explain_strndup_or_die - duplicate a string and report errors

       libexplain version 1.4
       Copyright (C) 2009 Peter Miller

                                                                                       explain_strndup_or_die(3)

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

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

       data    The data, exactly as to be passed to the strndup(3) system call.

       data_size
               The data_size, exactly as to be passed to the strndup(3) system call.

       The explain_strndup_or_die function is intended to be used in a fashion similar to the following example:
              char *result = explain_strndup_or_die(data, data_size);

       explain_strndup_or_die - duplicate a string and report errors

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

       The explain_strndup_on_error function always returns the value return by the  wrapped  strndup(3)  system
       call.

strndup(3)
               duplicate a string

       explain_strndup(3)
               explain strndup(3) errors

       exit(2) terminate the calling process

       #include <libexplain/strndup.h>
       char *explain_strndup_or_die(const char *data, size_t data_size);
       char *explain_strndup_on_error(const char *data, size_t data_size);