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atoi, atol
[string to integer]

SYNOPSIS
#include <stdlib.h>
int atoi(const char *s);
long atol(const char *s);

DESCRIPTION
atoi converts the initial portion of a string to an int. atol converts the initial portion of a string to a long.

atoi(s) is implemented as (int)strtol(s, NULL, 10). atol(s) is implemented as strtol(s, NULL, 10).

RETURNS
The functions return the converted value, if any. If no conversion was made, 0 is returned.

COMPLIANCE
atoi is ANSI.

No supporting OS subroutines are required.