL_strncasecmp (const char *str1, const char *str2, size_t len)
 
int SDL_sscanf (const char *text, SDL_SCANF_FORMAT_STRING const char *fmt,...) SDL_SCANF_VARARG_FUNC(2)
 
int SDL_vsscanf (const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2)
 
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)
 
int SDL_vsnprintf (SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(3)
 
int SDL_asprintf (char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt,...) SDL_PRINTF_VARARG_FUNC(2)
 
int SDL_vasprintf (char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2)
 
double SDL_acos (double x)
 
float SDL_acosf (float x)
 
double SDL_asin (double x)
 
float SDL_asinf (float x)
 
double SDL_atan (double x)
 
float SDL_atanf (float x)
 
double SDL_atan2 (double y, double x)
 
float SDL_atan2f (float y, float x)
 
double SDL_ceil (double x)
 
float SDL_ceilf (float x)
 
double SDL_copysign (double x, double y)
 
float SDL_copysignf (float x, float y)
 
double SDL_cos (double x)
 
float SDL_cosf (float x)
 
double SDL_exp (double x)
 
float SDL_expf (float x)
 
double SDL_fabs (double x)
 
float SDL_fabsf (float x)
 
double SDL_floor (double x)
 
float SDL_floorf (float x)
 
double SDL_trunc (double x)
 
float SDL_truncf (float x)
 
double SDL_fmod (double x, double y)
 
float SDL_fmodf (float x, float y)
 
double SDL_log (double x)
 
float SDL_logf (float x)
 
double SDL_log10 (double x)
 
float SDL_log10f (float x)
 
double SDL_pow (double x, double y)
 
float SDL_powf (float x, float y)
 
double SDL_round (double x)
 
float SDL_roundf (float x)
 
long SDL_lround (double x)
 
long SDL_lroundf (float x)
 
double SDL_scalbn (double x, int n)
 
float SDL_scalbnf (float x, int n)
 
double SDL_sin (double x)
 
float SDL_sinf (float x)
 
double SDL_sqrt (double x)
 
float SDL_sqrtf (float x)
 
double SDL_tan (double x)
 
float SDL_tanf (float x)
 
SDL_iconv_t SDL_iconv_open (const char *tocode, const char *fromcode)
 
int SDL_iconv_close (SDL_iconv_t cd)
 
size_t SDL_iconv (SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
 
char * SDL_iconv_string (const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft)
 
SDL_FORCE_INLINE void * SDL_memcpy4 (SDL_OUT_BYTECAP(dwords *4) void *dst, SDL_IN_BYTECAP(dwords *4) const void *src, size_t dwords)
 
SDL_FORCE_INLINE int SDL_size_mul_overflow (size_t a, size_t b, size_t *ret)
 
SDL_FORCE_INLINE int SDL_size_add_overflow (size_t a, size_t b, size_t *ret)
 

Detailed Description

This is a general header that includes C language support.

Definition in file SDL_stdinc.h.

Macro Definition Documentation

◆ _SDL_HAS_BUILTIN

#define _SDL_HAS_BUILTIN (   x)    0

Check if the compiler supports a given builtin. Supported by virtually all clang versions and recent gcc. Use this instead of checking the clang version if possible.

Definition at line 128 of file SDL_stdinc.h.

◆ SDL_arraysize

#define SDL_arraysize (   array)    (sizeof(array)/sizeof(array[0]))

The number of elements in an array.

Definition at line 134 of file SDL_stdinc.h.

◆ SDL_clamp

#define SDL_clamp (   x,
  a,
 
)    (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))

Definition at line 502 of file SDL_stdinc.h.

◆ SDL_COMPILE_TIME_ASSERT

#define SDL_COMPILE_TIME_ASSERT (   name,
 
)     typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]

Definition at line 393 of file SDL_stdinc.h.

421{
422 DUMMY_ENUM_VALUE
423} SDL_DUMMY_ENUM;
424
425SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
426#endif
427#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
428/** \endcond */
429
430#include "begin_code.h"
431/* Set up for C function definitions, even when using C++ */
432#ifdef __cplusplus
433extern "C" {
434#endif
435
436#ifdef HAVE_ALLOCA
437#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
438#define SDL_stack_free(data)
439#else
440#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
441#define SDL_stack_free(data) SDL_free(data)
442#endif
443
444extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
445extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
446extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
447extern DECLSPEC void SDLCALL SDL_free(void *mem);
448
449typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
450typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
451typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
452typedef void (SDLCALL *SDL_free_func)(void *mem);
453
454/**
455 * Get the original set of SDL memory functions
456 *
457 * \since This function is available since SDL 2.24.0.
458 */
459extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
460 SDL_calloc_func *calloc_func,
461 SDL_realloc_func *realloc_func,
462 SDL_free_func *free_func);
463
464/**
465 * Get the current set of SDL memory functions
466 *
467 * \since This function is available since SDL 2.0.7.
468 */
469extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
470 SDL_calloc_func *calloc_func,
471 SDL_realloc_func *realloc_func,
472 SDL_free_func *free_func);
473
474/**
475 * Replace SDL's memory allocation functions with a custom set
476 *
477 * \since This function is available since SDL 2.0.7.
478 */
479extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
480 SDL_calloc_func calloc_func,
481 SDL_realloc_func realloc_func,
482 SDL_free_func free_func);
483
484/**
485 * Get the number of outstanding (unfreed) allocations
486 *
487 * \since This function is available since SDL 2.0.7.
488 */
489extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
490
491extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
492extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
493
494extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
495extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int (SDLCALL *compare) (const void *, const void *));
496
497extern DECLSPEC int SDLCALL SDL_abs(int x);
498
499/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
500#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
501#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
502#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
503
504extern DECLSPEC int SDLCALL SDL_isalpha(int x);
505extern DECLSPEC int SDLCALL SDL_isalnum(int x);
506extern DECLSPEC int SDLCALL SDL_isblank(int x);
507extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
508extern DECLSPEC int SDLCALL SDL_isdigit(int x);
509extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
510extern DECLSPEC int SDLCALL SDL_ispunct(int x);
511extern DECLSPEC int SDLCALL SDL_isspace(int x);
512extern DECLSPEC int SDLCALL SDL_isupper(int x);
513extern DECLSPEC int SDLCALL SDL_islower(int x);
514extern DECLSPEC int SDLCALL SDL_isprint(int x);
515extern DECLSPEC int SDLCALL SDL_isgraph(int x);
516extern DECLSPEC int SDLCALL SDL_toupper(int x);
517extern DECLSPEC int SDLCALL SDL_tolower(int x);
518
519extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
520extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
521
522extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
523
524#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
525#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
526#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
527
528#define SDL_copyp(dst, src) \
529 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
530 SDL_memcpy((dst), (src), sizeof (*(src)))
531
532
533/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
534SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
535{
536#if defined(__GNUC__) && defined(__i386__)
537 int u0, u1, u2;
538 __asm__ __volatile__ (
539 "cld \n\t"
540 "rep ; stosl \n\t"
541 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
542 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
543 : "memory"
544 );
545#else
546 size_t _n = (dwords + 3) / 4;
547 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
548 Uint32 _val = (val);
549 if (dwords == 0) {
550 return;
551 }
552 switch (dwords % 4) {
553 case 0: do { *_p++ = _val; SDL_FALLTHROUGH;
554 case 3: *_p++ = _val; SDL_FALLTHROUGH;
555 case 2: *_p++ = _val; SDL_FALLTHROUGH;
556 case 1: *_p++ = _val;
557 } while ( --_n );
558 }
559#endif
560}
561
562extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
563
564extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
565extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
566
567extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
568extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
569extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
570extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
571extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
572
573extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
574extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
575extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
576extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
577
578extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
579extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
580extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
581extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
582extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
583extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
584extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
585extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
586extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
587extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
588extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
589extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
590extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
591extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
592extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
593
594extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
595extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
596extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
597extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
598extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
599extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
600
601extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
602extern DECLSPEC double SDLCALL SDL_atof(const char *str);
603extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
604extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
605extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
606extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
607extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
608
609extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
610extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
611extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
612extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
613
614extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
615extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2);
616extern 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);
617extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(3);
618extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
619extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2);
620
621#ifndef HAVE_M_PI
622#ifndef M_PI
623#define M_PI 3.14159265358979323846264338327950288 /**< pi */
624#endif
625#endif
626
627/**
628 * Use this function to compute arc cosine of `x`.
629 *
630 * The definition of `y = acos(x)` is `x = cos(y)`.
631 *
632 * Domain: `-1 <= x <= 1`
633 *
634 * Range: `0 <= y <= Pi`
635 *
636 * \param x floating point value, in radians.
637 * \returns arc cosine of `x`.
638 *
639 * \since This function is available since SDL 2.0.2.
640 */
641extern DECLSPEC double SDLCALL SDL_acos(double x);
642extern DECLSPEC float SDLCALL SDL_acosf(float x);
643extern DECLSPEC double SDLCALL SDL_asin(double x);
644extern DECLSPEC float SDLCALL SDL_asinf(float x);
645extern DECLSPEC double SDLCALL SDL_atan(double x);
646extern DECLSPEC float SDLCALL SDL_atanf(float x);
647extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
648extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
649extern DECLSPEC double SDLCALL SDL_ceil(double x);
650extern DECLSPEC float SDLCALL SDL_ceilf(float x);
651extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
652extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
653extern DECLSPEC double SDLCALL SDL_cos(double x);
654extern DECLSPEC float SDLCALL SDL_cosf(float x);
655extern DECLSPEC double SDLCALL SDL_exp(double x);
656extern DECLSPEC float SDLCALL SDL_expf(float x);
657extern DECLSPEC double SDLCALL SDL_fabs(double x);
658extern DECLSPEC float SDLCALL SDL_fabsf(float x);
659extern DECLSPEC double SDLCALL SDL_floor(double x);
660extern DECLSPEC float SDLCALL SDL_floorf(float x);
661extern DECLSPEC double SDLCALL SDL_trunc(double x);
662extern DECLSPEC float SDLCALL SDL_truncf(float x);
663extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
664extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
665extern DECLSPEC double SDLCALL SDL_log(double x);
666extern DECLSPEC float SDLCALL SDL_logf(float x);
667extern DECLSPEC double SDLCALL SDL_log10(double x);
668extern DECLSPEC float SDLCALL SDL_log10f(float x);
669extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
670extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
671extern DECLSPEC double SDLCALL SDL_round(double x);
672extern DECLSPEC float SDLCALL SDL_roundf(float x);
673extern DECLSPEC long SDLCALL SDL_lround(double x);
674extern DECLSPEC long SDLCALL SDL_lroundf(float x);
675extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
676extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
677extern DECLSPEC double SDLCALL SDL_sin(double x);
678extern DECLSPEC float SDLCALL SDL_sinf(float x);
679extern DECLSPEC double SDLCALL SDL_sqrt(double x);
680extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
681extern DECLSPEC double SDLCALL SDL_tan(double x);
682extern DECLSPEC float SDLCALL SDL_tanf(float x);
683
684/* The SDL implementation of iconv() returns these error codes */
685#define SDL_ICONV_ERROR (size_t)-1
686#define SDL_ICONV_E2BIG (size_t)-2
687#define SDL_ICONV_EILSEQ (size_t)-3
688#define SDL_ICONV_EINVAL (size_t)-4
689
690/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
691typedef struct _SDL_iconv_t *SDL_iconv_t;
692extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
693 const char *fromcode);
694extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
695extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
696 size_t * inbytesleft, char **outbuf,
697 size_t * outbytesleft);
698
699/**
700 * This function converts a buffer or string between encodings in one pass,
701 * returning a string that must be freed with SDL_free() or NULL on error.
702 *
703 * \since This function is available since SDL 2.0.0.
704 */
705extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
706 const char *fromcode,
707 const char *inbuf,
708 size_t inbytesleft);
709#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
710#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
711#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
712#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
713
714/* force builds using Clang's static analysis tools to use literal C runtime
715 here, since there are possibly tests that are ineffective otherwise. */
716#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
717
718/* The analyzer knows about strlcpy even when the system doesn't provide it */
719#ifndef HAVE_STRLCPY
720size_t strlcpy(char* dst, const char* src, size_t size);
721#endif
722
723/* The analyzer knows about strlcat even when the system doesn't provide it */
724#ifndef HAVE_STRLCAT
725size_t strlcat(char* dst, const char* src, size_t size);
726#endif
727
728#ifndef HAVE_WCSLCPY
729size_t wcslcpy(wchar_t *dst, const wchar_t *src, size_t size);
730#endif
731
732#ifndef HAVE_WCSLCAT
733size_t wcslcat(wchar_t *dst, const wchar_t *src, size_t size);
734#endif
735
736/* Starting LLVM 16, the analyser errors out if these functions do not have
737 their prototype defined (clang-diagnostic-implicit-function-declaration) */
738#include <stdlib.h>
739#include <string.h>
740#include <stdio.h>
741
742#define SDL_malloc malloc
743#define SDL_calloc calloc
744#define SDL_realloc realloc
745#define SDL_free free
746#define SDL_memset memset
747#define SDL_memcpy memcpy
748#define SDL_memmove memmove
749#define SDL_memcmp memcmp
750#define SDL_strlcpy strlcpy
751#define SDL_strlcat strlcat
752#define SDL_strlen strlen
753#define SDL_wcslen wcslen
754#define SDL_wcslcpy wcslcpy
755#define SDL_wcslcat wcslcat
756#define SDL_strdup strdup
757#define SDL_wcsdup wcsdup
758#define SDL_strchr strchr
759#define SDL_strrchr strrchr
760#define SDL_strstr strstr
761#define SDL_wcsstr wcsstr
762#define SDL_strtokr strtok_r
763#define SDL_strcmp strcmp
764#define SDL_wcscmp wcscmp
765#define SDL_strncmp strncmp
766#define SDL_wcsncmp wcsncmp
767#define SDL_strcasecmp strcasecmp
768#define SDL_strncasecmp strncasecmp
769#define SDL_sscanf sscanf
770#define SDL_vsscanf vsscanf
771#define SDL_snprintf snprintf
772#define SDL_vsnprintf vsnprintf
773#endif
774
775SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
776{
777 return SDL_memcpy(dst, src, dwords * 4);
778}
779
780/**
781 * If a * b would overflow, return -1. Otherwise store a * b via ret
782 * and return 0.
783 *
784 * \since This function is available since SDL 2.24.0.
785 */
787 size_t b,
788 size_t *ret)
789{
790 if (a != 0 && b > SDL_SIZE_MAX / a) {
791 return -1;
792 }
793 *ret = a * b;
794 return 0;
795}
796
797#if _SDL_HAS_BUILTIN(__builtin_mul_overflow)
798/* This needs to be wrapped in an inline rather than being a direct #define,
799 * because __builtin_mul_overflow() is type-generic, but we want to be
800 * consistent about interpreting a and b as size_t. */
801SDL_FORCE_INLINE int _SDL_size_mul_overflow_builtin (size_t a,
802 size_t b,
803 size_t *ret)
804{
805 return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
806}
807#define SDL_size_mul_overflow(a, b, ret) (_SDL_size_mul_overflow_builtin(a, b, ret))
808#endif
809
810/**
811 * If a + b would overflow, return -1. Otherwise store a + b via ret
812 * and return 0.
813 *
814 * \since This function is available since SDL 2.24.0.
815 */
817 size_t b,
818 size_t *ret)
819{
820 if (b > SDL_SIZE_MAX - a) {
821 return -1;
822 }
823 *ret = a + b;
824 return 0;
825}
826
827#if _SDL_HAS_BUILTIN(__builtin_add_overflow)
828/* This needs to be wrapped in an inline rather than being a direct #define,
829 * the same as the call to __builtin_mul_overflow() above. */
830SDL_FORCE_INLINE int _SDL_size_add_overflow_builtin (size_t a,
831 size_t b,
832 size_t *ret)
833{
834 return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
835}
836#define SDL_size_add_overflow(a, b, ret) (_SDL_size_add_overflow_builtin(a, b, ret))
837#endif
838
839/* Ends C function definitions when using C++ */
840#ifdef __cplusplus
841}
842#endif
843#include "close_code.h"
844
845#endif /* SDL_stdinc_h_ */
846
847/* vi: set ts=4 sw=4 expandtab: */
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:534
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)
char * SDL_ltoa(long value, char *str, int radix)
int SDL_isxdigit(int x)
float SDL_ceilf(float x)
int64_t Sint64
Definition SDL_stdinc.h:229
void SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func, SDL_calloc_func *calloc_func, SDL_realloc_func *realloc_func, SDL_free_func *free_func)
void *(* SDL_malloc_func)(size_t size)
Definition SDL_stdinc.h:449
#define SDL_OUT_BYTECAP(x)
Definition SDL_stdinc.h:360
char * SDL_strrchr(const char *str, int c)
#define SDL_SIZE_MAX
Definition SDL_stdinc.h:117
int SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen)
uint16_t Uint16
Definition SDL_stdinc.h:210
int SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt,...) SDL_SCANF_VARARG_FUNC(2)
void SDL_qsort(void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
float SDL_atanf(float x)
int SDL_isprint(int x)
#define SDL_PRINTF_VARARG_FUNCV(fmtargnumber)
Definition SDL_stdinc.h:372
struct _SDL_iconv_t * SDL_iconv_t
Definition SDL_stdinc.h:691
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:786
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:356
void * SDL_malloc(size_t size)
int SDL_vasprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2)
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)
wchar_t * SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle)
float SDL_sinf(float x)
int SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(3)
#define SDL_SCANF_VARARG_FUNCV(fmtargnumber)
Definition SDL_stdinc.h:374
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:363
char * SDL_strstr(const char *haystack, const char *needle)
int SDL_GetNumAllocations(void)
double SDL_exp(double x)
#define SDL_static_cast(type, expression)
Definition SDL_stdinc.h:157
size_t SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
double SDL_atan(double x)
float SDL_sqrtf(float x)
size_t SDL_wcslen(const wchar_t *wstr)
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:357
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)
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:452
int SDL_memcmp(const void *s1, const void *s2, size_t len)
char * SDL_ulltoa(Uint64 value, char *str, int radix)
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)
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:816
double SDL_cos(double x)
#define SDL_PRINTF_FORMAT_STRING
Definition SDL_stdinc.h:362
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:393
float SDL_atan2f(float y, float x)
int SDL_isupper(int x)
float SDL_fabsf(float x)
uint64_t Uint64
Definition SDL_stdinc.h:235
int SDL_iscntrl(int x)
void SDL_free(void *mem)
void *(* SDL_calloc_func)(size_t nmemb, size_t size)
Definition SDL_stdinc.h:450
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:373
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:775
uint32_t Uint32
Definition SDL_stdinc.h:222
float SDL_powf(float x, float y)
size_t SDL_strlen(const char *str)
Uint16 SDL_crc16(Uint16 crc, const void *data, size_t len)
int SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt,...) SDL_PRINTF_VARARG_FUNC(3)
float SDL_cosf(float x)
void * SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, int(*compare)(const void *, const void *))
size_t SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
double SDL_copysign(double x, double y)
int SDL_vsscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2)
void *(* SDL_realloc_func)(void *mem, size_t size)
Definition SDL_stdinc.h:451
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:358
Uint64 SDL_strtoull(const char *str, char **endp, int base)
double SDL_trunc(double x)
#define SDL_FALLTHROUGH
Definition begin_code.h:185
#define SDL_FORCE_INLINE
Definition begin_code.h:145

◆ SDL_const_cast

#define SDL_const_cast (   type,
  expression 
)    ((type)(expression))

Definition at line 158 of file SDL_stdinc.h.

◆ SDL_copyp

#define SDL_copyp (   dst,
  src 
)
Value:
{ SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
SDL_memcpy((dst), (src), sizeof (*(src)))
#define SDL_copyp(dst, src)
Definition SDL_stdinc.h:528

Definition at line 528 of file SDL_stdinc.h.

529 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
530 SDL_memcpy((dst), (src), sizeof (*(src)))

◆ SDL_FLT_EPSILON

#define SDL_FLT_EPSILON   1.1920928955078125e-07F /* 0x0.000002p0 */

Definition at line 247 of file SDL_stdinc.h.

◆ SDL_FOURCC

#define SDL_FOURCC (   A,
  B,
  C,
 
)
Value:

Definition at line 163 of file SDL_stdinc.h.

◆ SDL_ICONV_E2BIG

#define SDL_ICONV_E2BIG   (size_t)-2

Definition at line 686 of file SDL_stdinc.h.

◆ SDL_ICONV_EILSEQ

#define SDL_ICONV_EILSEQ   (size_t)-3

Definition at line 687 of file SDL_stdinc.h.

◆ SDL_ICONV_EINVAL

#define SDL_ICONV_EINVAL   (size_t)-4

Definition at line 688 of file SDL_stdinc.h.

◆ SDL_ICONV_ERROR

#define SDL_ICONV_ERROR   (size_t)-1

Definition at line 685 of file SDL_stdinc.h.

◆ SDL_iconv_utf8_locale

#define SDL_iconv_utf8_locale (   S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)

Definition at line 709 of file SDL_stdinc.h.

◆ SDL_iconv_utf8_ucs2

#define SDL_iconv_utf8_ucs2 (   S)    (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)

Definition at line 710 of file SDL_stdinc.h.

◆ SDL_iconv_utf8_ucs4

#define SDL_iconv_utf8_ucs4 (   S)    (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)

Definition at line 711 of file SDL_stdinc.h.

◆ SDL_iconv_wchar_utf8

#define SDL_iconv_wchar_utf8 (   S)    SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))

Definition at line 712 of file SDL_stdinc.h.

◆ SDL_IN_BYTECAP

#define SDL_IN_BYTECAP (   x)

Definition at line 356 of file SDL_stdinc.h.

◆ SDL_INOUT_Z_CAP

#define SDL_INOUT_Z_CAP (   x)

Definition at line 357 of file SDL_stdinc.h.

◆ SDL_max

#define SDL_max (   x,
 
)    (((x) > (y)) ? (x) : (y))

Definition at line 501 of file SDL_stdinc.h.

◆ SDL_MAX_SINT16

#define SDL_MAX_SINT16   ((Sint16)0x7FFF) /* 32767 */

A signed 16-bit integer type.

Definition at line 202 of file SDL_stdinc.h.

◆ SDL_MAX_SINT32

#define SDL_MAX_SINT32   ((Sint32)0x7FFFFFFF) /* 2147483647 */

A signed 32-bit integer type.

Definition at line 214 of file SDL_stdinc.h.

◆ SDL_MAX_SINT64

#define SDL_MAX_SINT64   ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */

A signed 64-bit integer type.

Definition at line 227 of file SDL_stdinc.h.

◆ SDL_MAX_SINT8

#define SDL_MAX_SINT8   ((Sint8)0x7F) /* 127 */

A signed 8-bit integer type.

Definition at line 190 of file SDL_stdinc.h.

◆ SDL_MAX_UINT16

#define SDL_MAX_UINT16   ((Uint16)0xFFFF) /* 65535 */

An unsigned 16-bit integer type.

Definition at line 208 of file SDL_stdinc.h.

◆ SDL_MAX_UINT32

#define SDL_MAX_UINT32   ((Uint32)0xFFFFFFFFu) /* 4294967295 */

An unsigned 32-bit integer type.

Definition at line 220 of file SDL_stdinc.h.

◆ SDL_MAX_UINT64

#define SDL_MAX_UINT64   ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */

An unsigned 64-bit integer type.

Definition at line 233 of file SDL_stdinc.h.

◆ SDL_MAX_UINT8

#define SDL_MAX_UINT8   ((Uint8)0xFF) /* 255 */

An unsigned 8-bit integer type.

Definition at line 196 of file SDL_stdinc.h.

◆ SDL_min

#define SDL_min (   x,
 
)    (((x) < (y)) ? (x) : (y))

Definition at line 500 of file SDL_stdinc.h.

◆ SDL_MIN_SINT16

#define SDL_MIN_SINT16   ((Sint16)(~0x7FFF)) /* -32768 */

Definition at line 203 of file SDL_stdinc.h.

◆ SDL_MIN_SINT32

#define SDL_MIN_SINT32   ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */

Definition at line 215 of file SDL_stdinc.h.

◆ SDL_MIN_SINT64

#define SDL_MIN_SINT64   ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */

Definition at line 228 of file SDL_stdinc.h.

◆ SDL_MIN_SINT8

#define SDL_MIN_SINT8   ((Sint8)(~0x7F)) /* -128 */

Definition at line 191 of file SDL_stdinc.h.

◆ SDL_MIN_UINT16

#define SDL_MIN_UINT16   ((Uint16)0x0000) /* 0 */

Definition at line 209 of file SDL_stdinc.h.

◆ SDL_MIN_UINT32

#define SDL_MIN_UINT32   ((Uint32)0x00000000) /* 0 */

Definition at line 221 of file SDL_stdinc.h.

◆ SDL_MIN_UINT64

#define SDL_MIN_UINT64   ((Uint64)(0x0000000000000000ull)) /* 0 */

Definition at line 234 of file SDL_stdinc.h.

◆ SDL_MIN_UINT8

#define SDL_MIN_UINT8   ((Uint8)0x00) /* 0 */

Definition at line 197 of file SDL_stdinc.h.

◆ SDL_OUT_BYTECAP

#define SDL_OUT_BYTECAP (   x)

Definition at line 360 of file SDL_stdinc.h.

◆ SDL_OUT_CAP

#define SDL_OUT_CAP (   x)

Definition at line 359 of file SDL_stdinc.h.

◆ SDL_OUT_Z_BYTECAP

#define SDL_OUT_Z_BYTECAP (   x)

Definition at line 361 of file SDL_stdinc.h.

◆ SDL_OUT_Z_CAP

#define SDL_OUT_Z_CAP (   x)

Definition at line 358 of file SDL_stdinc.h.

◆ SDL_PRINTF_FORMAT_STRING

#define SDL_PRINTF_FORMAT_STRING

Definition at line 362 of file SDL_stdinc.h.

◆ SDL_PRINTF_VARARG_FUNC

#define SDL_PRINTF_VARARG_FUNC (   fmtargnumber)

Definition at line 371 of file SDL_stdinc.h.

◆ SDL_PRINTF_VARARG_FUNCV

#define SDL_PRINTF_VARARG_FUNCV (   fmtargnumber)

Definition at line 372 of file SDL_stdinc.h.

◆ SDL_PRIs32

#define SDL_PRIs32   "d"

Definition at line 303 of file SDL_stdinc.h.

◆ SDL_PRIs64

#define SDL_PRIs64   "I64d"

Definition at line 257 of file SDL_stdinc.h.

◆ SDL_PRIu32

#define SDL_PRIu32   "u"

Definition at line 310 of file SDL_stdinc.h.

◆ SDL_PRIu64

#define SDL_PRIu64   "I64u"

Definition at line 268 of file SDL_stdinc.h.

◆ SDL_PRIx32

#define SDL_PRIx32   "x"

Definition at line 317 of file SDL_stdinc.h.

◆ SDL_PRIX32

#define SDL_PRIX32   "X"

Definition at line 324 of file SDL_stdinc.h.

◆ SDL_PRIx64

#define SDL_PRIx64   "I64x"

Definition at line 279 of file SDL_stdinc.h.

◆ SDL_PRIX64

#define SDL_PRIX64   "I64X"

Definition at line 290 of file SDL_stdinc.h.

◆ SDL_reinterpret_cast

#define SDL_reinterpret_cast (   type,
  expression 
)    ((type)(expression))

Definition at line 156 of file SDL_stdinc.h.

◆ SDL_SCANF_FORMAT_STRING

#define SDL_SCANF_FORMAT_STRING

Definition at line 363 of file SDL_stdinc.h.

◆ SDL_SCANF_VARARG_FUNC

#define SDL_SCANF_VARARG_FUNC (   fmtargnumber)

Definition at line 373 of file SDL_stdinc.h.

◆ SDL_SCANF_VARARG_FUNCV

#define SDL_SCANF_VARARG_FUNCV (   fmtargnumber)

Definition at line 374 of file SDL_stdinc.h.

◆ SDL_SIZE_MAX

#define SDL_SIZE_MAX   ((size_t) -1)

Definition at line 117 of file SDL_stdinc.h.

◆ SDL_stack_alloc

#define SDL_stack_alloc (   type,
  count 
)    (type*)alloca(sizeof(type)*(count))

Definition at line 437 of file SDL_stdinc.h.

◆ SDL_stack_free

#define SDL_stack_free (   data)

Definition at line 438 of file SDL_stdinc.h.

◆ SDL_static_cast

#define SDL_static_cast (   type,
  expression 
)    ((type)(expression))

Definition at line 157 of file SDL_stdinc.h.

◆ SDL_STRINGIFY_ARG

#define SDL_STRINGIFY_ARG (   arg)    #arg

Macro useful for building other macros with strings in them

e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(FUNCTION) ": " X "\n")

Definition at line 142 of file SDL_stdinc.h.

◆ SDL_TABLESIZE

#define SDL_TABLESIZE (   table)    SDL_arraysize(table)

Definition at line 135 of file SDL_stdinc.h.

◆ SDL_zero

#define SDL_zero (   x)    SDL_memset(&(x), 0, sizeof((x)))

Definition at line 524 of file SDL_stdinc.h.

◆ SDL_zeroa

#define SDL_zeroa (   x)    SDL_memset((x), 0, sizeof((x)))

Definition at line 526 of file SDL_stdinc.h.

◆ SDL_zerop

#define SDL_zerop (   x)    SDL_memset((x), 0, sizeof(*(x)))

Definition at line 525 of file SDL_stdinc.h.

Typedef Documentation

◆ SDL_calloc_func

typedef void *(* SDL_calloc_func) (size_t nmemb, size_t size)

Definition at line 450 of file SDL_stdinc.h.

◆ SDL_free_func

typedef void(* SDL_free_func) (void *mem)

Definition at line 452 of file SDL_stdinc.h.

◆ SDL_iconv_t

typedef struct _SDL_iconv_t* SDL_iconv_t

Definition at line 691 of file SDL_stdinc.h.

◆ SDL_malloc_func

typedef void *(* SDL_malloc_func) (size_t size)

Definition at line 449 of file SDL_stdinc.h.

◆ SDL_realloc_func

typedef void *(* SDL_realloc_func) (void *mem, size_t size)

Definition at line 451 of file SDL_stdinc.h.

◆ Sint16

typedef int16_t Sint16

Definition at line 204 of file SDL_stdinc.h.

◆ Sint32

typedef int32_t Sint32

Definition at line 216 of file SDL_stdinc.h.

◆ Sint64

typedef int64_t Sint64

Definition at line 229 of file SDL_stdinc.h.

◆ Sint8

typedef int8_t Sint8

Definition at line 192 of file SDL_stdinc.h.

◆ Uint16

typedef uint16_t Uint16

Definition at line 210 of file SDL_stdinc.h.

◆ Uint32

typedef uint32_t Uint32

Definition at line 222 of file SDL_stdinc.h.

◆ Uint64

typedef uint64_t Uint64

Definition at line 235 of file SDL_stdinc.h.

◆ Uint8

typedef uint8_t Uint8

Definition at line 198 of file SDL_stdinc.h.

Enumeration Type Documentation

◆ SDL_bool

enum SDL_bool
Enumerator
SDL_FALSE 
SDL_TRUE 

Definition at line 180 of file SDL_stdinc.h.

181{
182 SDL_FALSE = 0,
183 SDL_TRUE = 1
184} SDL_bool;
SDL_bool
Definition SDL_stdinc.h:181
@ SDL_TRUE
Definition SDL_stdinc.h:183
@ SDL_FALSE
Definition SDL_stdinc.h:182

Function Documentation

◆ SDL_abs()

int SDL_abs ( int  x)
extern

◆ SDL_acos()

double SDL_acos ( double  x)
extern

Use this function to compute arc cosine of x.

The definition of y = acos(x) is x = cos(y).

Domain: -1 <= x <= 1

Range: 0 <= y <= Pi

Parameters
xfloating point value, in radians.
Returns
arc cosine of x.
Since
This function is available since SDL 2.0.2.

◆ SDL_acosf()

float SDL_acosf ( float  x)
extern

◆ SDL_asin()

double SDL_asin ( double  x)
extern

◆ SDL_asinf()

float SDL_asinf ( float  x)
extern

◆ SDL_asprintf()

int SDL_asprintf ( char **  strp,
SDL_PRINTF_FORMAT_STRING const char *  fmt,
  ... 
)
extern

◆ SDL_atan()

double SDL_atan ( double  x)
extern

◆ SDL_atan2()

double SDL_atan2 ( double  y,
double  x 
)
extern

◆ SDL_atan2f()

float SDL_atan2f ( float  y,
float  x 
)
extern

◆ SDL_atanf()

float SDL_atanf ( float  x)
extern

◆ SDL_atof()

double SDL_atof ( const char *  str)
extern

◆ SDL_atoi()

int SDL_atoi ( const char *  str)
extern

◆ SDL_bsearch()

void * SDL_bsearch ( const void *  key,
const void *  base,
size_t  nmemb,
size_t  size,
int(*)(const void *, const void *)  compare 
)
extern

◆ SDL_calloc()

void * SDL_calloc ( size_t  nmemb,
size_t  size 
)
extern

◆ SDL_ceil()

double SDL_ceil ( double  x)
extern

◆ SDL_ceilf()

float SDL_ceilf ( float  x)
extern

◆ SDL_copysign()

double SDL_copysign ( double  x,
double  y 
)
extern

◆ SDL_copysignf()

float SDL_copysignf ( float  x,
float  y 
)
extern

◆ SDL_cos()

double SDL_cos ( double  x)
extern

◆ SDL_cosf()

float SDL_cosf ( float  x)
extern

◆ SDL_crc16()

Uint16 SDL_crc16 ( Uint16  crc,
const void *  data,
size_t  len 
)
extern

◆ SDL_crc32()

Uint32 SDL_crc32 ( Uint32  crc,
const void *  data,
size_t  len 
)
extern

◆ SDL_exp()

double SDL_exp ( double  x)
extern

◆ SDL_expf()

float SDL_expf ( float  x)
extern

◆ SDL_fabs()

double SDL_fabs ( double  x)
extern

◆ SDL_fabsf()

float SDL_fabsf ( float  x)
extern

Referenced by SDL_FRectEqualsEpsilon().

◆ SDL_floor()

double SDL_floor ( double  x)
extern

◆ SDL_floorf()

float SDL_floorf ( float  x)
extern

◆ SDL_fmod()

double SDL_fmod ( double  x,
double  y 
)
extern

◆ SDL_fmodf()

float SDL_fmodf ( float  x,
float  y 
)
extern

◆ SDL_free()

void SDL_free ( void *  mem)
extern

◆ SDL_getenv()

char * SDL_getenv ( const char *  name)
extern

◆ SDL_GetMemoryFunctions()

void SDL_GetMemoryFunctions ( SDL_malloc_func malloc_func,
SDL_calloc_func calloc_func,
SDL_realloc_func realloc_func,
SDL_free_func free_func 
)
extern

Get the current set of SDL memory functions

Since
This function is available since SDL 2.0.7.

◆ SDL_GetNumAllocations()

int SDL_GetNumAllocations ( void  )
extern

Get the number of outstanding (unfreed) allocations

Since
This function is available since SDL 2.0.7.

◆ SDL_GetOriginalMemoryFunctions()

void SDL_GetOriginalMemoryFunctions ( SDL_malloc_func malloc_func,
SDL_calloc_func calloc_func,
SDL_realloc_func realloc_func,
SDL_free_func free_func 
)
extern

Get the original set of SDL memory functions

Since
This function is available since SDL 2.24.0.

◆ SDL_iconv()

size_t SDL_iconv ( SDL_iconv_t  cd,
const char **  inbuf,
size_t *  inbytesleft,
char **  outbuf,
size_t *  outbytesleft 
)
extern

◆ SDL_iconv_close()

int SDL_iconv_close ( SDL_iconv_t  cd)
extern

◆ SDL_iconv_open()

SDL_iconv_t SDL_iconv_open ( const char *  tocode,
const char *  fromcode 
)
extern

◆ SDL_iconv_string()

char * SDL_iconv_string ( const char *  tocode,
const char *  fromcode,
const char *  inbuf,
size_t  inbytesleft 
)
extern

This function converts a buffer or string between encodings in one pass, returning a string that must be freed with SDL_free() or NULL on error.

Since
This function is available since SDL 2.0.0.

◆ SDL_isalnum()

int SDL_isalnum ( int  x)
extern

◆ SDL_isalpha()

int SDL_isalpha ( int  x)
extern

◆ SDL_isblank()

int SDL_isblank ( int  x)
extern

◆ SDL_iscntrl()

int SDL_iscntrl ( int  x)
extern

◆ SDL_isdigit()

int SDL_isdigit ( int  x)
extern

◆ SDL_isgraph()

int SDL_isgraph ( int  x)
extern

◆ SDL_islower()

int SDL_islower ( int  x)
extern

◆ SDL_isprint()

int SDL_isprint ( int  x)
extern

◆ SDL_ispunct()

int SDL_ispunct ( int  x)
extern

◆ SDL_isspace()

int SDL_isspace ( int  x)
extern

◆ SDL_isupper()

int SDL_isupper ( int  x)
extern

◆ SDL_isxdigit()

int SDL_isxdigit ( int  x)
extern

◆ SDL_itoa()

char * SDL_itoa ( int  value,
char *  str,
int  radix 
)
extern

◆ SDL_lltoa()

char * SDL_lltoa ( Sint64  value,
char *  str,
int  radix 
)
extern

◆ SDL_log()

double SDL_log ( double  x)
extern

◆ SDL_log10()

double SDL_log10 ( double  x)
extern

◆ SDL_log10f()

float SDL_log10f ( float  x)
extern

◆ SDL_logf()

float SDL_logf ( float  x)
extern

◆ SDL_lround()

long SDL_lround ( double  x)
extern

◆ SDL_lroundf()

long SDL_lroundf ( float  x)
extern

◆ SDL_ltoa()

char * SDL_ltoa ( long  value,
char *  str,
int  radix 
)
extern

◆ SDL_malloc()

void * SDL_malloc ( size_t  size)
extern

◆ SDL_memcmp()

int SDL_memcmp ( const void *  s1,
const void *  s2,
size_t  len 
)
extern

◆ SDL_memcpy()

void * SDL_memcpy ( SDL_OUT_BYTECAP(len) void *  dst,
SDL_IN_BYTECAP(len) const void *  src,
size_t  len 
)
extern

Referenced by SDL_memcpy4().

◆ SDL_memcpy4()

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 at line 775 of file SDL_stdinc.h.

776{
777 return SDL_memcpy(dst, src, dwords * 4);
778}

References SDL_memcpy().

◆ SDL_memmove()

void * SDL_memmove ( SDL_OUT_BYTECAP(len) void *  dst,
SDL_IN_BYTECAP(len) const void *  src,
size_t  len 
)
extern

◆ SDL_memset()

void * SDL_memset ( SDL_OUT_BYTECAP(len) void *  dst,
int  c,
size_t  len 
)
extern

◆ SDL_memset4()

SDL_FORCE_INLINE void SDL_memset4 ( void *  dst,
Uint32  val,
size_t  dwords 
)

Definition at line 534 of file SDL_stdinc.h.

535{
536#if defined(__GNUC__) && defined(__i386__)
537 int u0, u1, u2;
538 __asm__ __volatile__ (
539 "cld \n\t"
540 "rep ; stosl \n\t"
541 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
542 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
543 : "memory"
544 );
545#else
546 size_t _n = (dwords + 3) / 4;
547 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
548 Uint32 _val = (val);
549 if (dwords == 0) {
550 return;
551 }
552 switch (dwords % 4) {
553 case 0: do { *_p++ = _val; SDL_FALLTHROUGH;
554 case 3: *_p++ = _val; SDL_FALLTHROUGH;
555 case 2: *_p++ = _val; SDL_FALLTHROUGH;
556 case 1: *_p++ = _val;
557 } while ( --_n );
558 }
559#endif
560}

References SDL_FALLTHROUGH, and SDL_static_cast.

◆ SDL_pow()

double SDL_pow ( double  x,
double  y 
)
extern

◆ SDL_powf()

float SDL_powf ( float  x,
float  y 
)
extern

◆ SDL_qsort()

void SDL_qsort ( void *  base,
size_t  nmemb,
size_t  size,
int(*)(const void *, const void *)  compare 
)
extern

◆ SDL_realloc()

void * SDL_realloc ( void *  mem,
size_t  size 
)
extern

◆ SDL_round()

double SDL_round ( double  x)
extern

◆ SDL_roundf()

float SDL_roundf ( float  x)
extern

◆ SDL_scalbn()

double SDL_scalbn ( double  x,
int  n 
)
extern

◆ SDL_scalbnf()

float SDL_scalbnf ( float  x,
int  n 
)
extern

◆ SDL_setenv()

int SDL_setenv ( const char *  name,
const char *  value,
int  overwrite 
)
extern

◆ SDL_SetMemoryFunctions()

int SDL_SetMemoryFunctions ( SDL_malloc_func  malloc_func,
SDL_calloc_func  calloc_func,
SDL_realloc_func  realloc_func,
SDL_free_func  free_func 
)
extern

Replace SDL's memory allocation functions with a custom set

Since
This function is available since SDL 2.0.7.

◆ SDL_sin()

double SDL_sin ( double  x)
extern

◆ SDL_sinf()

float SDL_sinf ( float  x)
extern

◆ SDL_size_add_overflow()

SDL_FORCE_INLINE int SDL_size_add_overflow ( size_t  a,
size_t  b,
size_t *  ret 
)

If a + b would overflow, return -1. Otherwise store a + b via ret and return 0.

Since
This function is available since SDL 2.24.0.

Definition at line 816 of file SDL_stdinc.h.

819{
820 if (b > SDL_SIZE_MAX - a) {
821 return -1;
822 }
823 *ret = a + b;
824 return 0;
825}

References SDL_SIZE_MAX.

◆ SDL_size_mul_overflow()

SDL_FORCE_INLINE int SDL_size_mul_overflow ( size_t  a,
size_t  b,
size_t *  ret 
)

If a * b would overflow, return -1. Otherwise store a * b via ret and return 0.

Since
This function is available since SDL 2.24.0.

Definition at line 786 of file SDL_stdinc.h.

789{
790 if (a != 0 && b > SDL_SIZE_MAX / a) {
791 return -1;
792 }
793 *ret = a * b;
794 return 0;
795}

References SDL_SIZE_MAX.

◆ SDL_snprintf()

int SDL_snprintf ( SDL_OUT_Z_CAP(maxlen) char *  text,
size_t  maxlen,
SDL_PRINTF_FORMAT_STRING const char *  fmt,
  ... 
)
extern

◆ SDL_sqrt()

double SDL_sqrt ( double  x)
extern

◆ SDL_sqrtf()

float SDL_sqrtf ( float  x)
extern

◆ SDL_sscanf()

int SDL_sscanf ( const char *  text,
SDL_SCANF_FORMAT_STRING const char *  fmt,
  ... 
)
extern

◆ SDL_strcasecmp()

int SDL_strcasecmp ( const char *  str1,
const char *  str2 
)
extern

◆ SDL_strcasestr()

char * SDL_strcasestr ( const char *  haystack,
const char *  needle 
)
extern

◆ SDL_strchr()

char * SDL_strchr ( const char *  str,
int  c 
)
extern

◆ SDL_strcmp()

int SDL_strcmp ( const char *  str1,
const char *  str2 
)
extern

◆ SDL_strdup()

char * SDL_strdup ( const char *  str)
extern

◆ SDL_strlcat()

size_t SDL_strlcat ( SDL_INOUT_Z_CAP(maxlen) char *  dst,
const char *  src,
size_t  maxlen 
)
extern

◆ SDL_strlcpy()

size_t SDL_strlcpy ( SDL_OUT_Z_CAP(maxlen) char *  dst,
const char *  src,
size_t  maxlen 
)
extern

◆ SDL_strlen()

size_t SDL_strlen ( const char *  str)
extern

◆ SDL_strlwr()

char * SDL_strlwr ( char *  str)
extern

◆ SDL_strncasecmp()

int SDL_strncasecmp ( const char *  str1,
const char *  str2,
size_t  len 
)
extern

◆ SDL_strncmp()

int SDL_strncmp ( const char *  str1,
const char *  str2,
size_t  maxlen 
)
extern

◆ SDL_strrchr()

char * SDL_strrchr ( const char *  str,
int  c 
)
extern

◆ SDL_strrev()

char * SDL_strrev ( char *  str)
extern

◆ SDL_strstr()

char * SDL_strstr ( const char *  haystack,
const char *  needle 
)
extern

◆ SDL_strtod()

double SDL_strtod ( const char *  str,
char **  endp 
)
extern

◆ SDL_strtokr()

char * SDL_strtokr ( char *  s1,
const char *  s2,
char **  saveptr 
)
extern

◆ SDL_strtol()

long SDL_strtol ( const char *  str,
char **  endp,
int  base 
)
extern

◆ SDL_strtoll()

Sint64 SDL_strtoll ( const char *  str,
char **  endp,
int  base 
)
extern

◆ SDL_strtoul()

unsigned long SDL_strtoul ( const char *  str,
char **  endp,
int  base 
)
extern

◆ SDL_strtoull()

Uint64 SDL_strtoull ( const char *  str,
char **  endp,
int  base 
)
extern

◆ SDL_strupr()

char * SDL_strupr ( char *  str)
extern

◆ SDL_tan()

double SDL_tan ( double  x)
extern

◆ SDL_tanf()

float SDL_tanf ( float  x)
extern

◆ SDL_tolower()

int SDL_tolower ( int  x)
extern

◆ SDL_toupper()

int SDL_toupper ( int  x)
extern

◆ SDL_trunc()

double SDL_trunc ( double  x)
extern

◆ SDL_truncf()

float SDL_truncf ( float  x)
extern

◆ SDL_uitoa()

char * SDL_uitoa ( unsigned int  value,
char *  str,
int  radix 
)
extern

◆ SDL_ulltoa()

char * SDL_ulltoa ( Uint64  value,
char *  str,
int  radix 
)
extern

◆ SDL_ultoa()

char * SDL_ultoa ( unsigned long  value,
char *  str,
int  radix 
)
extern

◆ SDL_utf8strlcpy()

size_t SDL_utf8strlcpy ( SDL_OUT_Z_CAP(dst_bytes) char *  dst,
const char *  src,
size_t  dst_bytes 
)
extern

◆ SDL_utf8strlen()

size_t SDL_utf8strlen ( const char *  str)
extern

◆ SDL_utf8strnlen()

size_t SDL_utf8strnlen ( const char *  str,
size_t  bytes 
)
extern

◆ SDL_vasprintf()

int SDL_vasprintf ( char **  strp,
SDL_PRINTF_FORMAT_STRING const char *  fmt,
va_list  ap 
)
extern

◆ SDL_vsnprintf()

int SDL_vsnprintf ( SDL_OUT_Z_CAP(maxlen) char *  text,
size_t  maxlen,
SDL_PRINTF_FORMAT_STRING const char *  fmt,
va_list  ap 
)
extern

◆ SDL_vsscanf()

int SDL_vsscanf ( const char *  text,
SDL_SCANF_FORMAT_STRING const char *  fmt,
va_list  ap 
)
extern

◆ SDL_wcscasecmp()

int SDL_wcscasecmp ( const wchar_t *  str1,
const wchar_t *  str2 
)
extern

◆ SDL_wcscmp()

int SDL_wcscmp ( const wchar_t *  str1,
const wchar_t *  str2 
)
extern

◆ SDL_wcsdup()

wchar_t * SDL_wcsdup ( const wchar_t *  wstr)
extern

◆ SDL_wcslcat()

size_t SDL_wcslcat ( SDL_INOUT_Z_CAP(maxlen) wchar_t *  dst,
const wchar_t *  src,
size_t  maxlen 
)
extern

◆ SDL_wcslcpy()

size_t SDL_wcslcpy ( SDL_OUT_Z_CAP(maxlen) wchar_t *  dst,
const wchar_t *  src,
size_t  maxlen 
)
extern

◆ SDL_wcslen()

size_t SDL_wcslen ( const wchar_t *  wstr)
extern

◆ SDL_wcsncasecmp()

int SDL_wcsncasecmp ( const wchar_t *  str1,
const wchar_t *  str2,
size_t  len 
)
extern

◆ SDL_wcsncmp()

int SDL_wcsncmp ( const wchar_t *  str1,
const wchar_t *  str2,
size_t  maxlen 
)
extern

◆ SDL_wcsstr()

wchar_t * SDL_wcsstr ( const wchar_t *  haystack,
const wchar_t *  needle 
)
extern