2 Apr
2005
2 Apr
'05
3:23 p.m.
* boost::hash derived from std::unary_function
This introduces a completely unnecessary dependency on <functional>. boost::hash only needs to define result_type and argument_type.
As far as the TR is concerned it's a requirement for std::tr1::hash to derive from std::unary_function, there's no leeway permitted. John.