NAME
digittoint,
digittoint_l —
convert a numeric character to its
integer value
LIBRARY
library “libc”
SYNOPSIS
#include
<ctype.h>
int
digittoint(int
c);
#include <ctype.h>
#include <xlocale.h>
int
digittoint_l(int
c, locale_t
loc);
DESCRIPTION
Thedigittoint()
function converts a numeric character to its corresponding integer value. The
character can be any decimal digit or hexadecimal digit. With hexadecimal
characters, the case of the values does not matter.
The
digittoint_l()
function takes an explicit locale argument, whereas the
digittoint() function use the current global or
per-thread locale.
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.