c++/2055: Legal code rejected by gcc-3, accepted by gcc-2.95 (static array)

[schmid@snake.iap.physik.tu-darmstadt.de]

>Number:         2055
>Category:       c++
>Synopsis:       Legal code rejected by gcc-3, accepted by gcc-2.95 (static array)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Wed Feb 21 16:36:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Peter Schmid
>Release:        3.0 20010221 (prerelease)
>Organization:
TU Darmstadt
>Environment:
System: Linux kiste 2.4.1 #33 Thu Feb 15 12:51:39 CET 2001 i686 unknown
Architecture: i686
SuSE 7.1
GNU assembler version 2.10.91 (i686-pc-linux-gnu) using BFD version 2.10.1.0.4
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix
>Description:
The following, IMHO legal, code ta.C is rejected by gcc-3.0
20010221. Maybe gcc-3.0 has problems with static arrays inside classes?
G++-2.95.2 accepts and compiles this code without a message.
I appologise if this is a bogus bugreport.

>How-To-Repeat:
source file ta.C
template <class T>
struct Class
{
    enum { sz=5 };
    static int a[sz];
};
template <class T>
int Class<T>::a[Class<T>::sz];

int main()
{
    return 0;
}

compiling the file file ta.C by gcc-3.0 
g++ -v -o ta ta.C -W -Wall 
Reading specs from /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.0/specs
Configured with: ../gcc/configure --enable-shared --disable-nls --enable-threads=posix
gcc version 3.0 20010221 (prerelease)
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.0/cc1plus -v -D__GNUC__=3 -D__GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux -D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem=posix -D__STDC_HOSTED__=1 -W -Wall -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ ta.C -D__GNUG__=3 -D_GNU_SOURCE -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -quiet -dumpbase ta.C -W -Wall -version -o /tmp/ccI8i0lv.s
GNU CPP version 3.0 20010221 (prerelease) (cpplib) (i386 Linux/ELF)
GNU CPP version 3.0 20010221 (prerelease) (cpplib) (i386 Linux/ELF)
GNU C++ version 3.0 20010221 (prerelease) (i686-pc-linux-gnu)
	compiled by GNU C version 3.0 20010221 (prerelease).
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include/g++-v3
 /usr/local/include/g++-v3/i686-pc-linux-gnu
 /usr/local/include
 /usr/local/lib/gcc-lib/i686-pc-linux-gnu/3.0/include
 /usr/local/i686-pc-linux-gnu/include
 /usr/include
End of search list.
ta.C:8: conflicting types for `int Class<T>::a[Class<T>::sz]'
ta.C:5: previous declaration as `int Class<T>::a[5]'

compiling the file file ta.C by gcc-2.95.2
/usr/bin/g++ -v -o ta ta.C -W -Wall 
Reading specs from /usr/lib/gcc-lib/i486-suse-linux/2.95.2/specs
gcc version 2.95.2 19991024 (release)
 /usr/lib/gcc-lib/i486-suse-linux/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 -W -Wall -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ -Di486 -D__i486 -D__i486__ ta.C /tmp/cccAwlwx.ii
GNU CPP version 2.95.2 19991024 (release) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/g++
 /usr/local/include
 /usr/lib/gcc-lib/i486-suse-linux/2.95.2/include
 /usr/include
End of search list.
The following default directories have been omitted from the search path:
 /usr/lib/gcc-lib/i486-suse-linux/2.95.2/../../../../i486-suse-linux/include
End of omitted list.
 /usr/lib/gcc-lib/i486-suse-linux/2.95.2/cc1plus /tmp/cccAwlwx.ii -quiet -dumpbase ta.cc -W -Wall -version -o /tmp/cc8UJGzV.s
GNU C++ version 2.95.2 19991024 (release) (i486-suse-linux) compiled by GNU C version 2.95.2 19991024 (release).
 /usr/i486-suse-linux/bin/as -V -Qy -o /tmp/ccg60lok.o /tmp/cc8UJGzV.s
GNU assembler version 2.10.91 (i486-suse-linux) using BFD version 2.10.0.33
 /usr/lib/gcc-lib/i486-suse-linux/2.95.2/collect2 -m elf_i386 -dynamic-linker /lib/ld-linux.so.2 -o ta /usr/lib/crt1.o /usr/lib/crti.o /usr/lib/gcc-lib/i486-suse-linux/2.95.2/crtbegin.o -L/usr/lib/gcc-lib/i486-suse-linux/2.95.2 -L/usr/i486-suse-linux/lib /tmp/ccg60lok.o -lstdc++ -lm -lgcc -lc -lgcc /usr/lib/gcc-lib/i486-suse-linux/2.95.2/crtend.o /usr/lib/crtn.o


>Fix:
	
>Release-Note:
>Audit-Trail:
>Unformatted: