Bug in g++

[Philippe Hoogvorst <"philippe.hoogvorst"@telecom-paristech.fr>]

Hello !

AS intructed by g++ itself, I'm sending you a bug report.
I tried to reduce the source file to the smallest file which triggers the bug.

Maybe one can make shorter but at least this file contains no '#include'
directive.

Session transcript:
-----------------------------------------------------------------------------------------
> g++ try.cpp
try.cpp: In function âint main()â:
try.cpp:19: internal compiler error: in write_type, at cp/mangle.c:1648
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.2/README.Bugs>.
-----------------------------------------------------------------------------------------
>  g++ -v -save-temps   try.cpp
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--with-gxx-include-dir=/usr/include/c++/4.2 --program-suffix=-4.2
--enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --enable-mpfr
--disable-libmudflap --enable-targets=all --enable-checking=release
--build=i486-linux-gnu --host=i486-linux-gnu --target=i486-linux-gnu
Thread model: posix
gcc version 4.2.3 (Debian 4.2.3-1)
 /usr/lib/gcc/i486-linux-gnu/4.2.3/cc1plus -E -quiet -v -D_GNU_SOURCE try.cpp
-mtune=generic -fpch-preprocess -o try.ii
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc/i486-linux-gnu/4.2.3/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/4.2
 /usr/include/c++/4.2/i486-linux-gnu
 /usr/include/c++/4.2/backward
 /usr/local/include
 /usr/lib/gcc/i486-linux-gnu/4.2.3/include
 /usr/include
End of search list.
 /usr/lib/gcc/i486-linux-gnu/4.2.3/cc1plus -fpreprocessed try.ii -quiet
-dumpbase try.cpp -mtune=generic -auxbase try -version -o try.s
GNU C++ version 4.2.3 (Debian 4.2.3-1) (i486-linux-gnu)
        compiled by GNU C version 4.2.3 (Debian 4.2.3-1).
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64475
Compiler executable checksum: 8fbfc380da4647f28b9a8438f8bc8739
try.cpp: In function âint main()â:
try.cpp:19: internal compiler error: in write_type, at cp/mangle.c:1648
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.2/README.Bugs>.
-----------------------------------------------------------------------------------------


In the hope it can be useful.

Sincerely yours.

-- 
Philippe Hoogvorst
TELECOM ParisTech
46, rue Barrault
75634 Paris CEDEX 13
France

TÃl: (+33) 1 45 81 77 24
Fax: (+33) 1 45 80 40 36


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template <class T> T makeT() ;
template<class TA , class TB > typeof( makeT<TA>()+makeT<TB>()) makeTT() ;

template <class T> struct vector 
{
		vector( ) ;
		void operator=( const vector<T> &);

		template<typename TA , typename TB>
			friend
			vector<typeof(makeTT<TA,TB>())>
			operator + (const vector<TA> &, const vector<TB> &) ;
};

int main()
{

	vector<double> Ta , Tb , Tr ;
	Tr = Ta + Tb ;

}

# 1 "try.cpp"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "try.cpp"
template <class T> T makeT() ;
template<class TA , class TB > typeof( makeT<TA>()+makeT<TB>()) makeTT() ;

template <class T> struct vector
{
  vector( ) ;
  void operator=( const vector<T> &);

  template<typename TA , typename TB>
   friend
   vector<typeof(makeTT<TA,TB>())>
   operator + (const vector<TA> &, const vector<TB> &) ;
};

int main()
{

 vector<double> Ta , Tb , Tr ;
 Tr = Ta + Tb ;

}

	.file	"try.cpp"

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