標準ライブラリヘッダー <ostream>
From cppreference.com
このヘッダーは入出力ライブラリの一部です。
クラス | ||
| 与えられた抽象デバイス(std::basic_streambuf)をラップし 高水準な出力インターフェースを提供する (クラステンプレート) | ||
| std::ostream | std::basic_ostream<char> (typedef) | |
| std::wostream | std::basic_ostream<wchar_t> (typedef) | |
関数 | ||
| 文字データを挿入する、または右辺値ストリームに挿入する (function template) | ||
| (C++23) |
引数の書式化された表現を出力する (関数テンプレート) | |
| (C++23) |
引数の書式化された表現に'\n'を付加して出力する (関数テンプレート) | |
| (C++23) |
型消去された引数表現を使用して、Unicode対応の出力を行う (function) | |
| 型消去された引数表現を使用して、文字データを出力する (function) | ||
マニピュレーター | ||
| '\n'を出力し、出力ストリームをフラッシュする (関数テンプレート) | ||
| '\0'を出力します。 (関数テンプレート) | ||
| 出力ストリームをフラッシュする (関数テンプレート) | ||
| (C++20) |
ストリームのbasic_syncbufがフラッシュ時に内容を出力するかを制御する (関数テンプレート) | |
| (C++20) |
ストリームをフラッシュし、basic_syncbufを使用している場合はその内容を出力します。 (関数テンプレート) | |
[編集] 概要
namespace std { template<class CharT, class Traits = char_traits<CharT>> class basic_ostream; using ostream = basic_ostream<char>; using wostream = basic_ostream<wchar_t>; template<class CharT, class Traits> basic_ostream<CharT, Traits>& endl(basic_ostream<CharT, Traits>& os); template<class CharT, class Traits> basic_ostream<CharT, Traits>& ends(basic_ostream<CharT, Traits>& os); template<class CharT, class Traits> basic_ostream<CharT, Traits>& flush(basic_ostream<CharT, Traits>& os); template<class CharT, class Traits> basic_ostream<CharT, Traits>& emit_on_flush(basic_ostream<CharT, Traits>& os); template<class CharT, class Traits> basic_ostream<CharT, Traits>& noemit_on_flush(basic_ostream<CharT, Traits>& os); template<class CharT, class Traits> basic_ostream<CharT, Traits>& flush_emit(basic_ostream<CharT, Traits>& os); template<class Ostream, class T> Ostream&& operator<<(Ostream&& os, const T& x); // print functions template<class... Args> void print(ostream& os, format_string<Args...> fmt, Args&&... args); template<class... Args> void println(ostream& os, format_string<Args...> fmt, Args&&... args); void println(ostream& os); void vprint_unicode(ostream& os, string_view fmt, format_args args); void vprint_nonunicode(ostream& os, string_view fmt, format_args args); }
[編集] クラステンプレート std::basic_ostream
namespace std { template<class CharT, class Traits = char_traits<CharT>> class basic_ostream : virtual public basic_ios<CharT, Traits> { public: // types (inherited from basic_ios) using char_type = CharT; using int_type = typename Traits::int_type; using pos_type = typename Traits::pos_type; using off_type = typename Traits::off_type; using traits_type = Traits; // constructor/destructor explicit basic_ostream(basic_streambuf<char_type, Traits>* sb); virtual ~basic_ostream(); // prefix/suffix class sentry; // formatted output basic_ostream& operator<<(basic_ostream& (*pf)(basic_ostream&)); basic_ostream& operator<<(basic_ios<CharT, Traits>& (*pf)(basic_ios<CharT, Traits>&)); basic_ostream& operator<<(ios_base& (*pf)(ios_base&)); basic_ostream& operator<<(bool n); basic_ostream& operator<<(short n); basic_ostream& operator<<(unsigned short n); basic_ostream& operator<<(int n); basic_ostream& operator<<(unsigned int n); basic_ostream& operator<<(long n); basic_ostream& operator<<(unsigned long n); basic_ostream& operator<<(long long n); basic_ostream& operator<<(unsigned long long n); basic_ostream& operator<<(float f); basic_ostream& operator<<(double f); basic_ostream& operator<<(long double f); basic_ostream& operator<<(/*extended-floating-point-type*/ f); basic_ostream& operator<<(const void* p); basic_ostream& operator<<(const volatile void* p); basic_ostream& operator<<(nullptr_t); basic_ostream& operator<<(basic_streambuf<char_type, Traits>* sb); // unformatted output basic_ostream& put(char_type c); basic_ostream& write(const char_type* s, streamsize n); basic_ostream& flush(); // seeks pos_type tellp(); basic_ostream& seekp(pos_type); basic_ostream& seekp(off_type, ios_base::seekdir); protected: // copy/move constructor basic_ostream(const basic_ostream&) = delete; basic_ostream(basic_ostream&& rhs); // assignment and swap basic_ostream& operator=(const basic_ostream&) = delete; basic_ostream& operator=(basic_ostream&& rhs); void swap(basic_ostream& rhs); }; // character inserters template<class CharT, class Traits> basic_ostream<CharT, Traits>& operator<<(basic_ostream<CharT, Traits>&, CharT); template<class CharT, class Traits> basic_ostream<CharT, Traits>& operator<<(basic_ostream<CharT, Traits>&, char); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, char); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, signed char); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, unsigned char); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, wchar_t) = delete; template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, char8_t) = delete; template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, char16_t) = delete; template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, char32_t) = delete; template<class Traits> basic_ostream<wchar_t, Traits>& operator<<(basic_ostream<wchar_t, Traits>&, char8_t) = delete; template<class Traits> basic_ostream<wchar_t, Traits>& operator<<(basic_ostream<wchar_t, Traits>&, char16_t) = delete; template<class Traits> basic_ostream<wchar_t, Traits>& operator<<(basic_ostream<wchar_t, Traits>&, char32_t) = delete; template<class CharT, class Traits> basic_ostream<CharT, Traits>& operator<<(basic_ostream<CharT, Traits>&, const CharT*); template<class CharT, class Traits> basic_ostream<CharT, Traits>& operator<<(basic_ostream<CharT, Traits>&, const char*); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, const char*); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, const signed char*); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, const unsigned char*); template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, const wchar_t*) = delete; template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, const char8_t*) = delete; template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, const char16_t*) = delete; template<class Traits> basic_ostream<char, Traits>& operator<<(basic_ostream<char, Traits>&, const char32_t*) = delete; template<class Traits> basic_ostream<wchar_t, Traits>& operator<<(basic_ostream<wchar_t, Traits>&, const char8_t*) = delete; template<class Traits> basic_ostream<wchar_t, Traits>& operator<<(basic_ostream<wchar_t, Traits>&, const char16_t*) = delete; template<class Traits> basic_ostream<wchar_t, Traits>& operator<<(basic_ostream<wchar_t, Traits>&, const char32_t*) = delete; }
[編集] クラス std::basic_ostream::sentry
namespace std { template<class CharT, class Traits> class basic_ostream<CharT, Traits>::sentry { bool ok_; // exposition only public: explicit sentry(basic_ostream& os); ~sentry(); explicit operator bool() const { return ok_; } sentry(const sentry&) = delete; sentry& operator=(const sentry&) = delete; }; }