# Undocumented

## Functions defined in the headers, but not in the wiki

- [SDL_DuplicateSurface](SDL_DuplicateSurface)
- [SDL_Error](SDL_Error)
- [SDL_HasExactlyOneBitSet32](SDL_HasExactlyOneBitSet32)
- [SDL_MemoryBarrierAcquireFunction](SDL_MemoryBarrierAcquireFunction)
- [SDL_OnApplicationDidBecomeActive](SDL_OnApplicationDidBecomeActive)
- [SDL_OnApplicationDidChangeStatusBarOrientation](SDL_OnApplicationDidChangeStatusBarOrientation)
- [SDL_OnApplicationDidEnterBackground](SDL_OnApplicationDidEnterBackground)
- [SDL_OnApplicationDidReceiveMemoryWarning](SDL_OnApplicationDidReceiveMemoryWarning)
- [SDL_OnApplicationWillEnterForeground](SDL_OnApplicationWillEnterForeground)
- [SDL_OnApplicationWillResignActive](SDL_OnApplicationWillResignActive)
- [SDL_OnApplicationWillTerminate](SDL_OnApplicationWillTerminate)
- [SDL_UnlockSensors](SDL_UnlockSensors)
- [SDL_abs](SDL_abs)
- [SDL_acosf](SDL_acosf)
- [SDL_asin](SDL_asin)
- [SDL_asinf](SDL_asinf)
- [SDL_asprintf](SDL_asprintf)
- [SDL_atan](SDL_atan)
- [SDL_atan2](SDL_atan2)
- [SDL_atan2f](SDL_atan2f)
- [SDL_atanf](SDL_atanf)
- [SDL_atof](SDL_atof)
- [SDL_atoi](SDL_atoi)
- [SDL_bsearch](SDL_bsearch)
- [SDL_calloc](SDL_calloc)
- [SDL_ceil](SDL_ceil)
- [SDL_ceilf](SDL_ceilf)
- [SDL_copysign](SDL_copysign)
- [SDL_copysignf](SDL_copysignf)
- [SDL_cos](SDL_cos)
- [SDL_cosf](SDL_cosf)
- [SDL_crc16](SDL_crc16)
- [SDL_crc32](SDL_crc32)
- [SDL_exp](SDL_exp)
- [SDL_expf](SDL_expf)
- [SDL_fabs](SDL_fabs)
- [SDL_fabsf](SDL_fabsf)
- [SDL_floor](SDL_floor)
- [SDL_floorf](SDL_floorf)
- [SDL_fmod](SDL_fmod)
- [SDL_fmodf](SDL_fmodf)
- [SDL_free](SDL_free)
- [SDL_getenv](SDL_getenv)
- [SDL_iconv](SDL_iconv)
- [SDL_iconv_close](SDL_iconv_close)
- [SDL_iconv_open](SDL_iconv_open)
- [SDL_isalnum](SDL_isalnum)
- [SDL_isalpha](SDL_isalpha)
- [SDL_isblank](SDL_isblank)
- [SDL_iscntrl](SDL_iscntrl)
- [SDL_isdigit](SDL_isdigit)
- [SDL_isgraph](SDL_isgraph)
- [SDL_islower](SDL_islower)
- [SDL_isprint](SDL_isprint)
- [SDL_ispunct](SDL_ispunct)
- [SDL_isspace](SDL_isspace)
- [SDL_isupper](SDL_isupper)
- [SDL_isxdigit](SDL_isxdigit)
- [SDL_itoa](SDL_itoa)
- [SDL_lltoa](SDL_lltoa)
- [SDL_log](SDL_log)
- [SDL_log10](SDL_log10)
- [SDL_log10f](SDL_log10f)
- [SDL_logf](SDL_logf)
- [SDL_lround](SDL_lround)
- [SDL_lroundf](SDL_lroundf)
- [SDL_ltoa](SDL_ltoa)
- [SDL_malloc](SDL_malloc)
- [SDL_memcmp](SDL_memcmp)
- [SDL_memcpy](SDL_memcpy)
- [SDL_memcpy4](SDL_memcpy4)
- [SDL_memmove](SDL_memmove)
- [SDL_memset](SDL_memset)
- [SDL_memset4](SDL_memset4)
- [SDL_pow](SDL_pow)
- [SDL_powf](SDL_powf)
- [SDL_qsort](SDL_qsort)
- [SDL_realloc](SDL_realloc)
- [SDL_round](SDL_round)
- [SDL_roundf](SDL_roundf)
- [SDL_scalbn](SDL_scalbn)
- [SDL_scalbnf](SDL_scalbnf)
- [SDL_setenv](SDL_setenv)
- [SDL_sin](SDL_sin)
- [SDL_sinf](SDL_sinf)
- [SDL_snprintf](SDL_snprintf)
- [SDL_sqrt](SDL_sqrt)
- [SDL_sqrtf](SDL_sqrtf)
- [SDL_sscanf](SDL_sscanf)
- [SDL_strcasecmp](SDL_strcasecmp)
- [SDL_strcasestr](SDL_strcasestr)
- [SDL_strchr](SDL_strchr)
- [SDL_strcmp](SDL_strcmp)
- [SDL_strdup](SDL_strdup)
- [SDL_strlcat](SDL_strlcat)
- [SDL_strlcpy](SDL_strlcpy)
- [SDL_strlen](SDL_strlen)
- [SDL_strlwr](SDL_strlwr)
- [SDL_strncasecmp](SDL_strncasecmp)
- [SDL_strncmp](SDL_strncmp)
- [SDL_strrchr](SDL_strrchr)
- [SDL_strrev](SDL_strrev)
- [SDL_strstr](SDL_strstr)
- [SDL_strtod](SDL_strtod)
- [SDL_strtokr](SDL_strtokr)
- [SDL_strtol](SDL_strtol)
- [SDL_strtoll](SDL_strtoll)
- [SDL_strtoul](SDL_strtoul)
- [SDL_strtoull](SDL_strtoull)
- [SDL_strupr](SDL_strupr)
- [SDL_tan](SDL_tan)
- [SDL_tanf](SDL_tanf)
- [SDL_tolower](SDL_tolower)
- [SDL_toupper](SDL_toupper)
- [SDL_trunc](SDL_trunc)
- [SDL_truncf](SDL_truncf)
- [SDL_uitoa](SDL_uitoa)
- [SDL_ulltoa](SDL_ulltoa)
- [SDL_ultoa](SDL_ultoa)
- [SDL_utf8strlcpy](SDL_utf8strlcpy)
- [SDL_utf8strlen](SDL_utf8strlen)
- [SDL_utf8strnlen](SDL_utf8strnlen)
- [SDL_vasprintf](SDL_vasprintf)
- [SDL_vsnprintf](SDL_vsnprintf)
- [SDL_vsscanf](SDL_vsscanf)
- [SDL_wcscasecmp](SDL_wcscasecmp)
- [SDL_wcscmp](SDL_wcscmp)
- [SDL_wcsdup](SDL_wcsdup)
- [SDL_wcslcat](SDL_wcslcat)
- [SDL_wcslcpy](SDL_wcslcpy)
- [SDL_wcslen](SDL_wcslen)
- [SDL_wcsncasecmp](SDL_wcsncasecmp)
- [SDL_wcsncmp](SDL_wcsncmp)
- [SDL_wcsstr](SDL_wcsstr)
- [_SDL_size_add_overflow_builtin](_SDL_size_add_overflow_builtin)
- [_SDL_size_mul_overflow_builtin](_SDL_size_mul_overflow_builtin)

