isxdigit.c File Reference

#include <ctype.h>

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Functions
int	isxdigit (int c)
	Checks if the given character is a hexadecimal numeric character. More...

Function Documentation

isxdigit()

int isxdigit

(

int

ch

)

Checks if the given character is a hexadecimal numeric character.

Checks if the given character is a hexadecimal numeric character (0123456789).

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 is an hexadecimal numeric character, zero otherwise.

Definition at line 5 of file isxdigit.c.

{
    return isdigit(c) || ((unsigned)c | 32) - 'a' < 6;
}

References isdigit().