[Bug c++/37911] New: Operator= called on a non constructed object.

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

If I compile this code:
(g++ -o element element.cpp)

#include <iostream>
#include <string>

using namespace std;


class element
{
public:
    element()
    {
        cout << "element() = " << this << endl;
    }
    element(const element &e)
    {
        cout << "element(const element &e="<< &e << ") = " << this << endl;
    }
    ~element()
    {
        cout << "~element() = " << this << endl;
    }
    element &operator=(const element &e)
    {
        cout << "operator=(const element &e="<< &e << ") = " << this << endl;
    }
    string getString() {return a;}
private:
    string a;
};

element parse()
{
    element aelement;
    return aelement;
}

element parse2()
{
    element aelement;
    return aelement;
}

bool toto=true;

int main()
{
    element el = toto ? el = parse() : parse2();
    return 0;
}



It compiles without warning or error.

However, the result is:
element() = 0xfeffc680
operator=(const element &e=0xfeffc680) = 0xfeffc67c
element(const element &e=0x8049ea8) = 0xfeffc67c
~element() = 0xfeffc680
~element() = 0xfeffc67c


You can see that operator= is called on a object of address 0xfeffc67c before
this object is constructed.

Regards,
Jean-Baptiste


-- 
           Summary: Operator= called on a non constructed object.
           Product: gcc
           Version: 4.0.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: wonsjb at gmail dot com
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37911