atol or atoll Subroutine
Purpose
Converts a string to a long integer.
Syntax
#include <stdlib.h>
long long atoll (nptr)
const char *nptr;
long atol (nptr)
const char *nptr;Description
The atoll and atol subroutines
(str) are equivalent to strtoll(nptr, (char **)NULL,
10) and strtol(nptr, (char **)NULL, 10),
respectively. If the value cannot be represented, the behavior is
undefined.
Parameters
| Item | Description |
|---|---|
| nptr | Points to the string to be converted into a long integer. |
Return Values
The atoll and atol subroutines return the converted value if the value can be represented.