vendor/libc++/libc++-release_370-r246257

1 files changed, 58 insertions, 0 deletions

diff --git a/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.inv/invoke_int_0.pass.cpp b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.inv/invoke_int_0.pass.cpp
new file mode 100644
index 000000000000..67b4ec22da8c
--- /dev/null
+++ b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.inv/invoke_int_0.pass.cpp
@@ -0,0 +1,58 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+
+// class function<R(ArgTypes...)>
+
+// R 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::function<int ()> r1(f_int_0);
+    assert(r1() == 3);
+    }
+    // function pointer
+    {
+    int (*fp)() = f_int_0;
+    std::function<int ()> r1(fp);
+    assert(r1() == 3);
+    }
+    // functor
+    {
+    A_int_0 a0;
+    std::function<int ()> r1(a0);
+    assert(r1() == 4);
+    }
+}
+
+int main()
+{
+    test_int_0();
+}