Convert a character string to a value of type long.

This function is compatible with the following targets:

ANSI

BeOS

EMB/RTOS

Mac OS

Palm OS

Win32

#include <stdlib.h>

long int atol(const char *nptr);

Parameters for this facility are:

nptr

const char *

The string to be converted

The atol() function converts the character array pointed to by nptr to an integer of type long int.

This function skips leading white space characters.

This function sets the global variable errno to ERANGE if the converted value cannot be expressed as a value of type long int.

atol() returns an integer value of type long int.

"atof"

"atoi"

"errno"

"scanf"