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From: gianni@mariani.ws To: gcc-gnats@gcc.gnu.org Subject: c++/10514: incorrect parsing of template instatiation with pointer-to-member variables Date: Sun, 27 Apr 2003 15:36:00 -0000 [thread overview] Message-ID: <20030427153139.1646.qmail@sources.redhat.com> (raw) >Number: 10514 >Category: c++ >Synopsis: incorrect parsing of template instatiation with pointer-to-member variables >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Sun Apr 27 15:36:00 UTC 2003 >Closed-Date: >Last-Modified: >Originator: gianni@mariani.ws >Release: gcc 3.2.1 >Organization: >Environment: Linux X86 RH 7.2 >Description: The lines in question (see listing below) are: i_1->A::TFUNC_A<w_a,w_b>( m_b1 ); i_1->TFUNC_A<w_a,w_b>( m_b1 ); // compiler trubbell without the A:: it seems like it fails to parse. side notes: Apparently MSVC++ 7.0 and Borland compiles it fine confirmed by Rob Williscroft on news:comp.lang.c++ MSVC++ 6.0sp5 dumps an internal compiler error. On the code below GCC 3.2.1 gives the following message: g++ tt2.cpp -o tt2 tt2.cpp: In member function `void Zoo::B::TFUNC_B(Zoo::A*) [with Zoo::A*Zoo::A::*w_a = &Zoo::A::m_mem1, Zoo::A*Zoo::B::*w_b = &Zoo::B::m_b1]': tt2.cpp:68: instantiated from here tt2.cpp:54: invalid use of member (did you forget the `&' ?) tt2.cpp:54: comparison between distinct pointer types `Zoo::A*Zoo::B::*' and ` Zoo::A*' lacks a cast make: *** [tt2] Error 1 class Zoo { public: class B; class A { public: A * m_mem1; A * m_mem2; template < A * A::* w_a, A * B::* w_b > void TFUNC_A( A * i_1 ) { i_1->*w_a = i_1; } typedef void ( A::* F_TA )( A * i_1 ); }; class B { public: A * m_b1; A * m_b2; typedef void ( B::* F_TB )( A * i_1 ); template < A * A::* w_a, A * B::* w_b > void TFUNC_B( A * i_1 ) { static const A::F_TA gg = ( & A::TFUNC_A<w_a,w_b> ); ( i_1->*gg )( m_b1 ); i_1->A::TFUNC_A<w_a,w_b>( m_b1 ); i_1->TFUNC_A<w_a,w_b>( m_b1 ); // compiler trubbel } void Fooey( A * i_1 ) { // static A * A::* const l_mem1 = &A::m_mem1; // static A * B::* const l_b1 = &B::m_b1; // this->TFUNC_B< l_mem1, l_b1 >( i_1 ); // static const F_TB gg = &B::TFUNC_B< l_mem1, l_b1 >; // static const F_TB gg = &B::TFUNC_B< (&A::m_mem1), (&B::m_b1) >; // (this->*gg)( i_1 ); this->TFUNC_B< &A::m_mem1, &B::m_b1 >( i_1 ); } }; }; int main() { Zoo::A a[1]; Zoo::B b[1]; b->Fooey( a ); return 0; } >How-To-Repeat: compile code in description >Fix: >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2003-04-27 15:36 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2003-04-27 15:36 gianni [this message] 2003-04-28 13:56 reichelt 2003-05-16 1:22 giovannibajo
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