isgraph

Synopsis

#include <ctype.h>

int isgraph(int c);

Status

Implemented

Conformance

IEEE Std 1003.1-2017

Description

The isgraph() functions shall test whether c is a character of class graph in the current locale.

The c argument is an int, the value of which the application shall ensure is a character representable as an unsigned char or equal to the value of the macro EOF. If the argument has any other value, the behavior is undefined.

Return value

The isgraph() function shall return non-zero if c is a character with a visible representation, otherwise shall return 0.

Errors

No errors are defined.

Tests

Tested

Known bugs

None