Convert strings of ASCII characters to the appropriate numeric
    values. atoll is a synonym for atoq.

    This function is supported on OpenVMS Integrity servers and
    Alpha only.

    Format

      #include  <stdlib.h>

      __int64 atoq  (const char *nptr);

      __int64 atoll  (const char *nptr);

1  –  Argument

 nptr

    A pointer to the character string to be converted to a numeric
    value.

2  –  Description

    The atoq (or atoll) function converts the initial portion of
    a string to its decimal __int64 value. This function does not
    account for overflows resulting from the conversion. The string
    to be converted has the following format:

    [white-spaces][+|-]digits

    The function call atoq (str) is equivalent to strtoq (str,
    (char**)NULL, 10), except for the behavior on error.

3  –  Return Value

    n                  The converted value.