Boost.Hana  1.7.1
Your standard library for metaprogramming
std::integral_constant< T, v > Struct Template Reference


template<typename T, T v>
struct std::integral_constant< T, v >

Adapter for std::integral_constants.

Provided models

  1. Constant and IntegralConstant
    A std::integral_constant is a model of the IntegralConstant and Constant concepts, just like hana::integral_constants are. As a consequence, they are also implicitly a model of the concepts provided for all models of Constant.
    // Copyright Louis Dionne 2013-2017
    // Distributed under the Boost Software License, Version 1.0.
    // (See accompanying file or copy at
    #include <type_traits>
    namespace hana = boost::hana;
    static_assert(hana::value(std::integral_constant<int, 3>{}) == 3, "");
    static_assert(std::integral_constant<int, 3>::value == 3, "");
    int main() { }
    Defines macros to perform different kinds of assertions.
    Defines boost::hana::equal.
    Adapts std::integral_constant for use with Hana.
    constexpr auto equal
    Returns a Logical representing whether x is equal to y.
    Definition: equal.hpp:64
    constexpr auto not_equal
    Returns a Logical representing whether x is not equal to y.
    Definition: not_equal.hpp:54
    constexpr auto value
    Return the compile-time value associated to a constant.
    Definition: value.hpp:54
    Equivalent to BOOST_HANA_CONSTANT_ASSERT, but not influenced by the BOOST_HANA_CONFIG_DISABLE_ASSERTI...
    Definition: assert.hpp:239
    Defines boost::hana::integral_constant.
    Namespace containing everything in the library.
    Definition: accessors.hpp:20
    Defines boost::hana::not_equal.
    Adapter for std::integral_constants.
    Definition: integral_constant.hpp:37