>Submitter-Id: net-debian
>Originator: Franck Branjonneau
>Organization:
>Confidential: no
>Synopsis: No initialization of an int allocated with new int.
>Severity: serious
>Priority: medium
>Category: c++
>Class: wrong-code
>Release: 3.0 (Debian) (Debian testing/unstable)
>Environment:
System: Linux alpha.tchume.net 2.4.4 #2 mar mai 22 08:16:07 CEST 2001 i586
unknown
Architecture: i586
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-x
--without-included-gettext --disable-checking --enable-threads=posix
--enable-java-gc=boehm --with-cpp-install-dir=bin --enable-objc-gc i386-linux
>Description:
I compile the following code:
#include <iostream>
namespace utility {
template< typename T, int role, bool ndebug >
struct init {
static T * do_it() {
T* tmp(new T);
std::cout << "/tmp/ point to: " << *tmp << "\n";
return tmp;
}
};
template< typename T, int role, bool ndebug >
struct exit {
static void do_it(T * instance) { delete instance; }
};
} // namespace utility
int main() {
{
int * tmp(utility::init< int, 1, true >::do_it());
utility::exit< int, 1, true >::do_it(tmp);
}
int * tmp(utility::init< int, 0, true >::do_it());
}
got an executable and call it. The ouput was:
/tmp/ point to: 0
/tmp/ point to: 1075812784
>How-To-Repeat:
It's a context-dependant bug, so I don't know.
As an example, if I comment out utility::exit< int, 1, true >::do_it(tmp) in
main(), the behavior is correct.
>Fix:
Customize operator new() ;-)
