explain_strtof_or_die - convert string to number and report errors

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                        explain_strtof_or_die(3)

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

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

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

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

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

       explain_strtof_or_die - convert string to number and report errors

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

       The explain_strtof_on_error function always returns the value return  by  the  wrapped  strtof(3)  system
       call.

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

       explain_strtof(3)
               explain strtof(3) errors

       exit(2) terminate the calling process

       #include <libexplain/strtof.h>
       float explain_strtof_or_die(const char *nptr, char **endptr);
       float explain_strtof_on_error(const char *nptr, char **endptr))