id summary reporter owner description type status milestone component version severity resolution keywords cc 8892 C++11 constructor flat_map( const Allocator& alloc ) Markus Mathes Ion Gaztañaga "C++11 introduced new constructors for std::map. To use boost map and flat_map as direct replacement it would be nice to have the same interface as provided by C++11 std:map. Thus the request for the constructor explicit (flat_)map( const Allocator& alloc ); " Feature Requests closed To Be Determined container Boost 1.54.0 Optimization fixed