atol(3)                                                         atol(3)

  atol()

  NAME

    atol() - convert ASCII string to long integer

  SYNOPSIS

    #include 

    long atol (const char *nptr)

  DESCRIPTION

    The atol(3) function converts the initial portion of the string pointed to
    by nptr to long integer representation.

    It is equivalent to:

    strtol(nptr, (char **)NULL, 10);

  SEE ALSO

    atof(3)

    atoi(3)

    strtod(3)

    strtol(3)

    strtoul(3)

  USAGE NOTES

    The atol function is thread safe.

    The atol function is not async-signal safe.