ctype(3) [osx man page]

CTYPE(3)						   BSD Library Functions Manual 						  CTYPE(3)

NAME

     digittoint, isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, ishexnumber, isideogram, islower, isnumber, isphonogram, isprint,
     ispunct, isrune, isspace, isspecial, isupper, isxdigit, toascii, tolower, toupper -- character classification macros

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <ctype.h>

     int
     digittoint(int c);

     int
     isalnum(int c);

     int
     isalpha(int c);

     int
     isascii(int c);

     int
     iscntrl(int c);

     int
     isdigit(int c);

     int
     isgraph(int c);

     int
     ishexnumber(int c);

     int
     isideogram(int c);

     int
     islower(int c);

     int
     isnumber(int c);

     int
     isphonogram(int c);

     int
     isspecial(int c);

     int
     isprint(int c);

     int
     ispunct(int c);

     int
     isrune(int c);

     int
     isspace(int c);

     int
     isupper(int c);

     int
     isxdigit(int c);

     int
     toascii(int c);

     int
     tolower(int c);

     int
     toupper(int c);

DESCRIPTION

     The above functions perform character tests and conversions on the integer c.  They are available as macros, defined in the include file
     <ctype.h>, or as true functions in the C library.	See the specific manual pages for more information.

     Extended locale versions of these functions are documented in ctype_l(3).	See xlocale(3) 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), toascii(3), tolower(3), toupper(3), wctype(3),
     ascii(7), ctype_l(3)

STANDARDS

     These functions, except for digittoint(), isascii(), ishexnumber(), isideogram(), isnumber(), isphonogram(), isrune(), isspecial() and
     toascii(), conform to ISO/IEC 9899:1990 (``ISO C90'').

BSD
								  March 30, 2004							       BSD

CTYPE_L(3)						   BSD 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.

BSD
								   March 6, 2012							       BSD