Fix tests for std::clamp

	* testsuite/25_algorithms/clamp/1.cc: Fix order of arguments and
	expected results when using predicate defining reverse order.
	* testsuite/25_algorithms/clamp/constexpr.cc: Likewise.

From-SVN: r253051

libstdc++-v3/ChangeLog

+2017-09-21  Jonathan Wakely  <jwakely@redhat.com>
+
+	* testsuite/25_algorithms/clamp/1.cc: Fix order of arguments and
+	expected results when using predicate defining reverse order.
+	* testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
+
 2017-09-20  Jonathan Wakely  <jwakely@redhat.com>
 
 	PR libstdc++/79162

libstdc++-v3/testsuite/25_algorithms/clamp/1.cc

@@ -30,12 +30,12 @@ void test01()
   VERIFY( y == 3 );
   VERIFY( z == 4 );
 
-  const int xc = std::clamp(1, 2, 4, std::greater<int>());
-  const int yc = std::clamp(3, 2, 4, std::greater<int>());
-  const int zc = std::clamp(5, 2, 4, std::greater<int>());
-  VERIFY( xc == 4 );
-  VERIFY( yc == 2 );
-  VERIFY( zc == 2 );
+  const int xc = std::clamp(1, 4, 2, std::greater<int>());
+  const int yc = std::clamp(3, 4, 2, std::greater<int>());
+  const int zc = std::clamp(5, 4, 2, std::greater<int>());
+  VERIFY( xc == 2 );
+  VERIFY( yc == 3 );
+  VERIFY( zc == 4 );
 }
 
 int

libstdc++-v3/testsuite/25_algorithms/clamp/constexpr.cc

@@ -27,5 +27,5 @@
 # error "Feature-test macro for clamp has wrong value"
 #endif
 
-static_assert(std::clamp(2, 0, 1) == 1, "");
-static_assert(std::clamp(2, 0, 1, std::greater<int>()) == 0, "");
+static_assert(std::clamp(2, 0, 1) == 1);
+static_assert(std::clamp(2, 1, 0, std::greater<int>()) == 1);