Question

I am working on one of the project which requires

class MyObj;

map<string, MyObj*> myMap;

Here logic is here to map file name to MyObj class.

If I try to insert following

string strFilename = "MyFile";
MyObj* pObj  = new MyObj();

myMap.insert(strFileName, pObj); // This line throwing following error.

no matching function for call to 'std::map<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, void*, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<const std::basic_string<char, std::char_traits<char>, std::allocator<char> >, void*> > >::insert(std::string&, void*)'

Can any one please help me how to solve this. Are is there better way we can do this using STL

Answer 1

I’ve typedef’d this stuff to make it more readable…

typedef std::map<std::string, MyObj*> MyMap;
typedef std::pair<std::string, MyObj*> MyPair;

MyMap myMap;
string strFilename = "MyFile";
MyObj* pObj = new MyObj();
myMap.insert(MyPair(strFilename, pObj));