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std::basic_ostringstream::str

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Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleto)
Arroyos
Original:
Streams
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Abstracciones
Original:
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
Cadena de I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz I / O
Original:
Array I/O
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istrstream(obsoleto)
ostrstream(obsoleto)
strstream(obsoleto)
Tipos
Original:
Types
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streamoff
streamsize
fpos
Error interfaz categoría
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_ostringstream
Las funciones miembro
Original:
Member functions
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basic_ostringstream::basic_ostringstream
basic_ostringstream::operator=
basic_ostringstream::swap
basic_ostringstream::rdbuf
Operaciones con cadenas
Original:
String operations
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basic_ostringstream::str
 
std::basic_string<CharT,Traits,Allocator> str() const;
(1)
void str(const std::basic_string<CharT,Traits,Allocator>& new_str);
(2)
Administra el contenido del objeto de cadena subyacente .
Original:
Manages the contents of the underlying string object.
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1)
Devuelve una copia de la cadena subyacente como si se aplicase rdbuf()->str() .
Original:
Returns a copy of the underlying string as if by calling rdbuf()->str().
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2)
Reemplaza el contenido de la cadena subyacente como si se aplicase rdbuf()->str(new_str) .
Original:
Replaces the contents of the underlying string as if by calling rdbuf()->str(new_str).
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Contenido

[editar] Parámetros

new_str -
nuevos contenidos de la cadena subyacente
Original:
new contents of the underlying string
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[editar] Valor de retorno

1)
una copia del objeto cadena subyacente .
Original:
a copy of the underlying string object.
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2)
(Ninguno)
Original:
(none)
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[editar] Ejemplo

#include <sstream>
#include <iostream>
int main()
{
    int n;
 
    std::istringstream in;  // could also use in("1 2")
    in.str("1 2");
    in >> n;
    std::cout << "after reading the first int from \"1 2\", the int is "
              << n << ", str() = \"" << in.str() << "\"\n";
 
    std::ostringstream out("1 2");
    out << 3;
    std::cout << "after writing the int '3' to output stream \"1 2\""
              << ", str() = \"" << out.str() << "\"\n";
 
    std::ostringstream ate("1 2", std::ios_base::ate);
    ate << 3;
    std::cout << "after writing the int '3' to append stream \"1 2\""
              << ", str() = \"" << ate.str() << "\"\n";
}

Output:

after reading the first int from "1 2", the int is 1, str() = "1 2"
after writing the int '3' to output stream "1 2", str() = "3 2"
after writing the int '3' to append stream "1 2", str() = "1 23"

[editar] Ver también

o reemplaza obtiene una copia de la cadena de caracteres asociada
Original:
replaces or obtains a copy of the associated character string
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(miembro público of std::basic_stringbuf función) [edit]