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* [Bug c++/106214] New: Vector template argument deduction fails for templated function element
@ 2022-07-06 12:33 henrik.nortamo at csc dot fi
2022-07-06 14:29 ` [Bug c++/106214] " ppalka at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: henrik.nortamo at csc dot fi @ 2022-07-06 12:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106214
Bug ID: 106214
Summary: Vector template argument deduction fails for templated
function element
Product: gcc
Version: 11.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: henrik.nortamo at csc dot fi
Target Milestone: ---
Created attachment 53262
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53262&action=edit
full compiler error message
The following code fails to compile with the command
g++ -Wall -Wextra --std=c++17 minimal.cpp
minimal.cpp
"""
#include <vector>
template<typename T>
void foo() {}
int main(){
std::vector V{foo<float>};
return 0;
}
"""
The error emitted is (full error as an attachment ):
"""
minimal.cpp: In function ‘int main()’:
minimal.cpp:7:29: error: class template argument deduction failed:
std::vector V{foo<float>};
^
minimal.cpp:7:29: error: no matching function for call to ‘vector(<unresolved
overloaded function type>)’
In file included from /usr/include/c++/8/vector:64
"""
Tested to fail in the same way for the following g++ versions:
7.4.0
8.3.0
8.5.0
9.1.0
9.4.0
11.2.0
11.3.0
Code compiles using Clang 13.0.0, icpc (ICC) 19.0.4 and
"Intel(R) oneAPI DPC++/C++ Compiler 2022.1.0"
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/106214] Vector template argument deduction fails for templated function element
2022-07-06 12:33 [Bug c++/106214] New: Vector template argument deduction fails for templated function element henrik.nortamo at csc dot fi
@ 2022-07-06 14:29 ` ppalka at gcc dot gnu.org
2023-05-08 13:03 ` cvs-commit at gcc dot gnu.org
2023-05-08 13:04 ` ppalka at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: ppalka at gcc dot gnu.org @ 2022-07-06 14:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106214
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |rejects-valid
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=93107
Status|UNCONFIRMED |NEW
CC| |ppalka at gcc dot gnu.org
Last reconfirmed| |2022-07-06
Ever confirmed|0 |1
--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Confirmed, not a regression. Reduced:
#include <initializer_list>
template<class T>
struct vector {
vector(std::initializer_list<T>);
};
template<class T> void f();
vector v = {f<int>};
Seems similar to PR93107 but using CTAD instead of ordinary auto deduction.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/106214] Vector template argument deduction fails for templated function element
2022-07-06 12:33 [Bug c++/106214] New: Vector template argument deduction fails for templated function element henrik.nortamo at csc dot fi
2022-07-06 14:29 ` [Bug c++/106214] " ppalka at gcc dot gnu.org
@ 2023-05-08 13:03 ` cvs-commit at gcc dot gnu.org
2023-05-08 13:04 ` ppalka at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-05-08 13:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106214
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:
https://gcc.gnu.org/g:06ef1583d68169d1a002f5e86189462bb748963c
commit r14-578-g06ef1583d68169d1a002f5e86189462bb748963c
Author: Patrick Palka <ppalka@redhat.com>
Date: Mon May 8 09:03:35 2023 -0400
c++: list CTAD and resolve_nondeduced_context [PR106214]
This extends the PR93107 fix, which made us do resolve_nondeduced_context
on the elements of an initializer list during auto deduction, to happen for
CTAD as well.
PR c++/106214
PR c++/93107
gcc/cp/ChangeLog:
* pt.cc (do_auto_deduction): Move up resolve_nondeduced_context
calls to happen before do_class_deduction. Add some
error_mark_node tests.
gcc/testsuite/ChangeLog:
* g++.dg/cpp1z/class-deduction114.C: New test.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/106214] Vector template argument deduction fails for templated function element
2022-07-06 12:33 [Bug c++/106214] New: Vector template argument deduction fails for templated function element henrik.nortamo at csc dot fi
2022-07-06 14:29 ` [Bug c++/106214] " ppalka at gcc dot gnu.org
2023-05-08 13:03 ` cvs-commit at gcc dot gnu.org
@ 2023-05-08 13:04 ` ppalka at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: ppalka at gcc dot gnu.org @ 2023-05-08 13:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106214
Patrick Palka <ppalka at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Target Milestone|--- |14.0
Assignee|unassigned at gcc dot gnu.org |ppalka at gcc dot gnu.org
Resolution|--- |FIXED
--- Comment #3 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Fixed for GCC 14, thanks for the bug report.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-05-08 13:04 UTC | newest]
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2022-07-06 12:33 [Bug c++/106214] New: Vector template argument deduction fails for templated function element henrik.nortamo at csc dot fi
2022-07-06 14:29 ` [Bug c++/106214] " ppalka at gcc dot gnu.org
2023-05-08 13:03 ` cvs-commit at gcc dot gnu.org
2023-05-08 13:04 ` ppalka at gcc dot gnu.org
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