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c++/8327: g++ doesn't know value of static const member
- From: dv at vollmann dot ch
- To: gcc-gnats at gcc dot gnu dot org
- Date: Thu, 24 Oct 2002 00:15:54 +0200
- Subject: c++/8327: g++ doesn't know value of static const member
>Number: 8327
>Category: c++
>Synopsis: In definition of template static member value of static const member isn't known
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: unassigned
>State: open
>Class: rejects-legal
>Submitter-Id: net
>Arrival-Date: Wed Oct 23 15:26:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Detlef Vollmann
>Release: 3.3 20021020 (experimental)
>Organization:
vollmann engineering gmbh
>Environment:
System: Linux dwarf 2.4.3-XFS #7 Mon Aug 6 18:43:20 CEST 2001 i686 unknown
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: /pdsrc/gcc/cvs/gcc/configure --program-suffix=-test --prefix=/local/gcc-test --enable-shared --enable-threads=posix --enable-version-specific-runtime-libs --enable-languages=c,c++
>Description:
If a template contains a static array, and the dimension
of the array is defined by a const static member with initializer,
and the dimension is used in the definition of the static array,
g++ gives an error "conflicting types"; which probably means
that the value of the dimension is lost.
>How-To-Repeat:
template <class T>
class X
{
static const int a = 5;
static T b[a];
};
template <class T> T X<T>::b[X::a];
>Fix:
The dimension can be left out in the definition of the static member.
>Release-Note:
>Audit-Trail:
>Unformatted: