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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| # wcin | ||
| * iostream[meta header] | ||
| * std[meta namespace] | ||
| * variable[meta id-type] | ||
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| ```cpp | ||
| namespace std { | ||
| extern wistream wcin; | ||
| } | ||
| ``` | ||
| * wistream[link ../istream/basic_istream.md] | ||
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| ## 概要 | ||
| `wcin` は、標準入力に対するワイド文字用の入力ストリームオブジェクトである。 | ||
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| すなわち、[`std::basic_streambuf`](../streambuf/basic_streambuf.md)から派生していて`<cstdio>`の`stdin`オブジェクトに結びつけられているストリームバッファから入力を受ける。 | ||
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| 本オブジェクトは、初期化が完了すると [`tie`](../ios/basic_ios/tie.md)`()` が `&`[`wcout`](wcout.md) を返すようになる。 | ||
| その他の状態は、[`basic_ios`](../ios/basic_ios.md)`::`[`init`](../ios/basic_ios/init.md) の事後条件と同様である。 | ||
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| `wcin`は`wide character input`を意味する。<sup><a id="cite_ref-1" href="#cite-1">[1]</a></sup> | ||
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| ## 例 | ||
| ```cpp example | ||
| #include <iostream> | ||
| #include <string> | ||
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| int main() | ||
| { | ||
| std::wcout << L"名前を入力してください: "; | ||
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| std::wstring s; // std::wcin.tie() == &std::wcout であるため、 | ||
| std::wcin >> s; // std::wcout を明示的に flush しなくても | ||
| // 上記の出力が flush されることが保証されている | ||
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| std::wcout << L"あなたの名前は「" << s << L"」ですね。" << std::endl; | ||
| } | ||
| ``` | ||
| * std::wcin[color ff0000] | ||
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| ### 出力例 | ||
| ``` | ||
| 名前を入力してください:たろう | ||
| あなたの名前は「たろう」ですね | ||
| ``` | ||
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| ## バージョン | ||
| ### 言語 | ||
| - C++98 | ||
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| ## 出典 | ||
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| 1. **<a id="cite-1" href="#cite_ref-1">^</a>** <cite>[Stroustrup: C++ Style and Technique FAQ](http://www.stroustrup.com/bs_faq2.html#cout)</cite>(2018-08-21 17:01 JST 閲覧) |
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この内部リンクを消してはいけないですね