[boost] [range] boost::end("hello") is sub-optimal

There is a bug in Boost.Range that is causing boost::end() to execute a slower code path when called with a string literal. The type of "hello" is char const [6], and end() should be O(1). Indeed, Boost.Range has code to handle just this case, but it never gets called. The problem is the way overload resolution happens between these two functions template< typename T, std::size_t sz > const T* boost_range_end( const T (&array)[sz] ) const char* boost_range_end( const char* s ) The first is O(1) and the second is O(N) becuase it calls strlen. But the second will always be chosen because non-templates are preferred over templates. -- Eric Niebler Boost Consulting www.boost-consulting.com