[Bug c++/42470] New: Conversion Constructor not accepted/recognized

["Curatica at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

The C++ code:

#include <iostream>
using namespace std;
class Base
{
        int     i;

public:

        Base(): i( -1 ) { cout << "Base()" << endl; }
        Base( int a ) : i( a ) { cout << "Base(int), i: " << i << endl; }
        Base( Base& b ) { i = b.i; cout << "Base(Base&), i: " << i << endl; }
        Base& operator = ( Base& b )
        {
                i = b.i;
                cout << "Base::operator =(), i: " << i << endl;
                return *this;
        }
        virtual ~Base(){}
        operator int() { cout << "Base::operator int()" << endl; return i; }
};
void test1()
{
        cout << endl << "Example 1" << endl;
        Base b1;
        cout << "b1: " << b1 << endl;

        cout << endl << "Example 2" << endl;
        Base b2 = 5;
        cout << "b2: " << b2 << endl;

        cout << endl << "Example 3" << endl;
        Base b3(6);
        cout << "b2: " << b3 << endl;

        cout << endl << "Example 4" << endl;
        Base b4 = b1;
        cout << "b4: " << b4 << endl;

        cout << endl << "Example 5" << endl;
        Base b5; b5 = b2;
        cout << "b5: " << b5 << endl;
}
int main( int argc, char** argv )
{
        test1();
}
/////////////////////////////////////////////////////

The compile command:

    g++ construction.cc -o construction

Compilation errors:

construction.cc: In function 'void test1()':
construction.cc:28: error: no matching function for call to 'Base::Base(Base),
construction.cc:11: note: candidates are: Base::Base(Base&)
construction.cc:10: note:                 Base::Base(int)
construction.cc:28: error:   initializing temporary from result of
'Base::Base(int)'

We believe that         

      Base b2 = 5;

should call Base::Base( int ). The same code compiles and executes fine under
Microsoft Visual Studio.


-- 
           Summary: Conversion Constructor not accepted/recognized
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Curatica at gmail dot com
 GCC build triplet: What is this?
  GCC host triplet: Not sure what this means; here is the result of uname -
                    a: Linux
GCC target triplet: What is this?


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42470