C++ program will not complie

The following simple program will not compile:

#include <map>
     2
     3 using namespace std;
     4 ^M
     5 template<class T, class A>
     6 void ShowMap(const map<T, A>& v)
     7 {
     8    map<T, A>::const_iterator ci = v.begin();
     9    return;
    10
    11 }

The compiler produces the following error message;

g++ program.cpp -o Program
2 program.cpp: In function ‘void ShowMap(const std::map<t,>&)’:
3 program.cpp:8:4: error: need ‘typename’ before ‘std::map<t,>::const_iterator’ because ‘std::map<t,>’ is a dependent scope
4 program.cpp:8:30: error: expected ‘;’ before ‘ci’
5 make: *** [Program] Error 1
~
Can anyone explain the problem to me?

Thank you very much

TCNM

Tags: C++