回答編集履歴
2
fix code
answer
CHANGED
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@@ -13,7 +13,7 @@
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13
13
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{ callback_(); }
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14
14
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15
15
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private:
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16
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-
std::function<void()> callback_ = []{}
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16
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+
std::function<void()> callback_ = []{};
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17
17
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};
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18
18
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```
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19
19
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[http://melpon.org/wandbox/permlink/Yz041bVYUteFs8P0](http://melpon.org/wandbox/permlink/Yz041bVYUteFs8P0)
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1
よりC++11/14風に
answer
CHANGED
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@@ -4,17 +4,16 @@
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4
4
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5
5
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class some_class {
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6
6
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public:
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7
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-
some_class()
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7
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+
some_class() = default;
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8
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-
: callback_([]{}) {}
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9
8
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10
9
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explicit some_class(std::function<void()> f)
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11
10
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: callback_(std::move(f)) {}
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12
11
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13
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-
~some_class()
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12
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+
~some_class() noexcept(false)
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14
13
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{ callback_(); }
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15
14
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16
15
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private:
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17
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-
std::function<void()> callback_
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16
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+
std::function<void()> callback_ = []{}
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18
17
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};
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19
18
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```
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20
19
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[http://melpon.org/wandbox/permlink/Yz041bVYUteFs8P0](http://melpon.org/wandbox/permlink/Yz041bVYUteFs8P0)
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