Fixing whitespace problems

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

test/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.inv/invoke_void_0.pass.cpp

@@ -1 +1,67 @@
-//===----------------------------------------------------------------------===//
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+
+// class function<R(ArgTypes...)>
+
+// R operator()(ArgTypes... args) const
+
+#include <functional>
+#include <new>
+#include <cstdlib>
+#include <cassert>
+
+// 0 args, return void
+
+int count = 0;
+
+void f_void_0()
+{
+    ++count;
+}
+
+struct A_void_0
+{
+    void operator()() {++count;}
+};
+
+void
+test_void_0()
+{
+    int save_count = count;
+    // function
+    {
+    std::function<void ()> r1(f_void_0);
+    r1();
+    assert(count == save_count+1);
+    save_count = count;
+    }
+    // function pointer
+    {
+    void (*fp)() = f_void_0;
+    std::function<void ()> r1(fp);
+    r1();
+    assert(count == save_count+1);
+    save_count = count;
+    }
+    // functor
+    {
+    A_void_0 a0;
+    std::function<void ()> r1(a0);
+    r1();
+    assert(count == save_count+1);
+    save_count = count;
+    }
+}
+
+int main()
+{
+    test_void_0();
+}