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* [gcc r13-1516] c++: dependent conversion operator lookup [PR106179]
@ 2022-07-06 4:40 Jason Merrill
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From: Jason Merrill @ 2022-07-06 4:40 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:656c0212909bc91b1025aa12774d981adb531b4c
commit r13-1516-g656c0212909bc91b1025aa12774d981adb531b4c
Author: Jason Merrill <jason@redhat.com>
Date: Tue Jul 5 17:05:47 2022 -0400
c++: dependent conversion operator lookup [PR106179]
This testcase demonstrates that my assumption that we would only be
interested in a class template lookup if the template-id is followed by ::
was wrong.
PR c++/106179
PR c++/106024
gcc/cp/ChangeLog:
* parser.cc (cp_parser_lookup_name): Remove :: requirement
for using unqualified lookup result.
gcc/testsuite/ChangeLog:
* g++.dg/template/operator16.C: New test.
Diff:
---
gcc/cp/parser.cc | 4 ----
gcc/testsuite/g++.dg/template/operator16.C | 9 +++++++++
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
index df657a3fb2b..5cd6a527d93 100644
--- a/gcc/cp/parser.cc
+++ b/gcc/cp/parser.cc
@@ -30738,10 +30738,6 @@ cp_parser_lookup_name (cp_parser *parser, tree name,
looking at a template arg list. */
if (!cp_parser_skip_entire_template_parameter_list (parser))
decl = NULL_TREE;
- /* And only use the unqualified lookup if we're looking at ::. */
- if (decl
- && !cp_lexer_next_token_is (parser->lexer, CPP_SCOPE))
- decl = NULL_TREE;
}
/* If we know we're looking for a type (e.g. A in p->A::x),
diff --git a/gcc/testsuite/g++.dg/template/operator16.C b/gcc/testsuite/g++.dg/template/operator16.C
new file mode 100644
index 00000000000..434a266850c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/operator16.C
@@ -0,0 +1,9 @@
+// PR c++/106179
+
+struct Mat {
+ template <typename> Mat();
+};
+template <typename> struct Mat_;
+template <typename _Tp> Mat::Mat() {
+ _Tp commaInitializer = commaInitializer.operator Mat_<_Tp>;
+}
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