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From: Sai-Lai Lo <s.lo@uk.research.att.com> To: gcc-gnats@gcc.gnu.org Subject: c++/3290: SEGV in the ctor of a complex multiple inherited class Date: Wed, 20 Jun 2001 06:46:00 -0000 [thread overview] Message-ID: <200106201341.OAA21499@neem.uk.research.att.com> (raw) >Number: 3290 >Category: c++ >Synopsis: SEGV in the ctor of a complex multiple inherited C++ class >Confidential: no >Severity: critical >Priority: medium >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Wed Jun 20 06:46:03 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Sai Lai Lo >Release: 3.0 >Organization: AT&T Laboratories- Cambridge >Environment: System: Linux neem.uk.research.att.com 2.4.3patched #3 SMP Tue Apr 3 16:32:03 BST 2001 i686 unknown Architecture: i686 host: i686-pc-linux-gnu build: i686-pc-linux-gnu target: i686-pc-linux-gnu configured with: ../configure --prefix=/usr/local/gcc --enable-threads=posix --enable-languages=c++ >Description: >How-To-Repeat: The following simple test code can reproduce the problem: // compile and run, output as follows // % ./t // C_5 // B_5 // B_4 // D_4 // A_3 // C_4 // A_4 // B_3 // C_3 // zsh: segmentation fault (core dumped) ./t #include <iostream.h> class C_5 { public: C_5() { cerr << "C_5" << endl; } }; class B_5 : public virtual C_5 { public: B_5() { cerr << "B_5" << endl; } }; class C_4 { public: C_4() { cerr << "C_4" << endl; } }; class B_4 : public virtual B_5 { public: B_4() { cerr << "B_4" << endl; } }; class A_4 : public virtual C_4, public virtual B_5 { public: A_4() { cerr << "A_4" << endl; } }; class D_4 : public virtual C_5 { public: D_4() { cerr << "D_4" << endl; } }; class A_3 : public virtual B_4, public virtual D_4 { public: A_3() { cerr << "A_3" << endl; } }; class B_3 : public virtual A_4, public virtual B_4 { public: B_3() { cerr << "B_3" << endl; } }; class C_3 : public virtual C_4, public virtual D_4 { public: C_3() { cerr << "C_3" << endl; } }; class A_2 : public virtual A_3, public virtual B_3, public virtual C_3 { public: A_2() { cerr << "A_2" << endl; } }; class A_1 : public virtual A_2 { public: A_1() { cerr << "A_1" << endl; } }; int main(int, char**) { A_1 a1; return 0; } >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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