isrune3
Valid character test
Usage
#include <ctype.h>
int
isrune(int c);
Library
Standard C Library (libc, -lc)
Overview
The isrune() function tests for any character that is valid in the current character set. In the ASCII character set, this is equivalent to isascii().
Return values
The isrune() function returns zero if the character tests false and returns non-zero if the character tests true.
Releases
135 releases since Mac OS X 10.4; the text changed 2 times.