Fixing whitespace problems

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@111767 91177308-0d34-0410-b5e6-96231b3b80d8

test/utilities/function.objects/refwrap/refwrap.invoke/invoke_int_0.pass.cpp

@@ -1 +1,76 @@
-//===----------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+
+// reference_wrapper
+
+// template <class... ArgTypes>
+//   requires Callable<T, ArgTypes&&...>
+//   Callable<T, ArgTypes&&...>::result_type
+//   operator()(ArgTypes&&... args) const;
+
+#include <functional>
+#include <cassert>
+
+// 0 args, return int
+
+int count = 0;
+
+int f_int_0()
+{
+    return 3;
+}
+
+struct A_int_0
+{
+    int operator()() {return 4;}
+};
+
+void
+test_int_0()
+{
+    // function
+    {
+    std::reference_wrapper<int ()> r1(f_int_0);
+    assert(r1() == 3);
+    }
+    // function pointer
+    {
+    int (*fp)() = f_int_0;
+    std::reference_wrapper<int (*)()> r1(fp);
+    assert(r1() == 3);
+    }
+    // functor
+    {
+    A_int_0 a0;
+    std::reference_wrapper<A_int_0> r1(a0);
+    assert(r1() == 4);
+    }
+}
+
+// 1 arg, return void
+
+void f_void_1(int i)
+{
+    count += i;
+}
+
+struct A_void_1
+{
+    void operator()(int i)
+    {
+        count += i;
+    }
+};
+
+int main()
+{
+    test_int_0();
+}