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add example: compile-time lifegame
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bolero-MURAKAMI
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3 changed files with 318 additions and 0 deletions
222
example/lifegame/main.cpp
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222
example/lifegame/main.cpp
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/*=============================================================================
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Copyright (c) 2011-2015 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#include <sprout/config.hpp>
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#include <sprout/container/traits.hpp>
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#include <sprout/container/functions.hpp>
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#include <sprout/container/indexes.hpp>
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#include <sprout/algorithm/fixed/unfold.hpp>
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#include <sprout/utility/pair.hpp>
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#include <sprout/array.hpp>
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//
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// next_cell
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//
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template<typename Value, typename Size>
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inline SPROUT_CONSTEXPR Value
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next_cell(Value const& val, Size n) {
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return val ? n == 2 || n == 3 : n == 3;
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}
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template<typename Container, typename Difference1, typename Difference2>
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inline SPROUT_CONSTEXPR typename sprout::container_traits<typename sprout::container_traits<Container>::value_type>::value_type
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next_cell(Container const& cont, Difference1 i, Difference2 j) {
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return i == 0
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// +----
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// | o x
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// | x x
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? j == 0
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? ::next_cell(
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cont[i][j],
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0
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+ cont[i][j + 1]
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+ cont[i + 1][j] + cont[i + 1][j + 1]
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)
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// ----+
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// x o |
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// x x |
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: j == static_cast<Difference2>(sprout::size(cont[i]) - 1)
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? ::next_cell(
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cont[i][j],
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0
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+ cont[i][j - 1]
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+ cont[i + 1][j - 1] + cont[i + 1][j]
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)
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// -----
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// x o x
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// x x x
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: ::next_cell(
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cont[i][j],
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0
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+ cont[i][j - 1] + cont[i][j + 1]
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+ cont[i + 1][j - 1] + cont[i + 1][j] + cont[i + 1][j + 1]
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)
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: i == static_cast<Difference1>(sprout::size(cont) - 1)
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// | x x
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// | o x
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// +----
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? j == 0
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? ::next_cell(
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cont[i][j],
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0
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+ cont[i - 1][j] + cont[i - 1][j + 1]
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+ cont[i][j + 1]
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)
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// x x |
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// x o |
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// ----+
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: j == static_cast<Difference2>(sprout::size(cont[i]) - 1)
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? ::next_cell(
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cont[i][j],
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0
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+ cont[i - 1][j - 1] + cont[i - 1][j]
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+ cont[i][j - 1]
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)
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// x x x
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// x o x
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// -----
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: ::next_cell(
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cont[i][j],
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0
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+ cont[i - 1][j - 1] + cont[i - 1][j] + cont[i - 1][j + 1]
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+ cont[i][j - 1] + cont[i][j + 1]
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)
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// | x x
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// | o x
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// | x x
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: j == 0
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? ::next_cell(
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cont[i][j],
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0
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+ cont[i - 1][j] + cont[i - 1][j + 1]
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+ cont[i][j + 1]
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+ cont[i + 1][j] + cont[i + 1][j + 1])
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// x x |
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// x o |
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// x x |
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: j == static_cast<Difference2>(sprout::size(cont[i]) - 1)
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? ::next_cell(
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cont[i][j],
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0
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+ cont[i - 1][j - 1] + cont[i - 1][j]
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+ cont[i][j - 1]
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+ cont[i + 1][j - 1] + cont[i + 1][j]
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)
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// x x x
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// x o x
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// x x x
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: ::next_cell(
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cont[i][j],
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0
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+ cont[i - 1][j - 1] + cont[i - 1][j] + cont[i - 1][j + 1]
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+ cont[i][j - 1] + cont[i][j + 1]
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+ cont[i + 1][j - 1] + cont[i + 1][j] + cont[i + 1][j + 1]
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)
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;
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}
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namespace detail {
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template<typename Container, sprout::index_t... Js>
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inline SPROUT_CONSTEXPR typename sprout::container_traits<Container>::value_type
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next_cells_2(Container const& cont, sprout::index_t i, sprout::index_tuple<Js...>) {
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return sprout::remake<typename sprout::container_traits<Container>::value_type>(
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cont[i], sprout::size(cont[i]),
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::next_cell(cont, i, Js)...
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);
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}
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template<typename Container, sprout::index_t... Is>
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inline SPROUT_CONSTEXPR Container
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next_cells_1(Container const& cont, sprout::index_tuple<Is...>) {
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return sprout::remake<Container>(
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cont, sprout::size(cont),
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detail::next_cells_2(cont, Is, sprout::container_indexes<typename sprout::container_traits<Container>::value_type>::make())...
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);
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}
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} // namespace detail
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//
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// next_cells
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//
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template<typename Container>
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inline SPROUT_CONSTEXPR Container
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next_cells(Container const& cont) {
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return detail::next_cells_1(cont, sprout::container_indexes<Container>::make());
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}
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namespace detail {
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struct gen_next_cells {
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public:
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template<typename Container>
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SPROUT_CONSTEXPR sprout::pair<Container, Container>
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operator()(Container const& cont) const {
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return sprout::pair<Container, Container>(cont, ::next_cells(cont));
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}
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};
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} // namespace detail
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//
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// next_cells
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//
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template<std::size_t N, typename Container>
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inline SPROUT_CONSTEXPR sprout::array<Container, N>
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next_cells(Container const& cont) {
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return sprout::fixed::unfold<sprout::array<Container, N> >(detail::gen_next_cells(), cont);
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}
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#include <sprout/array.hpp>
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#include <testspr/print.hpp>
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#define BOARD_WIDTH 16
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#define BOARD_HEIGHT 16
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#define BOARD_COUNT 16
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template<typename Container>
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void SPROUT_NON_CONSTEXPR print_board(Container const& board) {
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testspr::print_hl();
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for (auto&& line : board) {
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for (auto&& cell : line) {
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testspr::print(cell ? "■" : "□", ' ');
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}
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testspr::print_ln();
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}
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}
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int main() {
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typedef sprout::array<sprout::array<int, BOARD_WIDTH>, BOARD_HEIGHT> board_type;
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// セルの初期配置
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#define _ 0
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#define X 1
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SPROUT_STATIC_CONSTEXPR board_type board0
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{{
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, X, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, X, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, X, X, _, _, X, X, X, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}},
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{{_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _}}
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}};
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#undef _
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#undef X
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// ライフゲームの実行
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SPROUT_STATIC_CONSTEXPR auto boards = ::next_cells<BOARD_COUNT>(board0);
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// 表示
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for (auto&& board : boards) {
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::print_board(board);
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}
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}
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@ -15,5 +15,6 @@
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#include <sprout/stateful/typed_counter.hpp>
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#include <sprout/stateful/typed_rand.hpp>
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#include <sprout/stateful/typed_slot.hpp>
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#include <sprout/stateful/type_index.hpp>
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#endif // #ifndef SPROUT_STATEFUL_HPP
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95
sprout/stateful/type_index.hpp
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95
sprout/stateful/type_index.hpp
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@ -0,0 +1,95 @@
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/*=============================================================================
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Copyright (c) 2011-2015 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_STATEFUL_TYPE_INDEX_HPP
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#define SPROUT_STATEFUL_TYPE_INDEX_HPP
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#include <typeinfo>
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#include <sprout/config.hpp>
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#include <sprout/workaround/std/cstddef.hpp>
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#include <sprout/functional/hash.hpp>
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#include <sprout/stateful/typed_id.hpp>
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namespace sprout {
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#ifndef SPROUT_CONFIG_DISABLE_CONSTEXPR
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class type_index {
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private:
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int id_;
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public:
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template<typename T>
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explicit SPROUT_CONSTEXPR type_index(sprout::typed_id<T>) SPROUT_NOEXCEPT
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: id_(sprout::typed_id<T>::value)
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{}
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explicit SPROUT_CONSTEXPR type_index(int id) SPROUT_NOEXCEPT
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: id_(id)
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{}
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SPROUT_CONSTEXPR bool
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operator==(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
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return id_ == rhs.id_;
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}
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SPROUT_CONSTEXPR bool
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operator!=(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
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return !(*this == rhs);
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}
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SPROUT_CONSTEXPR bool
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operator<(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
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return id_ < rhs.id_;
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}
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SPROUT_CONSTEXPR bool
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operator<=(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
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return !(rhs < *this);
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}
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SPROUT_CONSTEXPR bool
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operator>(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
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return rhs < *this;
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}
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SPROUT_CONSTEXPR bool
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operator>=(sprout::type_index const& rhs) const SPROUT_NOEXCEPT {
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return !(*this < rhs);
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}
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SPROUT_CONSTEXPR std::size_t
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hash_code() const SPROUT_NOEXCEPT {
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return sprout::hash_value(id_);
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}
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} ;
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#endif
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} // namespace sprout
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#ifndef SPROUT_CONFIG_DISABLE_CONSTEXPR
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namespace sprout {
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//
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// hash_value
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//
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inline SPROUT_CONSTEXPR std::size_t
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hash_value(sprout::type_index const& v) {
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return v.hash_code();
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}
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} // namespace sprout
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namespace std {
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#if defined(__clang__)
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# pragma clang diagnostic push
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# pragma clang diagnostic ignored "-Wmismatched-tags"
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#endif
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//
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// hash
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//
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template<>
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struct hash<sprout::type_index>
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: public sprout::hash<sprout::type_index>
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{};
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#if defined(__clang__)
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# pragma clang diagnostic pop
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#endif
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} // namespace std
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#endif
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#endif // #ifndef SPROUT_STATEFUL_TYPE_INDEX_HPP
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