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
