From 0d0b9729271b3ef6c4ac9dfcee3c8c9f4aa79ec9 Mon Sep 17 00:00:00 2001
From: Marshall Clow <mclow.lists@gmail.com>
Date: Sat, 14 Jul 2018 04:15:19 +0000
Subject: [PATCH] Mark __equal_to 's operations as constexpr.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@337087 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/algorithm | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/algorithm b/include/algorithm
index b8fa7e779..90f1d246c 100644
--- a/include/algorithm
+++ b/include/algorithm
@@ -671,10 +671,10 @@ _LIBCPP_BEGIN_NAMESPACE_STD
 template <class _T1, class _T2 = _T1>
 struct __equal_to
 {
-    _LIBCPP_INLINE_VISIBILITY bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;}
-    _LIBCPP_INLINE_VISIBILITY bool operator()(const _T1& __x, const _T2& __y) const {return __x == __y;}
-    _LIBCPP_INLINE_VISIBILITY bool operator()(const _T2& __x, const _T1& __y) const {return __x == __y;}
-    _LIBCPP_INLINE_VISIBILITY bool operator()(const _T2& __x, const _T2& __y) const {return __x == __y;}
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T1& __x, const _T1& __y) const {return __x == __y;}
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T1& __x, const _T2& __y) const {return __x == __y;}
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T2& __x, const _T1& __y) const {return __x == __y;}
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 bool operator()(const _T2& __x, const _T2& __y) const {return __x == __y;}
 };
 
 template <class _T1>