digittoint(3) [osx man page]

DIGITTOINT(3)						   BSD Library Functions Manual 					     DIGITTOINT(3)

NAME

     digittoint, digittoint_l -- convert a numeric character to its integer value

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <ctype.h>

     int
     digittoint(int c);

     #include <xlocale.h>
     #include <ctype.h>

     int
     digittoint_l(int c, locale_t loc);

DESCRIPTION

     The digittoint() function converts a numeric character to its corresponding integer value.  The character can be any decimal digit or hexa-
     decimal digit.  With hexadecimal characters, the case of the values does not matter.

     While the digittoint() function uses the current locale, the digittoint_l() function may be passed a locale directly. See xlocale(3) for more
     information.

RETURN VALUES

     The digittoint() function always returns an integer from the range of 0 to 15.  If the given character was not a digit as defined by
     isxdigit(3), the function will return 0.

SEE ALSO

     ctype(3), isdigit(3), isxdigit(3), xlocale(3)

BSD
								   April 6, 2001							       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