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[Bug c++/71137] New: [concepts] Spurious 'symbol is already defined' error issued when declaring a constrained non-template function overload.
- From: "tom at honermann dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 16 May 2016 02:59:38 +0000
- Subject: [Bug c++/71137] New: [concepts] Spurious 'symbol is already defined' error issued when declaring a constrained non-template function overload.
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71137
Bug ID: 71137
Summary: [concepts] Spurious 'symbol is already defined' error
issued when declaring a constrained non-template
function overload.
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: tom at honermann dot net
CC: andrew.n.sutton at gmail dot com, asutton at gcc dot gnu.org
Target Milestone: ---
I believe the following test case is well-formed; the Concepts TS has similar
examples (Â 13.4p4). However, compiling this code results in a duplicate
definition error in gcc r236238.
$ cat t.cpp
void f() {}
void f() requires true {}
$ svn info
Path: .
Working Copy Root Path: /home/tom/src/gcc-trunk
URL: svn://gcc.gnu.org/svn/gcc/trunk
Relative URL: ^/trunk
Repository Root: svn://gcc.gnu.org/svn/gcc
Repository UUID: 138bc75d-0d04-0410-961f-82ee72b054a4
Revision: 236239
Node Kind: directory
Schedule: normal
Last Changed Author: uros
Last Changed Rev: 236238
Last Changed Date: 2016-05-14 05:07:13 -0400 (Sat, 14 May 2016)
$ g++ --version
g++ (GCC) 7.0.0 20160514 (experimental)
...
$ g++ -c -std=c++1z -fconcepts t.cpp
/tmp/ccONCRCJ.s: Assembler messages:
/tmp/ccONCRCJ.s:22: Error: symbol `_Z1fv' is already defined