NAME

atol — convert ASCII string to long integer

LIBRARY

Standard C Library (libc, -lc)

SYNOPSIS

#include <stdlib.h>

long
atol(const char *nptr);

DESCRIPTION

The atol() function converts the initial portion of the string pointed to by nptr to long integer representation.

It is equivalent to:

strtol(nptr, (char **)NULL, 10);

SEE ALSO

atof(3), atoi(3), strtod(3), strtol(3), strtoul(3)

STANDARDS

The atol() function conforms to ANSI X3.159-1989 (“ANSI C89”).