ft_isalnum.c File Reference

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Functions
int	ft_isalnum (int c)
	Checks whether a character is alphanumeric.

Function Documentation

ft_isalnum()

int ft_isalnum

(

int

c

)

Checks whether a character is alphanumeric.

Parameters

c	Character value to test.

Returns

Non-zero if c is a letter or a digit, 0 otherwise.

Definition at line 19 of file ft_isalnum.c.

{
    return (((unsigned int)(c - '0') < 10)
        || ((unsigned int)((c | 32) - 'a') < 26));
}