digittoint
- convert a numeric character to its integer value
LIBRARY
Lb libc
SYNOPSIS
#include <ctype.h> int
digittoint (int c);
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.
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.
