NAME
digittoint_l, isalnum_l, isalpha_l, isblank_l, iscntrl_l, isdigit_l, isgraph_l, ishexnumber_l, isideogram_l, islower_l, isnumber_l, isphonogram_l, isprint_l, ispunct_l, isrune_l, isspace_l, isspecial_l, isupper_l, isxdigit_l, tolower_l, toupper_l – character classification functions
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
digittoint_l(int c, locale_t loc);
int
isalnum_l(int c, locale_t loc);
int
isalpha_l(int c, locale_t loc);
int
iscntrl_l(int c, locale_t loc);
int
isdigit_l(int c, locale_t loc);
int
isgraph_l(int c, locale_t loc);
int
ishexnumber_l(int c, locale_t loc);
int
isideogram_l(int c, locale_t loc);
int
islower_l(int c, locale_t loc);
int
isnumber_l(int c, locale_t loc);
int
isphonogram_l(int c, locale_t loc);
int
isspecial_l(int c, locale_t loc);
int
isprint_l(int c, locale_t loc);
int
ispunct_l(int c, locale_t loc);
int
isrune_l(int c, locale_t loc);
int
isspace_l(int c, locale_t loc);
int
isupper_l(int c, locale_t loc);
int
isxdigit_l(int c, locale_t loc);
int
tolower_l(int c, locale_t loc);
int
toupper_l(int c, locale_t loc);
DESCRIPTION
The above functions perform character tests and conversions on the integer c in the locale loc. They behave in the same way as the versions without the _l suffix, but use the specified locale rather than the global or per-thread locale. ⟨ctype.h⟩, or as true functions in the C library. See the specific manual pages for more information.
SEE ALSO
digittoint_l(3), isalnum_l(3), isalpha_l(3), isblank_l(3), iscntrl_l(3), isdigit_l(3), isgraph_l(3), isideogram_l(3), islower_l(3), isphonogram_l(3), isprint_l(3), ispunct_l(3), isrune_l(3), isspace_l(3), isspecial_l(3), isupper_l(3), isxdigit_l(3), tolower_l(3), toupper_l(3), wctype_l(3), xlocale_l(3)
STANDARDS
These functions conform to IEEE Std 1003.1-2008 (“POSIX.1”), except for digittoint_l(), ishexnumber_l(), isideogram_l(), isnumber_l(), isphonogram_l(), isrune_l() and isspecial_l() which are FreeBSD extensions.