r274123 - in /trunk/gcc: cp/ChangeLog cp/parser...

[jason@gcc.gnu.org]

Author: jason
Date: Mon Aug  5 19:34:23 2019
New Revision: 274123

URL: https://gcc.gnu.org/viewcvs?rev=274123&root=gcc&view=rev
Log:
PR c++/88095, CTAD for literal operator templates per P0732

This patch fixes PR c++/88095: class nontype template parameter UDL string
literals doesn't accepts deduction placeholder

It also addresses a latent issue; literal operator templates with template
parameter packs of literal class type were previously accepted.  The patch
corrects this and adds a test (udlit-class-nttp-neg.C).

This fix is needed for one of the char8_t remediation approaches documented
in P1423, and may be helpful for existing code bases impacted by the char8_t
changes adopted via P0482 for C++20.

gcc/cp/ChangeLog:

2019-08-02  Tom Honermann  <tom@honermann.net>

        * parser.c (cp_parser_template_declaration_after_parameters): Enable
        class template argument deduction for non-type template parameters
        in literal operator templates.

gcc/testsuite/ChangeLog:

2019-08-02  Tom Honermann  <tom@honermann.net>

        PR c++/88095
        * g++.dg/cpp2a/udlit-class-nttp-ctad.C: New test.
        * g++.dg/cpp2a/udlit-class-nttp-ctad-neg.C: New test.
        * g++.dg/cpp2a/udlit-class-nttp-ctad-neg2.C: New test.
        * g++.dg/cpp2a/udlit-class-nttp.C: New test.
        * g++.dg/cpp2a/udlit-class-nttp-neg.C: New test.
        * g++.dg/cpp2a/udlit-class-nttp-neg2.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp2a/udlit-class-nttp-ctad-neg.C
    trunk/gcc/testsuite/g++.dg/cpp2a/udlit-class-nttp-ctad-neg2.C
    trunk/gcc/testsuite/g++.dg/cpp2a/udlit-class-nttp-ctad.C
    trunk/gcc/testsuite/g++.dg/cpp2a/udlit-class-nttp-neg.C
    trunk/gcc/testsuite/g++.dg/cpp2a/udlit-class-nttp-neg2.C
    trunk/gcc/testsuite/g++.dg/cpp2a/udlit-class-nttp.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/parser.c
    trunk/gcc/testsuite/ChangeLog