atol

Converts a string to a long integer.

long atol (char * string);

Required Header
<stdlib.h>

Return Value

This function returns the long integer representation of string.

Parameters

string

  The string to be converted to a long integer

Remarks

The atol function converts string to a long integer number, where the conversion stops at the first character that is not recognisable as a number in the form:

[whitespace][sign][digits]

Standard Library

See Also    atoi, strtol, strtoll, strtoul, strtoull, strtod