[Bug c++/97099] [temp.deduct.guide]p3 not implemented properly

2020-09-21 Thread mpolacek at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97099

Marek Polacek  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|ASSIGNED|RESOLVED

--- Comment #2 from Marek Polacek  ---
Fixed.

[Bug c++/97099] [temp.deduct.guide]p3 not implemented properly

2020-09-21 Thread cvs-commit at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97099

--- Comment #1 from CVS Commits  ---
The master branch has been updated by Marek Polacek :

https://gcc.gnu.org/g:b6ff694e592669e7865d39a884100dd677e7ceec

commit r11-3326-gb6ff694e592669e7865d39a884100dd677e7ceec
Author: Marek Polacek 
Date:   Fri Sep 18 19:37:05 2020 -0400

c++: Detect deduction guide redeclaration [PR97099]

[temp.deduct.guide]p3: Two deduction guide declarations in the same
translation unit for the same class template shall not have equivalent
parameter-declaration-clauses.

So let's detect that.

gcc/cp/ChangeLog:

PR c++/97099
* decl.c (redeclaration_error_message): Detect a redeclaration of
deduction guides.

gcc/testsuite/ChangeLog:

PR c++/97099
* g++.dg/cpp1z/class-deduction74.C: New test.

[Bug c++/97099] [temp.deduct.guide]p3 not implemented properly

2020-09-18 Thread mpolacek at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97099

Marek Polacek  changed:

   What|Removed |Added

   Last reconfirmed||2020-09-18
 Ever confirmed|0   |1
 Status|UNCONFIRMED |ASSIGNED
   Assignee|unassigned at gcc dot gnu.org  |mpolacek at gcc dot 
gnu.org