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From: "igodard at pacbell dot net" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/37811] New: bind1st fails on mem_fun with reference argument Date: Sun, 12 Oct 2008 18:54:00 -0000 [thread overview] Message-ID: <bug-37811-6594@http.gcc.gnu.org/bugzilla/> (raw) [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 2845 bytes --] This code: #include <functional> class Foo { public: void F(int i) {} void G(int& i) {} void H(int* i) {} }; void bar () { Foo f; Foo* fs; std::mem_fun(&Foo::F); std::mem_fun(&Foo::G); std::mem_fun(&Foo::H); std::bind1st(std::mem_fun(&Foo::F), fs); std::bind1st(std::mem_fun(&Foo::G), fs); std::bind1st(std::mem_fun(&Foo::H), fs); std::bind1st(std::mem_fun_ref(&Foo::F), f); std::bind1st(std::mem_fun_ref(&Foo::G), f); std::bind1st(std::mem_fun_ref(&Foo::H), f); } compiles on Comeau. On gcc it gets you: /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.3.1/../../../../include/c++/4.3.1/backward/binders.h: In instantiation of std::binder1st<std::mem_fun1_t<void, Foo, int&> >: foo.cc:16: instantiated from here /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.3.1/../../../../include/c++/4.3.1/backward/binders.h:120: error: typename _Operation::result_type std::binder1st<_Operation>::operator()(typename _Operation::second_argument_type&) const [with _Operation = std::mem_fun1_t<void, Foo, int&>] cannot be overloaded /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.3.1/../../../../include/c++/4.3.1/backward/binders.h:114: error: with typename _Operation::result_type std::binder1st<_Operation>::operator()(const typename _Operation::second_argument_type&) const [with _Operation = std::mem_fun1_t<void, Foo, int&>] /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.3.1/../../../../include/c++/4.3.1/backward/binders.h: In instantiation of std::binder1st<std::mem_fun1_ref_t<void, Foo, int&> >: foo.cc:19: instantiated from here /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.3.1/../../../../include/c++/4.3.1/backward/binders.h:120: error: typename _Operation::result_type std::binder1st<_Operation>::operator()(typename _Operation::second_argument_type&) const [with _Operation = std::mem_fun1_ref_t<void, Foo, int&>] cannot be overloaded /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.3.1/../../../../include/c++/4.3.1/backward/binders.h:114: error: with typename _Operation::result_type std::binder1st<_Operation>::operator()(const typename _Operation::second_argument_type&) const [with _Operation = std::mem_fun1_ref_t<void, Foo, int&>] Note that only the member functions with a reference parameter fail; pass by value and pass by pointer are accepted. -- Summary: bind1st fails on mem_fun with reference argument Product: gcc Version: 4.3.1 Status: UNCONFIRMED Severity: major Priority: P3 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: igodard at pacbell dot net http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37811
next reply other threads:[~2008-10-12 18:54 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2008-10-12 18:54 igodard at pacbell dot net [this message] 2008-10-13 8:45 ` [Bug libstdc++/37811] " paolo dot carlini at oracle dot com 2008-10-13 15:20 ` igodard at pacbell dot net 2008-10-13 15:28 ` paolo dot carlini at oracle dot com 2008-10-13 16:07 ` igodard at pacbell dot net 2008-10-13 16:24 ` paolo dot carlini at oracle dot com 2008-10-13 17:03 ` igodard at pacbell dot net 2008-10-13 17:14 ` paolo dot carlini at oracle dot com 2008-10-13 17:56 ` igodard at pacbell dot net 2008-10-13 19:09 ` paolo dot carlini at oracle dot com
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