"computed value not used" Warnings in gcc 3.1 beta

[Dylan Cuthbert]

Hello there

I get warnings from including ext/hash_map extended stl libraries.. the
warning occurs in ext/stl_hashtable.h:313 and I fixed it by doing the
following (I think)

  hashtable& operator= (const hashtable& __ht)
  {
    if (&__ht != this) {
      clear();
      (void)(_M_hash = __ht._M_hash );
      (void)(_M_equals = __ht._M_equals );
      (void)(_M_get_key = __ht._M_get_key );
      _M_copy_from(__ht);
    }
    return *this;
  }

I added the (void)'s to prevent a "computed value is not used" warning.  I
would prefer not to have to switch -Wall and -Werror off so is this the
proper way to fix this?

Also the warning/error output didn't tell me which line (or file even!) the
code was in that was invoking the above function - which makes finding the
lines involved rather difficult.

Regards


---------------------------------
Q-Games, Dylan Cuthbert.
http://www.q-games.com