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- [/
- Copyright 2007 John Maddock.
- 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).
- ]
- [section:integral_promotion integral_promotion]
- template <class T>
- struct integral_promotion
- {
- typedef __below type;
- };
-
- template <class T> using integral_promotion_t = typename integral_promotion<T>::type; // C++11 and above
- __type If integral promotion can be applied to an rvalue of type `T`, then
- applies integral promotion to `T` and keeps cv-qualifiers of `T`,
- otherwise leaves `T` unchanged.
- __std_ref 4.5 except 4.5/3 (integral bit-field).
- __header ` #include <boost/type_traits/integral_promotion.hpp>` or ` #include <boost/type_traits.hpp>`
- [table Examples
- [ [Expression] [Result Type]]
- [[`integral_promotion<short const>::type`][`int const`]]
- [[`integral_promotion<short&>::type`][`short&`]]
- [[`integral_promotion<enum std::float_round_style>::type`][`int`]]
- ]
- [endsect]
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