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std::basic_ostream::put

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< cpp‎ | io‎ | basic ostream

 
 
De entrada / saída da biblioteca
I / O manipuladores
C estilo de I / O
Buffers
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleta)
Streams
Original:
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
Original:
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
Original:
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
Original:
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)
 
basic_ostream& put( char_type ch );
Escreve ch personagem para o fluxo de saída.
Original:
Writes character ch to the output stream.
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Esta função é uma função de saída não formatada: ela iniciar a execução através da construção de um objeto de sentry tipo, o que esvazia os buffers de saída tie()'d se necessário e verifica os erros de fluxo. Após a construção, se os retornos de sentinela objeto false, a função retorna sem tentar qualquer saída. Se uma exceção é lançada durante a saída, então ios :: badbit está definido (a exceção é suprimida a menos exceptions()&badbit) != 0, caso em que é relançada)
Original:
This function is an unformatted output function: it begin execution by constructing an object of type sentry, which flushes the tie()'d output buffers if necessary and checks the stream errors. After construction, if the sentry object returns false, the function returns without attempting any output. If an exception is thrown during output, then ios::badbit is set (the exception is suppressed unless exceptions()&badbit) != 0, in which case it is rethrown)
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Índice

[editar] Parâmetros

ch -
caracteres para escrever
Original:
character to write
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[editar] Valor de retorno

*this

[editar] Notas

formatado
Original:
This function is not overloaded for the types signed char or unsigned char, unlike the formatted
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Ao contrário de funções de saída formatados, esta função não define o failbit se a saída não.
Original:
Unlike formatted output functions, this function does not set the failbit if the output fails.
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[editar] Exemplo

#include <fstream>
#include <iostream>
int main()
{
    std::cout.put('a'); // normal usage
    std::cout.put('\n');
 
    std::ofstream s("/does/not/exist/");
    s.clear(); // pretend the stream is good
    std::cout << "Unformatted output: ";
    s.put('c'); // this will set badbit, but not failbit
    std::cout << " fail=" << bool(s.rdstate() & s.failbit);
    std::cout << " bad=" << s.bad() << '\n';
    s.clear();
    std::cout << "Formatted output:   ";
    s << 'c'; // this will set badbit and failbit
    std::cout << " fail=" << bool(s.rdstate() & s.failbit);
    std::cout << " bad=" << s.bad() << '\n';
}

Output:

a
Unformatted output:  fail=0 bad=1
Formatted output:    fail=1 bad=1

[editar] Veja também

inserções de dados de caracteres
Original:
inserts character data
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(função) [edit]
insere blocos de caracteres
Original:
inserts blocks of characters
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(função pública membro) [edit]