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std::basic_ostream::swap

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< cpp‎ | io‎ | basic ostream

 
 
De entrada / saída da biblioteca
I / O manipuladores
C estilo de I / O
Buffers
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Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleta)
Streams
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Streams
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Abstrações
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Cordas I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz de I / O
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Array I/O
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istrstream(obsoleta)
ostrstream(obsoleta)
strstream(obsoleta)
Tipos
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Types
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streamoff
streamsize
fpos
Interface de categoria de erro
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_ostream
Objetos globais
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Global objects
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Funções de membro
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Member functions
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basic_ostream::basic_ostream
basic_ostream::~basic_ostream
basic_ostream::operator=(C++11)
Entrada formatada
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Formatted input
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basic_ostream::operator<<
Entrada não formatado
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Unformatted input
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basic_ostream::put
basic_ostream::write
Posicionamento
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Positioning
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basic_ostream::tellp
basic_ostream::seekp
Diversos
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Miscellaneous
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basic_ostream::flush
basic_ostream::swap(C++11)
Aulas-Membros
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Member classes
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basic_ostream::sentry
Não-membros funções
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Non-member functions
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operator<<(std::basic_ostream)
 
protected:
void swap(basic_ostream& rhs);
(a partir do C++ 11)
Chama basic_ios::swap(rhs) para trocar todos os membros de dados da classe base, com exceção de rdbuf(), entre *this e rhs. Esta função swap é protegido: chama-se pelas funções de swap das classes de fluxo de saída de swap std::basic_ofstream e std::basic_ostringstream, que sabe como fazer corretamente trocar os streambuffers associados.
Original:
Calls basic_ios::swap(rhs) to swap all data members of the base class, except for rdbuf(), between *this and rhs. This swap function is protected: it is called by the swap functions of the swappable output stream classes std::basic_ofstream and std::basic_ostringstream, which know how to correctly swap the associated streambuffers.
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[editar] Parâmetros

rhs -
um basic_ostream do mesmo tipo para trocar com
Original:
a basic_ostream of the same type to swap with
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[editar] Exemplo

#include <sstream>
#include <iostream>
#include <utility>
int main()
{
    std::ostringstream s1("hello");
    std::ostringstream s2("bye");
 
    s1.swap(s2); // OK, ostringstream has a public swap()
    std::swap(s1, s2); // OK, calls s1.swap(s2)
 
//  std::cout.swap(s2); // ERROR: swap is a protected member
 
    std::cout << s1.str() << '\n';
}

Output:

hello