回答編集履歴
1
getを工夫
test
CHANGED
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@@ -7,6 +7,8 @@
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#include <iostream>
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8
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#include <cstdint>
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10
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+
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11
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#include <type_traits>
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class Direction {
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@@ -62,7 +64,9 @@
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}
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template<typename T = value_type, std::enable_if_t<std::is_arithmetic<T>::value, std::nullptr_t> = nullptr>
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-
constexpr
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constexpr T get() const noexcept {
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return this->value;
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@@ -76,11 +80,11 @@
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Direction a(Direction::front);
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std::cout << a.get() << std::endl;
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std::cout << a.get<unsigned>() << std::endl;
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a.turn
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a.turn_left();
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std::cout << a.get() << std::endl;
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std::cout << a.get<unsigned>() << std::endl;
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return 0;
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@@ -90,4 +94,8 @@
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97
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こんなのかな。
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99
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[動作](http://melpon.org/wandbox/permlink/MlttJTjNsdm9lv94)
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93
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-
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101
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sprout使えばコンパイル時に文字列使えるけどそこまでしたくない
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