From 9c1bb542fb283e1d1f7f8ab1e3554b133d90160b Mon Sep 17 00:00:00 2001
From: Arkady Shapkin <arkady.shapkin@gmail.com>
Date: Thu, 8 Jun 2017 02:28:17 +0300
Subject: [PATCH] Fix gmock tests when std::unary_function unavailable

---
 googlemock/test/gmock-matchers_test.cc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/googlemock/test/gmock-matchers_test.cc b/googlemock/test/gmock-matchers_test.cc
index 207c6fdd21..4beaec4c38 100644
--- a/googlemock/test/gmock-matchers_test.cc
+++ b/googlemock/test/gmock-matchers_test.cc
@@ -3936,8 +3936,11 @@ TEST(ResultOfTest, WorksForFunctionReferences) {
 
 // Tests that ResultOf(f, ...) compiles and works as expected when f is a
 // function object.
-struct Functor : public ::std::unary_function<int, std::string> {
-  result_type operator()(argument_type input) const {
+struct Functor {
+  typedef std::string result_type;
+  typedef int argument_type;
+
+  std::string operator()(int input) const {
     return IntToStringFunction(input);
   }
 };