digittoint -- convert a numeric character to its integer value
Standard C Library (libc, -lc)
#include <ctype.h>
int
digittoint(int c);
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() 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.
isalnum(3), isalpha(3), isascii(3), iscntrl(3), isdigit(3), isgraph(3),
islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3),
stdio(3), tolower(3), toupper(3), ascii(7)
FreeBSD 5.2.1 April 6, 2001 FreeBSD 5.2.1 [ Back ] |