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* [Bug c++/95744] New: Duplicate error message in a simple decltype specifier
@ 2020-06-18 14:29 haoxintu at gmail dot com
2020-06-18 15:09 ` [Bug c++/95744] " mpolacek at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: haoxintu at gmail dot com @ 2020-06-18 14:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95744
Bug ID: 95744
Summary: Duplicate error message in a simple decltype specifier
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: haoxintu at gmail dot com
CC: mpolacek at gcc dot gnu.org, redi at gcc dot gnu.org
Target Milestone: ---
The test.cc includes a very simple valid decltype specifier with an undeclared
variable(I am definitely sure), but GCC emits two duplicated error messages on
it.
$cat test.cc
decltype(var) i = 100;
$g++-trunk -c -w test.cc
test.cc:1:10: error: ‘var’ was not declared in this scope
1 | decltype(var) i = 100;
| ^~~
test.cc:1:10: error: ‘var’ was not declared in this scope
While in clang
$clang++ -c -w test.cc
test.cc:1:10: error: use of undeclared identifier 'var'
decltype(var) i = 100;
^
1 error generated.
My GCC version is
$g++-trunk --version
g++ (GCC) 11.0.0 20200605 (experimental)
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/95744] Duplicate error message in a simple decltype specifier
2020-06-18 14:29 [Bug c++/95744] New: Duplicate error message in a simple decltype specifier haoxintu at gmail dot com
@ 2020-06-18 15:09 ` mpolacek at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2020-06-18 15:09 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95744
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2020-06-18
Ever confirmed|0 |1
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-06-18 14:29 [Bug c++/95744] New: Duplicate error message in a simple decltype specifier haoxintu at gmail dot com
2020-06-18 15:09 ` [Bug c++/95744] " mpolacek at gcc dot gnu.org
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