[Bug c++/41002] New: Redundant diagnostic when class member function's name overlaps with class field's name

[b0ntrict0r at yandex dot ru]

Compiling following code [1] in the following way [2] with gcc 4.3.3 leads to
the diagnostics [3].

To my mind statement
  test.cpp: In constructor 'testclass::testclass()':
  test.cpp:4: error: class 'testclass' does not have any field named 'number'
is redundant because statements
  test.cpp:15: error: declaration of 'int testclass::number'
  test.cpp:9: error: conflicts with previous declaration 'int
testclass::number() const'
that appear before already cover this case. We already have a member named
'number' so we certainly can't have field with the same name. Diagnostic claims
that a member 'number' already exist and field with that name cannot be created
seems to be more reasonable here, but "test.cpp:15" and "test.cpp:9" already
said that.

[1]
class testclass
{
public:
    testclass() : number(4)
    {
    }

    int
    number() const
    {
        return number;
    }

private:
    int number;
};

int
main()
{
    testclass ts;
    (void)ts.number();
    return 0;
}

[2]
% gcc -o test test.cpp

[3]
test.cpp:15: error: declaration of 'int testclass::number'
test.cpp:9: error: conflicts with previous declaration 'int testclass::number()
const'
test.cpp: In constructor 'testclass::testclass()':
test.cpp:4: error: class 'testclass' does not have any field named 'number'
test.cpp: In member function 'int testclass::number() const':
test.cpp:11: error: argument of type 'int (testclass::)()const' does not match
'int'


Besides I found it interesting that swapping public: and private: blocks around
makes diagnostic even more unclear:
test.cpp:14: error: declaration of 'int testclass::number() const'
test.cpp:3: error: conflicts with previous declaration 'int testclass::number'
test.cpp: In constructor 'testclass::testclass()':
test.cpp:6: error: class 'testclass' does not have any field named 'number'
test.cpp: In member function 'int testclass::number() const':
test.cpp:13: error: argument of type 'int (testclass::)()const' does not match
'int'


-- 
           Summary: Redundant diagnostic when class member function's name
                    overlaps with class field's name
           Product: gcc
           Version: 4.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: b0ntrict0r at yandex dot ru
 GCC build triplet: x86_64-pc-linux-gnu
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41002