NAME
digittoint_l,
isalnum_l, isalpha_l,
isascii_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
library “libc”
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
isascii_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(3), isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3), isideogram(3), islower(3), isphonogram(3), isprint(3), ispunct(3), isrune(3), isspace(3), isspecial(3), isupper(3), isxdigit(3), tolower(3), toupper(3), wctype(3), xlocale(3)
STANDARDS
These functions conform to IEEE Std 1003.1-2008
(“POSIX.1”), except for
digittoint_l(), isascii_l(),
ishexnumber_l(),
isideogram_l(),
isnumber_l(),
isphonogram_l(), isrune_l()
and isspecial_l() which are
FreeBSD extensions.