[Olena] #243: Missing user-provided default constructor
#243: Missing user-provided default constructor ----------------------+----------------------------------------------------- Reporter: levill_r | Owner: Olena Team Type: defect | Status: new Priority: major | Milestone: Component: Milena | Version: 1.0 Keywords: | ----------------------+----------------------------------------------------- Compilation problem with Clang (LLVM), reported by Fabien Freling: * https://www.lrde.epita.fr/pipermail/olena-bugs/2011-April/000146.html -- Ticket URL: <https://trac.lrde.org/olena/ticket/243> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.
#243: Missing user-provided default constructor ----------------------+----------------------------------------------------- Reporter: levill_r | Owner: Olena Team Type: defect | Status: new Priority: major | Milestone: Component: Milena | Version: 1.0 Keywords: | ----------------------+----------------------------------------------------- Comment(by lazzara): Fixed in branch 'llvm-support'. Should be merged in branch 'next'. -- Ticket URL: <https://trac.lrde.org/olena/ticket/243#comment:1> Olena <http://olena.lrde.epita.fr> Olena, a generic and efficient C++ image processing library.
#243: Missing user-provided default constructor ----------------------+----------------------------------------------------- Reporter: levill_r | Owner: Olena Team Type: defect | Status: new Priority: major | Milestone: Component: Milena | Version: 1.0 Keywords: | ----------------------+----------------------------------------------------- Comment(by lazzara): This problem is also encountered with some version of g++ (4.6.1 for instance). This is not a bug. g++ did not conformed to the standard and they are fixing it. See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44499 -- Ticket URL: <https://trac.lrde.org/olena/ticket/243#comment:2> Olena <http://olena.lrde.epita.fr> Olena, a software platform dedicated to image processing.
#243: Missing user-provided default constructor ----------------------+----------------------------------------------------- Reporter: levill_r | Owner: lazzara Type: defect | Status: new Priority: major | Milestone: Component: Milena | Version: 1.0 Keywords: | ----------------------+----------------------------------------------------- Changes (by lazzara): * owner: Olena Team => lazzara Comment: GCC 4.6.2 changelog : In 4.6.0 and 4.6.1 G++ no longer allows objects of const-qualified type to be default initialized unless the type has a user-declared default constructor. In 4.6.2 G++ implements the proposed resolution of DR 253 (http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#253), so default initialization is allowed if it initializes all subobjects. Code that fails to compile can be fixed by providing an initializer e.g. struct A { A(); }; struct B : A { int i; }; const B b = B(); Use -fpermissive to allow the old, non-conforming behaviour. -- Ticket URL: <https://trac.lrde.org/olena/ticket/243#comment:3> Olena <http://olena.lrde.epita.fr> Olena, a software platform dedicated to image processing.
#243: Missing user-provided default constructor -----------------------+---------------------------------------------------- Reporter: levill_r | Owner: lazzara Type: defect | Status: closed Priority: major | Milestone: Component: Milena | Version: 1.0 Resolution: fixed | Keywords: -----------------------+---------------------------------------------------- Changes (by lazzara): * status: new => closed * resolution: => fixed Comment: The following patches fix this issue: - 2af40042f361fe4b3fd281354e5e961ab3569730 - 93ca680bd5b2d8e1291f4a542c24548828e92e7c They have been integrated into the 'next' branch. It has been decided to implement the default constructor instead of explicitly instantiate objects. Thanks to theses patches, Olena should compile with gcc 4.6.0 and 4.6.1. It also reduces the number of errors while compiling with Clang++. -- Ticket URL: <https://trac.lrde.org/olena/ticket/243#comment:4> Olena <http://olena.lrde.epita.fr> Olena, a software platform dedicated to image processing.
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