Tested x86_64-pc-linux-gnu, applying to trunk.
-- 8< --
As with PR116928, we need to set greater_than_is_operator_p within the
lambda delimiters.
PR c++/107953
gcc/cp/ChangeLog:
* parser.cc (cp_parser_lambda_expression): Set
greater_than_is_operator_p.
gcc/testsuite/ChangeLog:
* g++.dg/cpp2a/lambda-targ18.C: New test.
---
gcc/cp/parser.cc | 2 ++
gcc/testsuite/g++.dg/cpp2a/lambda-targ18.C | 13 +++++++++++++
2 files changed, 15 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/cpp2a/lambda-targ18.C
diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
index 0d45ab42799..9f9bd565004 100644
--- a/gcc/cp/parser.cc
+++ b/gcc/cp/parser.cc
@@ -11806,6 +11806,8 @@ cp_parser_lambda_expression (cp_parser* parser,
it now. */
push_deferring_access_checks (dk_no_deferred);
+ auto gr = make_temp_override (parser->greater_than_is_operator_p, true);
+
if (!consteval_block_p)
{
cp_parser_lambda_introducer (parser, lambda_expr);
diff --git a/gcc/testsuite/g++.dg/cpp2a/lambda-targ18.C
b/gcc/testsuite/g++.dg/cpp2a/lambda-targ18.C
new file mode 100644
index 00000000000..d4011f3e315
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp2a/lambda-targ18.C
@@ -0,0 +1,13 @@
+// PR c++/107953
+// { dg-do compile { target c++20 } }
+
+template<auto F>
+struct Foo {};
+
+Foo<[](){ return 1 >= 0; }> foo1{};
+
+Foo<[](){ return (1 > 0); }> foo2{};
+
+Foo<[](){ return 1 > 0; }> foo3{};
+
+Foo<[g = 1 > 0]{ return g; }> foo4{};
base-commit: 6750f5902c600907a56b9a72b4bae7d9762515c9
--
2.50.1
