[Bug 799066] Re: Parsing issue: Instance reinterpreted as function-pointer something

[Hendrik Lönngren]

On further thought, I see that g++ allows "A()" as a shortcut for "A(*)()", so it confuses "B b(A());" with a function declaration. As this might be as designed, I am closing this bug.
But still, I think that this code should be perfectly legal. Also, the compiler error would be much clearer if it said "B (*)(A (*)())" instead of "B(A (*)())". Overall, allowing that shortcut doesn’t seems like a good idea to me.

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https://bugs.launchpad.net/bugs/799066

Title:
  Parsing issue: Instance reinterpreted as function-pointer something

Status in “gcc-4.4” package in Ubuntu:
  Invalid

Bug description:
  Binary package hint: gcc-4.4

  When compiling the attached code with

  g++ -c -o test.o test.cpp

  I get the following error:

  test.cpp: In function ‘int main()’:
  test.cpp:15: error: request for member ‘dummy’ in ‘b’, which is of non-class type ‘B(A (*)())’

  Actually I don’t even think that is a type.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: g++-4.4 4.4.4-14ubuntu5
  ProcVersionSignature: Ubuntu 2.6.35-28.50-generic 2.6.35.11
  Uname: Linux 2.6.35-28-generic i686
  Architecture: i386
  Date: Sat Jun 18 08:54:49 2011
  ProcEnviron:
   LANGUAGE=eo
   PATH=(custom, user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: gcc-4.4

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