diff options
| author | Jason Merrill <jason@redhat.com> | 2019-11-27 22:05:53 +0000 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2019-11-27 22:05:53 +0000 |
| commit | ddcbf537ec3d1aefabb385527a67aa4bb4e6246d (patch) | |
| tree | 3f4b4913ffbd60d6a8230235c945963f61958534 /gcc/c-family/ChangeLog | |
| parent | ac1745ae600ec50d9248cc720559167ac10a0ecb (diff) | |
Implement P1814R0, CTAD for alias templates.
This patch implements C++20 class template argument deduction for alias
templates, which works by a moderately arcane transformation of the
deduction guides for the underlying class template. When implementing it,
it seemed that I could simplify the rules in the draft a bit and get
essentially the same effect; I'll be emailing the committee to that effect
soon.
gcc/cp/
* pt.c (rewrite_tparm_list): Factor out of build_deduction_guide.
(maybe_aggr_guide): Check for copy-init here.
(alias_ctad_tweaks, deduction_guides_for): New.
(ctor_deduction_guides_for): Factor out of do_class_deduction.
(ctad_template_p): New.
* parser.c (cp_parser_simple_type_specifier): Use it.
* constraint.cc (append_constraint): New.
gcc/c-family/
* c-cppbuiltin.c (c_cpp_builtins): Update __cpp_deduction_guides.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@278786 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-family/ChangeLog')
| -rw-r--r-- | gcc/c-family/ChangeLog | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog index 89292175846..a26b1f28ead 100644 --- a/gcc/c-family/ChangeLog +++ b/gcc/c-family/ChangeLog @@ -1,3 +1,7 @@ +2019-11-27 Jason Merrill <jason@redhat.com> + + * c-cppbuiltin.c (c_cpp_builtins): Update __cpp_deduction_guides. + 2019-11-26 Jakub Jelinek <jakub@redhat.com> PR c++/61414 |