Stratosphere: Add WrapIpcCommandImpl templating.

stratosphere/loader/include/boost/callable_traits/add_varargs.hpp

@@ -0,0 +1,90 @@
+/*
+
+@Copyright Barrett Adair 2015-2017
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+*/
+
+#ifndef BOOST_CLBL_TRTS_ADD_VARARGS_HPP
+#define BOOST_CLBL_TRTS_ADD_VARARGS_HPP
+
+#include <boost/callable_traits/detail/core.hpp>
+
+namespace boost { namespace callable_traits {
+
+//[ add_varargs_hpp
+/*`
+[section:ref_add_varargs add_varargs]
+[heading Header]
+``#include <boost/callable_traits/add_varargs.hpp>``
+[heading Definition]
+*/
+
+template<typename T>
+using add_varargs_t = //see below
+//<-
+    detail::try_but_fail_if_invalid<
+        typename detail::traits<T>::add_varargs,
+        varargs_are_illegal_for_this_type>;
+
+namespace detail {
+
+    template<typename T, typename = std::false_type>
+    struct add_varargs_impl {};
+
+    template<typename T>
+    struct add_varargs_impl <T, typename std::is_same<
+        add_varargs_t<T>, detail::dummy>::type>
+    {
+        using type = add_varargs_t<T>;
+    };
+}
+//->
+
+template<typename T>
+struct add_varargs : detail::add_varargs_impl<T> {};
+
+//<-
+}} // namespace boost::callable_traits
+//->
+
+/*`
+[heading Constraints]
+* `T` must be one of the following:
+  * function type
+  * function pointer type
+  * function reference type
+  * member function pointer type
+* If `T` is a pointer, it may not be cv/ref qualified
+
+[heading Behavior]
+* A substitution failure occurs if the constraints are violated.
+* Adds C-style variadics (`...`) to the signature of `T`, if not already present.
+
+[heading Input/Output Examples]
+[table
+    [[`T`]                              [`add_varargs_t<T>`]]
+    [[`int()`]                          [`int(...)`]]
+    [[`int(int)`]                          [`int(int, ...)`]]
+    [[`int (&)()`]                      [`int(&)(...)`]]
+    [[`int (*)()`]                      [`int(*)(...)`]]
+    [[`int (*)(...)`]                   [`int(*)(...)`]]
+    [[`int(foo::*)()`]                  [`int(foo::*)(...)`]]
+    [[`int(foo::*)() &`]                [`int(foo::*)(...) &`]]
+    [[`int(foo::*)() &&`]               [`int(foo::*)(...) &&`]]
+    [[`int(foo::*)() const`]            [`int(foo::*)(...) const`]]
+    [[`int(foo::*)() transaction_safe`] [`int(foo::*)(...) transaction_safe`]]
+    [[`int`]                            [(substitution failure)]]
+    [[`int foo::*`]                     [(substitution failure)]]
+    [[`int (*&)()`]                     [(substitution failure)]]
+]
+
+[heading Example Program]
+[import ../example/add_varargs.cpp]
+[add_varargs]
+[endsect]
+*/
+//]
+
+#endif