std::boolalpha, std::noboolalpha
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| Defined in header <ios>
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| std::ios_base& boolalpha( std::ios_base& str ); |
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| std::ios_base& noboolalpha( std::ios_base& str ); |
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boolalphaを呼び出したかのようにストリームstrでstr.setf(std::ios_base::boolalpha)フラグをイネーブルにしますOriginal:
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boolalphaを呼び出したかのようにストリームstrでstr.unsetf(std::ios_base::boolalpha)フラグを無効にしますOriginal:
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std::boolalphaは、ので、それはそのようなタイプのout << std::boolalphaのいずれoutstd::basic_ostream用として、またはそのようなタイプの任意のin >> std::boolalphainためstd::basic_istreamとして式を使った式を使用してI / Oのマニピュレータと呼ばれることがあります。.Original:
std::boolalpha is an I/O manipulator, so it may be called with an expression such as out << std::boolalpha for any out of type std::basic_ostream or with an expression such as in >> std::boolalpha for any in of type std::basic_istream.The text has been machine-translated via Google Translate.
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目次 |
[編集] パラメータ
| str | - | I / Oストリームを参照します
Original: reference to I/O stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[編集] 値を返します
str(操作後のストリームへの参照)Original:
str (reference to the stream after manipulation)The text has been machine-translated via Google Translate.
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[編集] 例
#include <sstream> #include <locale> #include <iostream> int main() { // boolalpha output std::cout << std::boolalpha << "boolalpha true: " << true << '\n' << "boolalpha false: " << false << '\n'; std::cout << std::noboolalpha << "noboolalpha true: " << true << '\n' << "noboolalpha false: " << false << '\n'; // booalpha parse bool b1, b2; std::istringstream is("true false"); is >> std::boolalpha >> b1 >> b2; std::cout << '\"' << is.str() << "\" parsed as " << b1 << ' ' << b2 << '\n'; }
Output:
boolalpha true: true boolalpha false: false noboolalpha true: 1 noboolalpha false: 0 "true false" parsed as 1 0
[編集] も参照してください
| 指定されたios_baseのフラグをクリアします Original: clears the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能) | |
| 指定されたios_baseのフラグが設定されます Original: sets the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (機能) | |
| [仮想] |
ブールtrueの名前として使用する文字列を提供します Original: provides the string to use as the name of the boolean true The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (仮想protectedメンバ関数of std::numpunct)
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| [仮想] |
ブールfalseの名前として使用する文字列を提供します Original: provides the string to use as the name of the boolean false The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (仮想protectedメンバ関数of std::numpunct)
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