explain_strtod_or_die - convert string to number and report errors

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                        explain_strtod_or_die(3)

       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.

       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);

       explain_strtod_or_die - convert string to number and report errors

       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.

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

       explain_strtod(3)
               explain strtod(3) errors

       exit(2) terminate the calling process

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