From f8403c43045cd56b5f775e1cf12a3f22feca4b58 Mon Sep 17 00:00:00 2001
From: Jonathan Wakely <jwakely@redhat.com>
Date: Thu, 1 Jun 2023 16:49:53 +0100
Subject: [PATCH] libstdc++: Fix PSTL test that fails in C++20
This test fails in C++20 and later due to a warning:
warning: C++20 says that these are ambiguous, even though the second is reversed:
note: candidate 1: 'bool MyClass::operator==(const MyClass&)'
note: candidate 2: 'bool MyClass::operator==(const MyClass&)' (reversed)
note: try making the operator a 'const' member function
FAIL: 26_numerics/pstl/numeric_ops/transform_reduce.cc (test for excess errors)
libstdc++-v3/ChangeLog:
* testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
Add const to equality operator.
---
.../testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libstdc++-v3/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc b/libstdc++-v3/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc
index ec020b42bbb4..bec1c1412788 100644
--- a/libstdc++-v3/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc
+++ b/libstdc++-v3/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc
@@ -68,7 +68,7 @@ class MyClass
}
friend MyClass operator*(const MyClass& x, const MyClass& y) { return MyClass(x.my_field * y.my_field); }
bool
- operator==(const MyClass& in)
+ operator==(const MyClass& in) const
{
return my_field == in.my_field;
}
--
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