Hi,
On 11/14/2012 10:27 PM, François Dumont wrote:
We do not cache if the following conditions are all met:
- key type is an integral
- hash functor is empty and not final
- hash functor doesn't throw
Can somebody remind me why *exactly* we have a condition having to do
with the empty-ness of the functor? I don't really understand it (and
it's always tricky vs final). Otherwise I think we are coming to the
conclusion that we could simply keep only the last condition possibly
with the string (and wstring, etc) special cases for std::hash
specializations + documentation explaining that the user can direct the
behavior wrt caching via noexcept on the call operator.
Paolo.
