[Bug c++/57694] New: [c++11] constexpr constructor do not work with const address of own member

[lts-rudolph at gmx dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57694

            Bug ID: 57694
           Summary: [c++11] constexpr constructor do not work with const
                    address of own member
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: lts-rudolph at gmx dot de

The following code results in
error: field initializer is not constant



class A
{   
    private:
        int a;
        const int* const aptr;

    public:
        constexpr A( int _a):
            a(_a)
           , aptr( &a)           // why aptr could not be initialized? 
    {}  
};  

class Data { } d1; 

class B
{   
    private:
        Data* dptr1;

    public:
        constexpr B(Data* _p): dptr1( _p) {}

};  

class Use 
{   
    static constexpr A a{2};   // fail! error: field initializer is not
constant
    static constexpr B b{&d1}; // works
};