Edit: /usr/include/boost/mp11/integer_sequence.hpp (2914B)
#ifndef BOOST_MP11_INTEGER_SEQUENCE_HPP_INCLUDED
#define BOOST_MP11_INTEGER_SEQUENCE_HPP_INCLUDED
// Copyright 2015, 2017, 2019 Peter Dimov.
//
// 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
#include
#include
#if defined(__has_builtin)
# if __has_builtin(__make_integer_seq)
# define BOOST_MP11_HAS_MAKE_INTEGER_SEQ
# endif
#endif
namespace boost
{
namespace mp11
{
// integer_sequence
template struct integer_sequence
{
};
#if defined(BOOST_MP11_HAS_MAKE_INTEGER_SEQ)
template using make_integer_sequence = __make_integer_seq;
#else
// detail::make_integer_sequence_impl
namespace detail
{
// iseq_if_c
template struct iseq_if_c_impl;
template struct iseq_if_c_impl
{
using type = T;
};
template struct iseq_if_c_impl
{
using type = E;
};
template using iseq_if_c = typename iseq_if_c_impl::type;
// iseq_identity
template struct iseq_identity
{
using type = T;
};
template struct append_integer_sequence;
template struct append_integer_sequence, integer_sequence>
{
using type = integer_sequence< T, I..., ( J + sizeof...(I) )... >;
};
template struct make_integer_sequence_impl;
template struct make_integer_sequence_impl_
{
private:
static_assert( N >= 0, "make_integer_sequence: N must not be negative" );
static T const M = N / 2;
static T const R = N % 2;
using S1 = typename make_integer_sequence_impl::type;
using S2 = typename append_integer_sequence::type;
using S3 = typename make_integer_sequence_impl::type;
using S4 = typename append_integer_sequence::type;
public:
using type = S4;
};
template struct make_integer_sequence_impl: iseq_if_c>, iseq_if_c>, make_integer_sequence_impl_ > >
{
};
} // namespace detail
// make_integer_sequence
template using make_integer_sequence = typename detail::make_integer_sequence_impl::type;
#endif // defined(BOOST_MP11_HAS_MAKE_INTEGER_SEQ)
// index_sequence
template using index_sequence = integer_sequence;
// make_index_sequence
template using make_index_sequence = make_integer_sequence;
// index_sequence_for
template using index_sequence_for = make_integer_sequence;
} // namespace mp11
} // namespace boost
#endif // #ifndef BOOST_MP11_INTEGER_SEQUENCE_HPP_INCLUDED