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Editing: is_transaction_safe.hpp
/* @file is_transaction_safe @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_IS_TRANSACTION_SAFE_HPP #define BOOST_CLBL_TRTS_IS_TRANSACTION_SAFE_HPP #include <boost/callable_traits/detail/core.hpp> namespace boost { namespace callable_traits { //[ is_transaction_safe_hpp /*`[section:ref_is_transaction_safe is_transaction_safe] [heading Header] ``#include <boost/callable_traits/is_transaction_safe.hpp>`` [heading Definition] */ // inherits from either std::true_type or std::false_type template<typename T> struct is_transaction_safe; //<- template<typename T> struct is_transaction_safe : detail::traits< detail::shallow_decay<T>>::is_transaction_safe { using type = typename detail::traits< detail::shallow_decay<T>>::is_transaction_safe; }; #ifdef BOOST_CLBL_TRTS_DISABLE_VARIABLE_TEMPLATES template<typename T> struct is_transaction_safe_v { static_assert(std::is_same<T, detail::dummy>::value, "Variable templates not supported on this compiler."); }; #else //-> // only available when variable templates are supported template<typename T> //<- BOOST_CLBL_TRAITS_INLINE_VAR //-> constexpr bool is_transaction_safe_v = //see below //<- detail::traits<detail::shallow_decay<T>>::is_transaction_safe::value; #endif }} // namespace boost::callable_traits //-> /*` [heading Constraints] * none * [heading Behavior] * `is_transaction_safe<T>::value` is `true` when either: * `T` is a function type, function pointer type, function reference type, or member function pointer type where the function has a `transaction_safe` specifier * `T` is a function object with a non-overloaded `operator()`, where the `operator()` has a `transaction_safe` specifier * On compilers that support variable templates, `is_transaction_safe_v<T>` is equivalent to `is_transaction_safe<T>::value`. [heading Input/Output Examples] [table [[`T`] [`is_transaction_safe_v<T>`]] [[`int() const transaction_safe`] [`true`]] [[`int(*)() transaction_safe`] [`true`]] [[`int(&)() transaction_safe`] [`true`]] [[`int(foo::* const)() transaction_safe`] [`true`]] [[`int() const`] [`false`]] [[`int() volatile`] [`false`]] [[`int(foo::*)() const`] [`false`]] [[`int() const`] [`false`]] [[`int() volatile`] [`false`]] [[`int() &`] [`false`]] [[`int(*)()`] [`false`]] [[`int`] [`false`]] [[`int foo::*`] [`false`]] [[`const int foo::*`] [`false`]] ] [heading Example Program] [import ../example/is_transaction_safe.cpp] [is_transaction_safe] [endsect] */ //] #endif // #ifndef BOOST_CLBL_TRTS_IS_TRANSACTION_SAFE_HPP
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