atoll

Syntax

#include <stdlib.h> long long int atoll(const char *string);

Description

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

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

Return Value

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

Portability

ANSI/ISO C	C99; not C89
POSIX	1003.1-2001; not 1003.2-1992

Example

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