NAME

       explain_strtod_or_die - convert string to number and report errors

SYNOPSIS

       #include <libexplain/strtod.h>
       double explain_strtod_or_die(const char *nptr, char **endptr);
       double explain_strtod_on_error(const char *nptr, char **endptr))

DESCRIPTION

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

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

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

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

RETURN VALUE

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

       The explain_strtod_on_error function always  returns  the  value  return  by  the  wrapped
       strtod(3) system call.

EXAMPLE

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

SEE ALSO

       strtod(3)
               convert ASCII string to floating‐point number

       explain_strtod(3)
               explain strtod(3) errors

       exit(2) terminate the calling process

COPYRIGHT

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                         explain_strtod_or_die(3)