[Bug c++/39452] New: G++ cannot compile local classes together with template.

[jim_king_2000 at 163 dot com]

The following code cannot be compiled by GCC 4.3.3.



#include <iostream>
#include <algorithm>
#include <functional>


using namespace std;


int main()
{
    class PrintOne : unary_function<int, void>
    {
    public:
        result_type operator()(argument_type i)
        {
            wcout << i << L'\n';
        }
    };
    int a[20] = {0, 0, 0, 0, 0};
    for_each(a, a + 20, PrintOne());

    return 0;
}



The error message is:
test.cpp:22: error: no matching function for call to `for_each(int[20], int*,
main()::PrintOne)'


If we move class PrintOne outside or do not use template function, the
compilation will succeed.


-- 
           Summary: G++ cannot compile local classes together with template.
           Product: gcc
           Version: 4.3.4
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jim_king_2000 at 163 dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39452