SDL 2.0
Macros
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 */
 
#define SDL_MIN_SINT8   ((Sint8)(~0x7F)) /* -128 */
 
#define SDL_MAX_UINT8   ((Uint8)0xFF) /* 255 */
 
#define SDL_MIN_UINT8   ((Uint8)0x00) /* 0 */
 
#define SDL_MAX_SINT16   ((Sint16)0x7FFF) /* 32767 */
 
#define SDL_MIN_SINT16   ((Sint16)(~0x7FFF)) /* -32768 */
 
#define SDL_MAX_UINT16   ((Uint16)0xFFFF) /* 65535 */
 
#define SDL_MIN_UINT16   ((Uint16)0x0000) /* 0 */
 
#define SDL_MAX_SINT32   ((Sint32)0x7FFFFFFF) /* 2147483647 */
 
#define SDL_MIN_SINT32   ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
 
#define SDL_MAX_UINT32   ((Uint32)0xFFFFFFFFu) /* 4294967295 */
 
#define SDL_MIN_UINT32   ((Uint32)0x00000000) /* 0 */
 
#define SDL_MAX_SINT64   ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
 
#define SDL_MIN_SINT64   ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
 
#define SDL_MAX_UINT64   ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
 
#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 int(* SDL_CompareCallback) (const void *, const void *)
 
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, SDL_CompareCallback compare)
 
void * SDL_bsearch (const void *key, const void *base, size_t nmemb, size_t size, SDL_CompareCallback compare)
 
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)
 

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 130 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 136 of file SDL_stdinc.h.

◆ SDL_clamp

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

Definition at line 516 of file SDL_stdinc.h.

◆ SDL_COMPILE_TIME_ASSERT

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

Definition at line 406 of file SDL_stdinc.h.

434{
435 DUMMY_ENUM_VALUE
436} SDL_DUMMY_ENUM;
437
438SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
439#endif
440#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
441/** \endcond */
442
443#include "begin_code.h"
444/* Set up for C function definitions, even when using C++ */
445#ifdef __cplusplus
446extern "C" {
447#endif
448
449#ifdef HAVE_ALLOCA
450#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
451#define SDL_stack_free(data)
452#else
453#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
454#define SDL_stack_free(data) SDL_free(data)
455#endif
456
457extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
458extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
459extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
460extern DECLSPEC void SDLCALL SDL_free(void *mem);
461
462typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
463typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
464typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
465typedef void (SDLCALL *SDL_free_func)(void *mem);
466
467/**
468 * Get the original set of SDL memory functions
469 *
470 * \since This function is available since SDL 2.24.0.
471 */
472extern DECLSPEC void SDLCALL SDL_GetOriginalMemoryFunctions(SDL_malloc_func *malloc_func,
473 SDL_calloc_func *calloc_func,
474 SDL_realloc_func *realloc_func,
475 SDL_free_func *free_func);
476
477/**
478 * Get the current set of SDL memory functions
479 *
480 * \since This function is available since SDL 2.0.7.
481 */
482extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
483 SDL_calloc_func *calloc_func,
484 SDL_realloc_func *realloc_func,
485 SDL_free_func *free_func);
486
487/**
488 * Replace SDL's memory allocation functions with a custom set
489 *
490 * \since This function is available since SDL 2.0.7.
491 */
492extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
493 SDL_calloc_func calloc_func,
494 SDL_realloc_func realloc_func,
495 SDL_free_func free_func);
496
497/**
498 * Get the number of outstanding (unfreed) allocations
499 *
500 * \since This function is available since SDL 2.0.7.
501 */
502extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
503
504extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
505extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
506
507typedef int (SDLCALL *SDL_CompareCallback)(const void *, const void *);
508extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, SDL_CompareCallback compare);
509extern DECLSPEC void * SDLCALL SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, SDL_CompareCallback compare);
510
511extern DECLSPEC int SDLCALL SDL_abs(int x);
512
513/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
514#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
515#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
516#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
517
518extern DECLSPEC int SDLCALL SDL_isalpha(int x);
519extern DECLSPEC int SDLCALL SDL_isalnum(int x);
520extern DECLSPEC int SDLCALL SDL_isblank(int x);
521extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
522extern DECLSPEC int SDLCALL SDL_isdigit(int x);
523extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
524extern DECLSPEC int SDLCALL SDL_ispunct(int x);
525extern DECLSPEC int SDLCALL SDL_isspace(int x);
526extern DECLSPEC int SDLCALL SDL_isupper(int x);
527extern DECLSPEC int SDLCALL SDL_islower(int x);
528extern DECLSPEC int SDLCALL SDL_isprint(int x);
529extern DECLSPEC int SDLCALL SDL_isgraph(int x);
530extern DECLSPEC int SDLCALL SDL_toupper(int x);
531extern DECLSPEC int SDLCALL SDL_tolower(int x);
532
533extern DECLSPEC Uint16 SDLCALL SDL_crc16(Uint16 crc, const void *data, size_t len);
534extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
535
536extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
537
538/* Some safe(r) macros for zero'ing structures... */
539#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
540#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
541#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
542
543#define SDL_copyp(dst, src) \
544 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
545 SDL_memcpy((dst), (src), sizeof (*(src)))
546
547
548/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
549SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
550{
551#if defined(__GNUC__) && defined(__i386__)
552 int u0, u1, u2;
553 __asm__ __volatile__ (
554 "cld \n\t"
555 "rep ; stosl \n\t"
556 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
557 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
558 : "memory"
559 );
560#else
561 size_t _n = (dwords + 3) / 4;
562 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
563 Uint32 _val = (val);
564 if (dwords == 0) {
565 return;
566 }
567 switch (dwords % 4) {
568 default:
569 case 0: do { *_p++ = _val; SDL_FALLTHROUGH;
570 case 3: *_p++ = _val; SDL_FALLTHROUGH;
571 case 2: *_p++ = _val; SDL_FALLTHROUGH;
572 case 1: *_p++ = _val;
573 } while ( --_n );
574 }
575#endif
576}
577
578extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
579
580extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
581extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
582
583extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
584extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
585extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
586extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
587extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
588
589extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
590extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
591extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
592extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
593
594extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
595extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
596extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
597extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
598extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
599extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
600extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
601extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
602extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
603extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
604extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
605extern DECLSPEC char *SDLCALL SDL_strcasestr(const char *haystack, const char *needle);
606extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
607extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
608extern DECLSPEC size_t SDLCALL SDL_utf8strnlen(const char *str, size_t bytes);
609
610extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
611extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
612extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
613extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
614extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
615extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
616
617extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
618extern DECLSPEC double SDLCALL SDL_atof(const char *str);
619extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
620extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
621extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
622extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
623extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
624
625extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
626extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
627extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
628extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
629
630extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
631extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2);
632extern 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);
633extern 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);
634extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
635extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2);
636
637#ifndef HAVE_M_PI
638#ifndef M_PI
639#define M_PI 3.14159265358979323846264338327950288 /**< pi */
640#endif
641#endif
642
643/**
644 * Use this function to compute arc cosine of `x`.
645 *
646 * The definition of `y = acos(x)` is `x = cos(y)`.
647 *
648 * Domain: `-1 <= x <= 1`
649 *
650 * Range: `0 <= y <= Pi`
651 *
652 * \param x floating point value, in radians.
653 * \returns arc cosine of `x`.
654 *
655 * \since This function is available since SDL 2.0.2.
656 */
657extern DECLSPEC double SDLCALL SDL_acos(double x);
658extern DECLSPEC float SDLCALL SDL_acosf(float x);
659extern DECLSPEC double SDLCALL SDL_asin(double x);
660extern DECLSPEC float SDLCALL SDL_asinf(float x);
661extern DECLSPEC double SDLCALL SDL_atan(double x);
662extern DECLSPEC float SDLCALL SDL_atanf(float x);
663extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
664extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
665extern DECLSPEC double SDLCALL SDL_ceil(double x);
666extern DECLSPEC float SDLCALL SDL_ceilf(float x);
667extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
668extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
669extern DECLSPEC double SDLCALL SDL_cos(double x);
670extern DECLSPEC float SDLCALL SDL_cosf(float x);
671extern DECLSPEC double SDLCALL SDL_exp(double x);
672extern DECLSPEC float SDLCALL SDL_expf(float x);
673extern DECLSPEC double SDLCALL SDL_fabs(double x);
674extern DECLSPEC float SDLCALL SDL_fabsf(float x);
675extern DECLSPEC double SDLCALL SDL_floor(double x);
676extern DECLSPEC float SDLCALL SDL_floorf(float x);
677extern DECLSPEC double SDLCALL SDL_trunc(double x);
678extern DECLSPEC float SDLCALL SDL_truncf(float x);
679extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
680extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
681extern DECLSPEC double SDLCALL SDL_log(double x);
682extern DECLSPEC float SDLCALL SDL_logf(float x);
683extern DECLSPEC double SDLCALL SDL_log10(double x);
684extern DECLSPEC float SDLCALL SDL_log10f(float x);
685extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
686extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
687extern DECLSPEC double SDLCALL SDL_round(double x);
688extern DECLSPEC float SDLCALL SDL_roundf(float x);
689extern DECLSPEC long SDLCALL SDL_lround(double x);
690extern DECLSPEC long SDLCALL SDL_lroundf(float x);
691extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
692extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
693extern DECLSPEC double SDLCALL SDL_sin(double x);
694extern DECLSPEC float SDLCALL SDL_sinf(float x);
695extern DECLSPEC double SDLCALL SDL_sqrt(double x);
696extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
697extern DECLSPEC double SDLCALL SDL_tan(double x);
698extern DECLSPEC float SDLCALL SDL_tanf(float x);
699
700/* The SDL implementation of iconv() returns these error codes */
701#define SDL_ICONV_ERROR (size_t)-1
702#define SDL_ICONV_E2BIG (size_t)-2
703#define SDL_ICONV_EILSEQ (size_t)-3
704#define SDL_ICONV_EINVAL (size_t)-4
705
706/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
707typedef struct _SDL_iconv_t *SDL_iconv_t;
708extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
709 const char *fromcode);
710extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
711extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
712 size_t * inbytesleft, char **outbuf,
713 size_t * outbytesleft);
714
715/**
716 * This function converts a buffer or string between encodings in one pass,
717 * returning a string that must be freed with SDL_free() or NULL on error.
718 *
719 * \since This function is available since SDL 2.0.0.
720 */
721extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
722 const char *fromcode,
723 const char *inbuf,
724 size_t inbytesleft);
725
726/* Some helper macros for common cases... */
727#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
728#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
729#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
730#define SDL_iconv_wchar_utf8(S) SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
731
732/* force builds using Clang's static analysis tools to use literal C runtime
733 here, since there are possibly tests that are ineffective otherwise. */
734#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
735
736/* The analyzer knows about strlcpy even when the system doesn't provide it */
737#ifndef HAVE_STRLCPY
738size_t strlcpy(char* dst, const char* src, size_t size);
739#endif
740
741/* The analyzer knows about strlcat even when the system doesn't provide it */
742#ifndef HAVE_STRLCAT
743size_t strlcat(char* dst, const char* src, size_t size);
744#endif
745
746#ifndef HAVE_WCSLCPY
747size_t wcslcpy(wchar_t *dst, const wchar_t *src, size_t size);
748#endif
749
750#ifndef HAVE_WCSLCAT
751size_t wcslcat(wchar_t *dst, const wchar_t *src, size_t size);
752#endif
753
754#ifndef _WIN32
755/* strdup is not ANSI but POSIX, and its prototype might be hidden... */
756/* not for windows: might conflict with string.h where strdup may have
757 * dllimport attribute: https://github.com/libsdl-org/SDL/issues/12948 */
758char *strdup(const char *str);
759#endif
760
761/* Starting LLVM 16, the analyser errors out if these functions do not have
762 their prototype defined (clang-diagnostic-implicit-function-declaration) */
763#include <stdlib.h>
764#include <string.h>
765#include <stdio.h>
766
767#define SDL_malloc malloc
768#define SDL_calloc calloc
769#define SDL_realloc realloc
770#define SDL_free free
771#define SDL_memset memset
772#define SDL_memcpy memcpy
773#define SDL_memmove memmove
774#define SDL_memcmp memcmp
775#define SDL_strlcpy strlcpy
776#define SDL_strlcat strlcat
777#define SDL_strlen strlen
778#define SDL_wcslen wcslen
779#define SDL_wcslcpy wcslcpy
780#define SDL_wcslcat wcslcat
781#define SDL_strdup strdup
782#define SDL_wcsdup wcsdup
783#define SDL_strchr strchr
784#define SDL_strrchr strrchr
785#define SDL_strstr strstr
786#define SDL_wcsstr wcsstr
787#define SDL_strtokr strtok_r
788#define SDL_strcmp strcmp
789#define SDL_wcscmp wcscmp
790#define SDL_strncmp strncmp
791#define SDL_wcsncmp wcsncmp
792#define SDL_strcasecmp strcasecmp
793#define SDL_strncasecmp strncasecmp
794#define SDL_sscanf sscanf
795#define SDL_vsscanf vsscanf
796#define SDL_snprintf snprintf
797#define SDL_vsnprintf vsnprintf
798#endif
799
800SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
801{
802 return SDL_memcpy(dst, src, dwords * 4);
803}
804
805/**
806 * If a * b would overflow, return -1.
807 *
808 * Otherwise store a * b via ret and return 0.
809 *
810 * \since This function is available since SDL 2.24.0.
811 */
812SDL_FORCE_INLINE int SDL_size_mul_overflow (size_t a,
813 size_t b,
814 size_t *ret)
815{
816 if (a != 0 && b > SDL_SIZE_MAX / a) {
817 return -1;
818 }
819 *ret = a * b;
820 return 0;
821}
822
823#if _SDL_HAS_BUILTIN(__builtin_mul_overflow)
824/* This needs to be wrapped in an inline rather than being a direct #define,
825 * because __builtin_mul_overflow() is type-generic, but we want to be
826 * consistent about interpreting a and b as size_t. */
827SDL_FORCE_INLINE int _SDL_size_mul_overflow_builtin (size_t a,
828 size_t b,
829 size_t *ret)
830{
831 return __builtin_mul_overflow(a, b, ret) == 0 ? 0 : -1;
832}
833#define SDL_size_mul_overflow(a, b, ret) (_SDL_size_mul_overflow_builtin(a, b, ret))
834#endif
835
836/**
837 * If a + b would overflow, return -1.
838 *
839 * Otherwise store a + b via ret and return 0.
840 *
841 * \since This function is available since SDL 2.24.0.
842 */
843SDL_FORCE_INLINE int SDL_size_add_overflow (size_t a,
844 size_t b,
845 size_t *ret)
846{
847 if (b > SDL_SIZE_MAX - a) {
848 return -1;
849 }
850 *ret = a + b;
851 return 0;
852}
853
854#if _SDL_HAS_BUILTIN(__builtin_add_overflow)
855/* This needs to be wrapped in an inline rather than being a direct #define,
856 * the same as the call to __builtin_mul_overflow() above. */
857SDL_FORCE_INLINE int _SDL_size_add_overflow_builtin (size_t a,
858 size_t b,
859 size_t *ret)
860{
861 return __builtin_add_overflow(a, b, ret) == 0 ? 0 : -1;
862}
863#define SDL_size_add_overflow(a, b, ret) (_SDL_size_add_overflow_builtin(a, b, ret))
864#endif
865
866/* Ends C function definitions when using C++ */
867#ifdef __cplusplus
868}
869#endif
870#include "close_code.h"
871
872#endif /* SDL_stdinc_h_ */
873
874/* vi: set ts=4 sw=4 expandtab: */
SDL_wcsdup
wchar_t * SDL_wcsdup(const wchar_t *wstr)
SDL_sqrt
double SDL_sqrt(double x)
SDL_atoi
int SDL_atoi(const char *str)
SDL_iconv_open
SDL_iconv_t SDL_iconv_open(const char *tocode, const char *fromcode)
SDL_tanf
float SDL_tanf(float x)
SDL_memset4
SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
Definition SDL_stdinc.h:549
SDL_isspace
int SDL_isspace(int x)
SDL_isalnum
int SDL_isalnum(int x)
SDL_strlwr
char * SDL_strlwr(char *str)
SDL_realloc
void * SDL_realloc(void *mem, size_t size)
SDL_tolower
int SDL_tolower(int x)
SDL_abs
int SDL_abs(int x)
SDL_iconv
size_t SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
SDL_tan
double SDL_tan(double x)
SDL_ltoa
char * SDL_ltoa(long value, char *str, int radix)
SDL_qsort
void SDL_qsort(void *base, size_t nmemb, size_t size, SDL_CompareCallback compare)
SDL_isxdigit
int SDL_isxdigit(int x)
SDL_ceilf
float SDL_ceilf(float x)
Sint64
int64_t Sint64
Definition SDL_stdinc.h:238
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)
SDL_malloc_func
void *(* SDL_malloc_func)(size_t size)
Definition SDL_stdinc.h:462
SDL_OUT_BYTECAP
#define SDL_OUT_BYTECAP(x)
Definition SDL_stdinc.h:373
SDL_strrchr
char * SDL_strrchr(const char *str, int c)
SDL_SIZE_MAX
#define SDL_SIZE_MAX
Definition SDL_stdinc.h:119
SDL_wcsncmp
int SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen)
Uint16
uint16_t Uint16
Definition SDL_stdinc.h:217
SDL_sscanf
int SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt,...) SDL_SCANF_VARARG_FUNC(2)
SDL_atanf
float SDL_atanf(float x)
SDL_isprint
int SDL_isprint(int x)
SDL_PRINTF_VARARG_FUNCV
#define SDL_PRINTF_VARARG_FUNCV(fmtargnumber)
Definition SDL_stdinc.h:385
SDL_iconv_t
struct _SDL_iconv_t * SDL_iconv_t
Definition SDL_stdinc.h:707
SDL_wcsncasecmp
int SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len)
SDL_itoa
char * SDL_itoa(int value, char *str, int radix)
SDL_strdup
char * SDL_strdup(const char *str)
SDL_copysignf
float SDL_copysignf(float x, float y)
SDL_strupr
char * SDL_strupr(char *str)
SDL_acosf
float SDL_acosf(float x)
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)
SDL_wcslcat
size_t SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
SDL_size_mul_overflow
SDL_FORCE_INLINE int SDL_size_mul_overflow(size_t a, size_t b, size_t *ret)
Definition SDL_stdinc.h:812
SDL_strncmp
int SDL_strncmp(const char *str1, const char *str2, size_t maxlen)
SDL_strchr
char * SDL_strchr(const char *str, int c)
SDL_IN_BYTECAP
#define SDL_IN_BYTECAP(x)
Definition SDL_stdinc.h:369
SDL_malloc
void * SDL_malloc(size_t size)
SDL_vasprintf
int SDL_vasprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, va_list ap) SDL_PRINTF_VARARG_FUNCV(2)
SDL_uitoa
char * SDL_uitoa(unsigned int value, char *str, int radix)
SDL_isalpha
int SDL_isalpha(int x)
SDL_round
double SDL_round(double x)
SDL_lround
long SDL_lround(double x)
SDL_isdigit
int SDL_isdigit(int x)
SDL_isblank
int SDL_isblank(int x)
SDL_iconv_close
int SDL_iconv_close(SDL_iconv_t cd)
SDL_sin
double SDL_sin(double x)
SDL_strcasestr
char * SDL_strcasestr(const char *haystack, const char *needle)
SDL_scalbnf
float SDL_scalbnf(float x, int n)
SDL_memcpy
void * SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
SDL_pow
double SDL_pow(double x, double y)
SDL_utf8strlcpy
size_t SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes)
SDL_asinf
float SDL_asinf(float x)
SDL_asin
double SDL_asin(double x)
SDL_acos
double SDL_acos(double x)
SDL_wcsstr
wchar_t * SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle)
SDL_sinf
float SDL_sinf(float x)
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) SDL_PRINTF_VARARG_FUNCV(3)
SDL_SCANF_VARARG_FUNCV
#define SDL_SCANF_VARARG_FUNCV(fmtargnumber)
Definition SDL_stdinc.h:387
SDL_ceil
double SDL_ceil(double x)
SDL_utf8strnlen
size_t SDL_utf8strnlen(const char *str, size_t bytes)
SDL_memset
void * SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len)
SDL_strcasecmp
int SDL_strcasecmp(const char *str1, const char *str2)
SDL_SCANF_FORMAT_STRING
#define SDL_SCANF_FORMAT_STRING
Definition SDL_stdinc.h:376
SDL_strstr
char * SDL_strstr(const char *haystack, const char *needle)
SDL_GetNumAllocations
int SDL_GetNumAllocations(void)
SDL_exp
double SDL_exp(double x)
SDL_static_cast
#define SDL_static_cast(type, expression)
Definition SDL_stdinc.h:163
SDL_wcslcpy
size_t SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen)
SDL_atan
double SDL_atan(double x)
SDL_sqrtf
float SDL_sqrtf(float x)
SDL_wcslen
size_t SDL_wcslen(const wchar_t *wstr)
SDL_setenv
int SDL_setenv(const char *name, const char *value, int overwrite)
SDL_calloc
void * SDL_calloc(size_t nmemb, size_t size)
SDL_strlcpy
size_t SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
SDL_INOUT_Z_CAP
#define SDL_INOUT_Z_CAP(x)
Definition SDL_stdinc.h:370
SDL_scalbn
double SDL_scalbn(double x, int n)
SDL_iconv_string
char * SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft)
SDL_wcscasecmp
int SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2)
SDL_getenv
char * SDL_getenv(const char *name)
SDL_fmod
double SDL_fmod(double x, double y)
SDL_lltoa
char * SDL_lltoa(Sint64 value, char *str, int radix)
SDL_fabs
double SDL_fabs(double x)
SDL_strtoll
Sint64 SDL_strtoll(const char *str, char **endp, int base)
SDL_ispunct
int SDL_ispunct(int x)
SDL_truncf
float SDL_truncf(float x)
SDL_log10
double SDL_log10(double x)
SDL_expf
float SDL_expf(float x)
SDL_strrev
char * SDL_strrev(char *str)
SDL_floor
double SDL_floor(double x)
SDL_wcscmp
int SDL_wcscmp(const wchar_t *str1, const wchar_t *str2)
SDL_strtol
long SDL_strtol(const char *str, char **endp, int base)
SDL_crc32
Uint32 SDL_crc32(Uint32 crc, const void *data, size_t len)
SDL_islower
int SDL_islower(int x)
SDL_logf
float SDL_logf(float x)
SDL_log10f
float SDL_log10f(float x)
SDL_memmove
void * SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len)
SDL_free_func
void(* SDL_free_func)(void *mem)
Definition SDL_stdinc.h:465
SDL_memcmp
int SDL_memcmp(const void *s1, const void *s2, size_t len)
SDL_ulltoa
char * SDL_ulltoa(Uint64 value, char *str, int radix)
SDL_roundf
float SDL_roundf(float x)
SDL_strtod
double SDL_strtod(const char *str, char **endp)
SDL_lroundf
long SDL_lroundf(float x)
SDL_ultoa
char * SDL_ultoa(unsigned long value, char *str, int radix)
SDL_atof
double SDL_atof(const char *str)
SDL_strtoul
unsigned long SDL_strtoul(const char *str, char **endp, int base)
SDL_floorf
float SDL_floorf(float x)
SDL_strcmp
int SDL_strcmp(const char *str1, const char *str2)
SDL_size_add_overflow
SDL_FORCE_INLINE int SDL_size_add_overflow(size_t a, size_t b, size_t *ret)
Definition SDL_stdinc.h:843
SDL_cos
double SDL_cos(double x)
SDL_PRINTF_FORMAT_STRING
#define SDL_PRINTF_FORMAT_STRING
Definition SDL_stdinc.h:375
SDL_fmodf
float SDL_fmodf(float x, float y)
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)
SDL_PRINTF_VARARG_FUNC
#define SDL_PRINTF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:384
SDL_COMPILE_TIME_ASSERT
#define SDL_COMPILE_TIME_ASSERT(name, x)
Definition SDL_stdinc.h:406
SDL_atan2f
float SDL_atan2f(float y, float x)
SDL_isupper
int SDL_isupper(int x)
SDL_fabsf
float SDL_fabsf(float x)
Uint64
uint64_t Uint64
Definition SDL_stdinc.h:245
SDL_iscntrl
int SDL_iscntrl(int x)
SDL_bsearch
void * SDL_bsearch(const void *key, const void *base, size_t nmemb, size_t size, SDL_CompareCallback compare)
SDL_free
void SDL_free(void *mem)
SDL_calloc_func
void *(* SDL_calloc_func)(size_t nmemb, size_t size)
Definition SDL_stdinc.h:463
SDL_SCANF_VARARG_FUNC
#define SDL_SCANF_VARARG_FUNC(fmtargnumber)
Definition SDL_stdinc.h:386
SDL_atan2
double SDL_atan2(double y, double x)
SDL_log
double SDL_log(double x)
SDL_CompareCallback
int(* SDL_CompareCallback)(const void *, const void *)
Definition SDL_stdinc.h:507
SDL_toupper
int SDL_toupper(int x)
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 SDL_stdinc.h:800
Uint32
uint32_t Uint32
Definition SDL_stdinc.h:231
SDL_powf
float SDL_powf(float x, float y)
SDL_strlen
size_t SDL_strlen(const char *str)
SDL_crc16
Uint16 SDL_crc16(Uint16 crc, const void *data, size_t len)
SDL_snprintf
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)
SDL_cosf
float SDL_cosf(float x)
SDL_strlcat
size_t SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen)
SDL_copysign
double SDL_copysign(double x, double y)
SDL_vsscanf
int SDL_vsscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, va_list ap) SDL_SCANF_VARARG_FUNCV(2)
SDL_realloc_func
void *(* SDL_realloc_func)(void *mem, size_t size)
Definition SDL_stdinc.h:464
SDL_strtokr
char * SDL_strtokr(char *s1, const char *s2, char **saveptr)
SDL_utf8strlen
size_t SDL_utf8strlen(const char *str)
SDL_isgraph
int SDL_isgraph(int x)
SDL_strncasecmp
int SDL_strncasecmp(const char *str1, const char *str2, size_t len)
SDL_asprintf
int SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt,...) SDL_PRINTF_VARARG_FUNC(2)
SDL_OUT_Z_CAP
#define SDL_OUT_Z_CAP(x)
Definition SDL_stdinc.h:371
SDL_strtoull
Uint64 SDL_strtoull(const char *str, char **endp, int base)
SDL_trunc
double SDL_trunc(double x)
begin_code.h
SDL_FALLTHROUGH
#define SDL_FALLTHROUGH
Definition begin_code.h:185
SDL_FORCE_INLINE
#define SDL_FORCE_INLINE
Definition begin_code.h:145
close_code.h

◆ SDL_const_cast

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

Definition at line 164 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)))
SDL_copyp
#define SDL_copyp(dst, src)
Definition SDL_stdinc.h:543

Definition at line 543 of file SDL_stdinc.h.

544 { SDL_COMPILE_TIME_ASSERT(SDL_copyp, sizeof (*(dst)) == sizeof (*(src))); } \
545 SDL_memcpy((dst), (src), sizeof (*(src)))

◆ SDL_FLT_EPSILON

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

Definition at line 260 of file SDL_stdinc.h.

◆ SDL_FOURCC

#define SDL_FOURCC (   A,
  B,
  C,
  D 
)
Value:
((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
(SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
Uint8
uint8_t Uint8
Definition SDL_stdinc.h:203

Definition at line 169 of file SDL_stdinc.h.

◆ SDL_ICONV_E2BIG

#define SDL_ICONV_E2BIG   (size_t)-2

Definition at line 702 of file SDL_stdinc.h.

◆ SDL_ICONV_EILSEQ

#define SDL_ICONV_EILSEQ   (size_t)-3

Definition at line 703 of file SDL_stdinc.h.

◆ SDL_ICONV_EINVAL

#define SDL_ICONV_EINVAL   (size_t)-4

Definition at line 704 of file SDL_stdinc.h.

◆ SDL_ICONV_ERROR

#define SDL_ICONV_ERROR   (size_t)-1

Definition at line 701 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 727 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 728 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 729 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 730 of file SDL_stdinc.h.

◆ SDL_IN_BYTECAP

#define SDL_IN_BYTECAP (   x)

Definition at line 369 of file SDL_stdinc.h.

◆ SDL_INOUT_Z_CAP

#define SDL_INOUT_Z_CAP (   x)

Definition at line 370 of file SDL_stdinc.h.

◆ SDL_max

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

Definition at line 515 of file SDL_stdinc.h.

◆ SDL_MAX_SINT16

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

Definition at line 211 of file SDL_stdinc.h.

◆ SDL_MAX_SINT32

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

Definition at line 225 of file SDL_stdinc.h.

◆ SDL_MAX_SINT64

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

Definition at line 239 of file SDL_stdinc.h.

◆ SDL_MAX_SINT8

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

Definition at line 197 of file SDL_stdinc.h.

◆ SDL_MAX_UINT16

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

Definition at line 218 of file SDL_stdinc.h.

◆ SDL_MAX_UINT32

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

Definition at line 232 of file SDL_stdinc.h.

◆ SDL_MAX_UINT64

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

Definition at line 246 of file SDL_stdinc.h.

◆ SDL_MAX_UINT8

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

Definition at line 204 of file SDL_stdinc.h.

◆ SDL_min

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

Definition at line 514 of file SDL_stdinc.h.

◆ SDL_MIN_SINT16

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

Definition at line 212 of file SDL_stdinc.h.

◆ SDL_MIN_SINT32

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

Definition at line 226 of file SDL_stdinc.h.

◆ SDL_MIN_SINT64

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

Definition at line 240 of file SDL_stdinc.h.

◆ SDL_MIN_SINT8

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

Definition at line 198 of file SDL_stdinc.h.

◆ SDL_MIN_UINT16

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

Definition at line 219 of file SDL_stdinc.h.

◆ SDL_MIN_UINT32

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

Definition at line 233 of file SDL_stdinc.h.

◆ SDL_MIN_UINT64

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

Definition at line 247 of file SDL_stdinc.h.

◆ SDL_MIN_UINT8

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

Definition at line 205 of file SDL_stdinc.h.

◆ SDL_OUT_BYTECAP

#define SDL_OUT_BYTECAP (   x)

Definition at line 373 of file SDL_stdinc.h.

◆ SDL_OUT_CAP

#define SDL_OUT_CAP (   x)

Definition at line 372 of file SDL_stdinc.h.

◆ SDL_OUT_Z_BYTECAP

#define SDL_OUT_Z_BYTECAP (   x)

Definition at line 374 of file SDL_stdinc.h.

◆ SDL_OUT_Z_CAP

#define SDL_OUT_Z_CAP (   x)

Definition at line 371 of file SDL_stdinc.h.

◆ SDL_PRINTF_FORMAT_STRING

#define SDL_PRINTF_FORMAT_STRING

Definition at line 375 of file SDL_stdinc.h.

◆ SDL_PRINTF_VARARG_FUNC

#define SDL_PRINTF_VARARG_FUNC (   fmtargnumber)

Definition at line 384 of file SDL_stdinc.h.

◆ SDL_PRINTF_VARARG_FUNCV

#define SDL_PRINTF_VARARG_FUNCV (   fmtargnumber)

Definition at line 385 of file SDL_stdinc.h.

◆ SDL_PRIs32

#define SDL_PRIs32   "d"

Definition at line 316 of file SDL_stdinc.h.

◆ SDL_PRIs64

#define SDL_PRIs64   "I64d"

Definition at line 270 of file SDL_stdinc.h.

◆ SDL_PRIu32

#define SDL_PRIu32   "u"

Definition at line 323 of file SDL_stdinc.h.

◆ SDL_PRIu64

#define SDL_PRIu64   "I64u"

Definition at line 281 of file SDL_stdinc.h.

◆ SDL_PRIx32

#define SDL_PRIx32   "x"

Definition at line 330 of file SDL_stdinc.h.

◆ SDL_PRIX32

#define SDL_PRIX32   "X"

Definition at line 337 of file SDL_stdinc.h.

◆ SDL_PRIx64

#define SDL_PRIx64   "I64x"

Definition at line 292 of file SDL_stdinc.h.

◆ SDL_PRIX64

#define SDL_PRIX64   "I64X"

Definition at line 303 of file SDL_stdinc.h.

◆ SDL_reinterpret_cast

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

Definition at line 162 of file SDL_stdinc.h.

◆ SDL_SCANF_FORMAT_STRING

#define SDL_SCANF_FORMAT_STRING

Definition at line 376 of file SDL_stdinc.h.

◆ SDL_SCANF_VARARG_FUNC

#define SDL_SCANF_VARARG_FUNC (   fmtargnumber)

Definition at line 386 of file SDL_stdinc.h.

◆ SDL_SCANF_VARARG_FUNCV

#define SDL_SCANF_VARARG_FUNCV (   fmtargnumber)

Definition at line 387 of file SDL_stdinc.h.

◆ SDL_SIZE_MAX

#define SDL_SIZE_MAX   ((size_t) -1)

CategoryStdInc

This is a general header that includes C language support.

Definition at line 119 of file SDL_stdinc.h.

◆ SDL_stack_alloc

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

Definition at line 450 of file SDL_stdinc.h.

◆ SDL_stack_free

#define SDL_stack_free (   data)

Definition at line 451 of file SDL_stdinc.h.

◆ SDL_static_cast

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

Definition at line 163 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 148 of file SDL_stdinc.h.

◆ SDL_TABLESIZE

#define SDL_TABLESIZE (   table)    SDL_arraysize(table)

Definition at line 137 of file SDL_stdinc.h.

◆ SDL_zero

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

Definition at line 539 of file SDL_stdinc.h.

◆ SDL_zeroa

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

Definition at line 541 of file SDL_stdinc.h.

◆ SDL_zerop

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

Definition at line 540 of file SDL_stdinc.h.

Typedef Documentation

◆ SDL_calloc_func

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

Definition at line 463 of file SDL_stdinc.h.

◆ SDL_CompareCallback

typedef int(* SDL_CompareCallback) (const void *, const void *)

Definition at line 507 of file SDL_stdinc.h.

◆ SDL_free_func

typedef void(* SDL_free_func) (void *mem)

Definition at line 465 of file SDL_stdinc.h.

◆ SDL_iconv_t

typedef struct _SDL_iconv_t* SDL_iconv_t

Definition at line 707 of file SDL_stdinc.h.

◆ SDL_malloc_func

typedef void *(* SDL_malloc_func) (size_t size)

Definition at line 462 of file SDL_stdinc.h.

◆ SDL_realloc_func

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

Definition at line 464 of file SDL_stdinc.h.

◆ Sint16

typedef int16_t Sint16

A signed 16-bit integer type.

Definition at line 210 of file SDL_stdinc.h.

◆ Sint32

typedef int32_t Sint32

A signed 32-bit integer type.

Definition at line 224 of file SDL_stdinc.h.

◆ Sint64

typedef int64_t Sint64

A signed 64-bit integer type.

Definition at line 238 of file SDL_stdinc.h.

◆ Sint8

typedef int8_t Sint8

A signed 8-bit integer type.

Definition at line 196 of file SDL_stdinc.h.

◆ Uint16

typedef uint16_t Uint16

An unsigned 16-bit integer type.

Definition at line 217 of file SDL_stdinc.h.

◆ Uint32

typedef uint32_t Uint32

An unsigned 32-bit integer type.

Definition at line 231 of file SDL_stdinc.h.

◆ Uint64

typedef uint64_t Uint64

An unsigned 64-bit integer type.

Definition at line 245 of file SDL_stdinc.h.

◆ Uint8

typedef uint8_t Uint8

An unsigned 8-bit integer type.

Definition at line 203 of file SDL_stdinc.h.

Enumeration Type Documentation

◆ SDL_bool

enum SDL_bool
Enumerator
SDL_FALSE 
SDL_TRUE 

Definition at line 186 of file SDL_stdinc.h.

187{
188 SDL_FALSE = 0,
189 SDL_TRUE = 1
190} SDL_bool;
SDL_bool
SDL_bool
Definition SDL_stdinc.h:187
SDL_TRUE
@ SDL_TRUE
Definition SDL_stdinc.h:189
SDL_FALSE
@ SDL_FALSE
Definition SDL_stdinc.h:188

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,
SDL_CompareCallback  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 800 of file SDL_stdinc.h.

801{
802 return SDL_memcpy(dst, src, dwords * 4);
803}

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 549 of file SDL_stdinc.h.

550{
551#if defined(__GNUC__) && defined(__i386__)
552 int u0, u1, u2;
553 __asm__ __volatile__ (
554 "cld \n\t"
555 "rep ; stosl \n\t"
556 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
557 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
558 : "memory"
559 );
560#else
561 size_t _n = (dwords + 3) / 4;
562 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
563 Uint32 _val = (val);
564 if (dwords == 0) {
565 return;
566 }
567 switch (dwords % 4) {
568 default:
569 case 0: do { *_p++ = _val; SDL_FALLTHROUGH;
570 case 3: *_p++ = _val; SDL_FALLTHROUGH;
571 case 2: *_p++ = _val; SDL_FALLTHROUGH;
572 case 1: *_p++ = _val;
573 } while ( --_n );
574 }
575#endif
576}

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,
SDL_CompareCallback  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 843 of file SDL_stdinc.h.

846{
847 if (b > SDL_SIZE_MAX - a) {
848 return -1;
849 }
850 *ret = a + b;
851 return 0;
852}

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 812 of file SDL_stdinc.h.

815{
816 if (a != 0 && b > SDL_SIZE_MAX / a) {
817 return -1;
818 }
819 *ret = a * b;
820 return 0;
821}

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