DIGITTOINT(3) BSD Library Functions Manual DIGITTOINT(3)NAMEdigittoint — convert a numeric character to its integer value
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <ctype.h>
int
digittoint(int c);
DESCRIPTION
The digittoint() function converts a numeric character to its correspond‐
ing integer value. The character can be any decimal digit or hexadecimal
digit. With hexadecimal characters, the case of the values does not mat‐
ter.
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 ALSOctype(3), isdigit(3), isxdigit(3)BSD April 6, 2001 BSD