isascii.c File Reference

#include <ctype.h>

Include dependency graph for isascii.c:

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Functions
int	isascii (int c)
	Checks if a given character is a 7-bit US-ASCII character. More...

Function Documentation

isascii()

int isascii

(

int

ch

)

Checks if a given character is a 7-bit US-ASCII character.

Checks if a given character 7-bit unsigned char value that fits into the ASCII character set. which is any character between 0 and 0x7f inclusive.

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 ch is a 7-bit US-ASCII character code, zero otherwise.

Definition at line 5 of file isascii.c.

{
    return !(c & ~0x7f);
}