Constructor is private within this context for gcc 3.0.3

Constructor is private within this context for gcc 3.0.3

[Jacek Sokulski]

I encountered a problem with private constructors in the following code:

class Input
{

public:

        explicit
        Input() {};
        Input(const char* Id) {};
        void test(const Input& xs){}
private:
        Input(const Input&);
};
int
main()
{
    Input input;
    input.test(input);// This is OK.
    input.test("abc"); // Here we have the problem!
    return 0;
}

Previous version (2.96) of gcc compiles it without problems but 3.0.3
outputs the error message:

test_gcc.cc: In function `int main()':
test_gcc.cc:11: `Input::Input(const Input&)' is private
test_gcc.cc:18: within this context
test_gcc.cc:18:   initializing argument 1 of `void Input::test(const
Input&)'
   from result of `Input::Input(const char*)'

Can anyone help me?
Jacek

Re: Constructor is private within this context for gcc 3.0.3

[Claudio Bley]

>>>>> "Jacek" == Jacek Sokulski <jacek@lefthand.com.pl> writes:

    Jacek> I encountered a problem with private constructors in the
    Jacek> following code: class Input {

    Jacek> public:

    Jacek>         explicit Input() {}; Input(const char* Id) {}; void
    Jacek> test(const Input& xs){} private: Input(const Input&); };
    Jacek> int main() { Input input; input.test(input);// This is OK.
    Jacek> input.test("abc"); // Here we have the problem!  return 0;
    Jacek> }

    Jacek> Previous version (2.96) of gcc compiles it without problems
    Jacek> but 3.0.3 outputs the error message:

    Jacek> test_gcc.cc: In function `int main()': test_gcc.cc:11:
    Jacek> `Input::Input(const Input&)' is private test_gcc.cc:18:
    Jacek> within this context test_gcc.cc:18: initializing argument 1
    Jacek> of `void Input::test(const Input&)' from result of
    Jacek> `Input::Input(const char*)'

    Jacek> Can anyone help me?  Jacek

Sorry, I can't help you here. I can only say your code compiles fine
for me with gcc v3.0.3.

Claudio

Re: Constructor is private within this context for gcc 3.0.3

[sumesh]

Hi
      Iam looking at the alias analysis done by GCC . Can any one tell me if
there is any option gcc has using which i can obtain the  output of alias
analysis of a program .
       Also any pointers on what kind of alias analysis does gcc use ,its
algorithm??


sumesh
----- Original Message -----
From: "Jacek Sokulski" <jacek@lefthand.com.pl>
To: <gcc-help@gcc.gnu.org>
Sent: Tuesday, January 29, 2002 6:41 AM
Subject: Constructor is private within this context for gcc 3.0.3


> I encountered a problem with private constructors in the following code:
>
> class Input
> {
>
> public:
>
>         explicit
>         Input() {};
>         Input(const char* Id) {};
>         void test(const Input& xs){}
> private:
>         Input(const Input&);
> };
> int
> main()
> {
>     Input input;
>     input.test(input);// This is OK.
>     input.test("abc"); // Here we have the problem!
>     return 0;
> }
>
> Previous version (2.96) of gcc compiles it without problems but 3.0.3
> outputs the error message:
>
> test_gcc.cc: In function `int main()':
> test_gcc.cc:11: `Input::Input(const Input&)' is private
> test_gcc.cc:18: within this context
> test_gcc.cc:18:   initializing argument 1 of `void Input::test(const
> Input&)'
>    from result of `Input::Input(const char*)'
>
> Can anyone help me?
> Jacek
>
>