CTYPE_L(3)             FreeBSD Library Functions Manual             CTYPE_L(3)

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
     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
     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.

FreeBSD 13.1-RELEASE-p6          March 6, 2012         FreeBSD 13.1-RELEASE-p6