atol

Syntax

#include <stdlib.h>

long atol(const char *string);

Description

Convert as much of the string as possible to an equivalent long integer value.

This function is almost like strtol(string, NULL, 10) (see section strtol).

Return Value

The equivalent value, or zero if the string does not represent a number.

Example

main(int argc, char **argv)
{
  long l = atol(argv[1]);
  ...

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