NAME

digittoint — convert a numeric character to its integer value

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include < ctype.h>

int
digittoint( int c);

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 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.

SEE ALSO

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