isgraph.c File Reference

#include <ctype.h>

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Functions
int	isgraph (int c)
	Checks if the given character has a graphical representation. More...

Function Documentation

isgraph()

int isgraph

(

int

ch

)

Checks if the given character has a graphical representation.

Checks if the given character has a graphical representation using the default locale. The following characters are graphical:

• number (0123456789)
• uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ)
• letter (abcdefghijklmnopqrstuvwxyz)
• punctuation character (!"#$%&'()*+,-./:;<=>?@[]^_`{|}~)

The behavior is undefined if the value of ch is not representable as unsigned char and is not equal to EOF.

Parameters

ch	The character to classify

Returns

Non-zero value if the character has a graphical representation character, zero otherwise.

Definition at line 5 of file isgraph.c.

{
    return (unsigned)c - 0x21 < 0x5e;
}

Referenced by ispunct().

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