C2955 'std::map' use of class template requires templat

代码：
std::map<int,int> bad blocks;
bad_blocks.clear();
bad_blocks.insert(std::map::value_type(1,50);
报错：C2955 “std::map” use of class template requires template argument list
这个怎么解决？谢谢！

解决方案

	std::map<int,int> bad_blocks;
	bad_blocks.clear();
	bad_blocks.insert(std::map<int,int>::value_type(1,50));

或

	std::map<int,int> bad_blocks;
	bad_blocks.clear();
	bad_blocks.insert(std::make_pair(1,50));