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

1 files changed, 60 insertions, 0 deletions

diff --git a/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.inv/invoke_no_variadics.pass.cpp b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.inv/invoke_no_variadics.pass.cpp
new file mode 100644
index 000000000000..c0a14fd96fcb
--- /dev/null
+++ b/test/std/utilities/function.objects/func.wrap/func.wrap.func/func.wrap.func.inv/invoke_no_variadics.pass.cpp
@@ -0,0 +1,60 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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()>
+
+// Test that we properly return both values and void for all non-variadic
+// overloads of function::operator()(...)
+
+#define _LIBCPP_HAS_NO_VARIADICS
+#include <functional>
+#include <cassert>
+
+int foo0() { return 42; }
+int foo1(int) { return 42; }
+int foo2(int, int) { return 42; }
+int foo3(int, int, int) { return 42; }
+
+int main()
+{
+    {
+        std::function<int()> f(&foo0);
+        assert(f() == 42);
+    }
+    {
+        std::function<int(int)> f(&foo1);
+        assert(f(1) == 42);
+    }
+    {
+        std::function<int(int, int)> f(&foo2);
+        assert(f(1, 1) == 42);
+    }
+    {
+        std::function<int(int, int, int)> f(&foo3);
+        assert(f(1, 1, 1) == 42);
+    }
+    {
+        std::function<void()> f(&foo0);
+        f();
+    }
+    {
+        std::function<void(int)> f(&foo1);
+        f(1);
+    }
+    {
+        std::function<void(int, int)> f(&foo2);
+        f(1, 1);
+    }
+    {
+        std::function<void(int, int, int)> f(&foo3);
+        f(1, 1, 1);
+    }
+}