NAME

       explain_strtol_or_die - convert a string to a long integer and report errors

SYNOPSIS

       #include <libexplain/strtol.h>
       long explain_strtol_or_die(const char *nptr, char **endptr, int base);
       long explain_strtol_on_error(const char *nptr, char **endptr, int base))

DESCRIPTION

       The  explain_strtol_or_die  function is used to call the strtol(3) system call. On failure an explanation
       will be printed to stderr, obtained from the explain_strtol(3) function, and then the process  terminates
       by calling exit(EXIT_FAILURE).

       The explain_strtol_on_error function is used to call the strtol(3) system call. On failure an explanation
       will be printed to stderr, obtained from the explain_strtol(3) function, but still returns to the caller.

       nptr    The nptr, exactly as to be passed to the strtol(3) system call.

       endptr  The endptr, exactly as to be passed to the strtol(3) system call.

       base    The base, exactly as to be passed to the strtol(3) system call.

RETURN VALUE

       The explain_strtol_or_die function only returns on  success,  see  strtol(3)  for  more  information.  On
       failure, prints an explanation and exits, it does not return.

       The  explain_strtol_on_error  function  always  returns  the value return by the wrapped strtol(3) system
       call.

EXAMPLE

       The explain_strtol_or_die function is intended to be used in a fashion similar to the following example:
              long result = explain_strtol_or_die(nptr, endptr, base);

SEE ALSO

       strtol(3)
               convert a string to a long integer

       explain_strtol(3)
               explain strtol(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                        explain_strtol_or_die(3)