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g++ 2.95.2 internal compiler error, template related.
- To: gcc-bugs at gcc dot gnu dot org
- Subject: g++ 2.95.2 internal compiler error, template related.
- From: Vasilis Samoladas <vsam at cs dot utexas dot edu>
- Date: Fri, 3 Mar 2000 09:56:46 -0600 (CST)
- Cc: vsam at cs dot utexas dot edu
Hi, I am reporting a bug I found, causing the C++ compiler to report internal
compiler error. Here is a short program that causes the bug:
############################
/*
Member templates cause internal compiler error when passed as template parameters
to a template. Top-level templates work fine.
*/
template <template <int n> class Foo> struct Bar
{
};
namespace ExtScope {
template <int n> struct Member { };
}
struct ExtClass {
template <int n> struct Member { };
};
main()
{
Bar< ExtScope::Member > x; // works fine
Bar< ExtClass::Member > y; // internal compiler error !!!
}
################################
and here is the compiler output:
/opt/devel/bin/g++ -v -c tmplbug.cc
Reading specs from /opt/devel/lib/gcc-lib/i586-pc-linux-gnu/2.95.2/specs
gcc version 2.95.2 19991024 (release)
/opt/devel/lib/gcc-lib/i586-pc-linux-gnu/2.95.2/cpp -lang-c++ -v -D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=95 -D__cplusplus -D__ELF__ -Dunix -D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__ -D__linux__ -D__unix -D__linux -Asystem(posix) -D__EXCEPTIONS -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -Di586 -Dpentium -D__i586 -D__i586__ -D__pentium -D__pentium__ tmplbug.cc /tmp/ccL5HCQ2.ii
GNU CPP version 2.95.2 19991024 (release) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
/opt/devel/lib/gcc-lib/i586-pc-linux-gnu/2.95.2/../../../../include/g++-3
/usr/local/include
/opt/devel/lib/gcc-lib/i586-pc-linux-gnu/2.95.2/../../../../i586-pc-linux-gnu/include
/opt/devel/lib/gcc-lib/i586-pc-linux-gnu/2.95.2/include
/usr/include
End of search list.
The following default directories have been omitted from the search path:
/usr/lib/interviews/include/IV-2_6
/usr/lib/interviews/include
End of omitted list.
/opt/devel/lib/gcc-lib/i586-pc-linux-gnu/2.95.2/cc1plus /tmp/ccL5HCQ2.ii -quiet -dumpbase tmplbug.cc -version -o /tmp/ccTCqTY4.s
GNU C++ version 2.95.2 19991024 (release) (i586-pc-linux-gnu) compiled by GNU C version 2.95.2 19991024 (release).
tmplbug.cc: In function `int main()':
tmplbug.cc:21: Internal compiler error 980422.
tmplbug.cc:21: Please submit a full bug report.
tmplbug.cc:21: See <URL:http://www.gnu.org/software/gcc/faq.html#bugreport> for instructions.
Compilation exited abnormally with code 1 at Fri Mar 3 09:52:03
######################################
Thanks to all gcc developers!!
Vasilis