What is wrong in this code?
这段代码有什么问题?
#include <map>template<typename T>struct TMap{ typedef std::map<T, T> Type;};template<typename T>T test(typename TMap <T>::Type &tmap_) { return 0.0; }int _tmain(int argc, _TCHAR* argv[]){ TMap<double>::Type tmap; tmap[1.1] = 5.2; double d = test(tmap); //Error: could not deduce template argument for T return 0;}#inc
