=====atol=====
Syntax:

<code>
    #include <cstdlib>
    long atol( const char *str );
</code>
The function atol() converts str into a long, then returns that value. atol()
will read from str until it finds any character that should not be in a long.
The resulting truncated value is then converted and returned. For example,

<code>
     x = atol( "1024.0001" );
</code>
results in x being set to 1024L.

Related Topics: [[atof]], [[atoi]], [[c/io/sprintf]], [[strtol]]