Submitter-Id: net
Originator:Olly Betts
Organization: none
Confidential: no
Synopsis: Compiling the attach code causes g++ to segfault
Severity: serious
Priority: medium
Category: c++
Class: ice-on-legal-code
Release: 3.0 (Debian) (Debian testing/unstable)
Environment:
System: Linux roadkill 2.2.19 #1 Sat Jun 9 14:48:14 EST 2001 i686 unknown
Architecture: i686
host: i386-pc-linux-gnu
build: i386-pc-linux-gnu
target: i386-pc-linux-gnu
configured with: ../src/configure -v
--enable-languages=c,c++,java,f77,proto,objc --prefix=/usr
--infodir=/share/info --mandir=/share/man --enable-shared --with-gnu-as
--with-gnu-ld --with-system-zlib --enable-long-long --enable-nls
--without-included-gettext --disable-checking --enable-threads=posix
--enable-java-gc=boehm --with-cpp-install-dir=bin --enable-objc-gc i386-linux
Description:
Compiling the attached file causes g++ to segfault.
I believe the code is legal C++ apart from the template parameter
being declared friend, and since g++ only makes that a warning, it
presumably is allowing the code as an extension to ISO C++.
How-To-Repeat:
Compile with:
g++-3.0 -O -pedantic -c gcc3.cc
class A {
public:
class I;
I *i;
A(const A);
virtual ~A()=0;
};
class S {
public:
S(const int );
~S() { try { } catch(S) { } }
};
class B {
private:
int m;
public:
bool d() const;
class T {};
};
template class T class P {
friend T;
private:
T *d;
public:
T *g() const;
P(const P );
~P();
template class U P(const PU );
};
inline bool B::d() const { S s(m); return 1; }
template class T inline PT::P(const P o) : d(o.d) {}
template class T inline PT::~P() { d-d(); }
template class T
template class U inline PT::P(const PU o) : d(o.g()) {}
template class T inline T*PT::g() const { return d; }
class A::I {
public:
class D;
PD d;
};
class A::I::D : public B {
public:
D();
};
A::A(const A o): i(new A::I(*o.i)) {}
Fix:
Compiling without optimisation seems to avoid this problem:
g++-3.0 -pedantic -c gcc3.cc
