Rename to detail::is_invocable

Fix #323

test/Jamfile

@@ -41,8 +41,8 @@ unit-test core-tests :
     core/base64.cpp
     core/empty_base_optimization.cpp
     core/get_lowest_layer.cpp
-    core/is_call_possible.cpp
     core/sha1.cpp
+    core/type_traits.cpp
     ;
 
 unit-test http-tests :

test/core/CMakeLists.txt

@@ -34,8 +34,8 @@ add_executable (core-tests
     base64.cpp
     empty_base_optimization.cpp
     get_lowest_layer.cpp
-    is_call_possible.cpp
     sha1.cpp
+    type_traits.cpp
 )
 
 if (NOT WIN32)

test/core/is_call_possible.cpp

@@ -1,56 +0,0 @@
-//
-// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-// Test that header file is self-contained.
-#include <beast/core/detail/is_call_possible.hpp>
-
-namespace beast {
-namespace detail {
-namespace {
-
-struct is_call_possible_udt1
-{
-    void operator()(int) const;
-};
-
-struct is_call_possible_udt2
-{
-    int operator()(int) const;
-};
-
-struct is_call_possible_udt3
-{
-    int operator()(int);
-};
-
-#ifndef __INTELLISENSE__
-// VFALCO Fails to compile with Intellisense
-static_assert(is_call_possible<
-    is_call_possible_udt1, void(int)>::value, "");
-
-static_assert(! is_call_possible<
-    is_call_possible_udt1, void(void)>::value, "");
-
-static_assert(is_call_possible<
-    is_call_possible_udt2, int(int)>::value, "");
-
-static_assert(! is_call_possible<
-    is_call_possible_udt2, int(void)>::value, "");
-
-static_assert(! is_call_possible<
-    is_call_possible_udt2, void(void)>::value, "");
-
-static_assert(is_call_possible<
-    is_call_possible_udt3, int(int)>::value, "");
-
-static_assert(! is_call_possible<
-    is_call_possible_udt3 const, int(int)>::value, "");
-#endif
-
-}
-} // detail
-} // beast

test/core/type_traits.cpp

@@ -0,0 +1,56 @@
+//
+// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+// Test that header file is self-contained.
+#include <beast/core/detail/type_traits.hpp>
+
+namespace beast {
+namespace detail {
+namespace {
+
+struct is_invocable_udt1
+{
+    void operator()(int) const;
+};
+
+struct is_invocable_udt2
+{
+    int operator()(int) const;
+};
+
+struct is_invocable_udt3
+{
+    int operator()(int);
+};
+
+#ifndef __INTELLISENSE__
+// VFALCO Fails to compile with Intellisense
+static_assert(is_invocable<
+    is_invocable_udt1, void(int)>::value, "");
+
+static_assert(! is_invocable<
+    is_invocable_udt1, void(void)>::value, "");
+
+static_assert(is_invocable<
+    is_invocable_udt2, int(int)>::value, "");
+
+static_assert(! is_invocable<
+    is_invocable_udt2, int(void)>::value, "");
+
+static_assert(! is_invocable<
+    is_invocable_udt2, void(void)>::value, "");
+
+static_assert(is_invocable<
+    is_invocable_udt3, int(int)>::value, "");
+
+static_assert(! is_invocable<
+    is_invocable_udt3 const, int(int)>::value, "");
+#endif
+
+}
+} // detail
+} // beast