std::basic_ofstream::basic_ofstream
De cppreference.com
<metanoindex/>
<tbody> </tbody> basic_ofstream(); |
(1) | |
basic_ofstream( const char* filename, {{#pad:|14}} ios_base::openmode mode = ios_base::out ); |
(2) | |
basic_ofstream( const string& filename, {{#pad:|14}} ios_base::openmode mode = ios_base::out ); |
(3) | (desde C++11) |
basic_ofstream( basic_ofstream&& other ); |
(4) | (desde C++11) |
basic_ofstream( const basic_ofstream& rhs) = delete; |
(5) | |
Constrói fluxo de arquivo novo.
Original:
Constructs new file stream.
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1)
Construtor padrão: constrói um fluxo que não está associado a um arquivo: default-constrói a std::basic_filebuf e constrói a base com o ponteiro para esse membro padrão construído std::basic_filebuf.
Original:
Default constructor: constructs a stream that is not associated with a file: default-constructs the std::basic_filebuf and constructs the base with the pointer to this default-constructed std::basic_filebuf member.
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2)
Primeiro, executa os mesmos passos que o construtor padrão, então asssociate o fluxo com um arquivo chamando
rdbuf()->open(filename, mode | std::ios_base::out).. Se a chamada open () retorna um ponteiro nulo, define setstate(failbit).Original:
First, performs the same steps as the default constructor, then asssociate the stream with a file by calling
rdbuf()->open(filename, mode | std::ios_base::out).. If the open() call returns a null pointer, sets setstate(failbit).The text has been machine-translated via Google Translate.
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3)
Mesmo que
basic_ofstream(filename.c_str(), mode). Original:
Same as
basic_ofstream(filename.c_str(), mode). The text has been machine-translated via Google Translate.
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4)
Mova construtor. Primeiro, mover-constrói a classe base de
other (que não afeta o ponteiro rdbuf()), em seguida, passar-constrói o membro std::basic_filebuf, em seguida, chama this->set_rdbuf() para instalar o novo basic_filebuf como o ponteiro rdbuf() na classe base.Original:
Move constructor. First, move-constructs the base class from
other (which does not affect the rdbuf() pointer), then move-constructs the std::basic_filebuf member, then calls this->set_rdbuf() to install the new basic_filebuf as the rdbuf() pointer in the base class.The text has been machine-translated via Google Translate.
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5)
O construtor de cópia é apagado: esta classe não é copiável.
Original:
The copy-constructor is deleted: this class is not copyable.
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Parâmetros
| filename | - | o nome do arquivo a ser aberto
Original: the name of the file to be opened The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| mode | - | especifica o modo de fluxo aberto. Ele é o tipo de máscara de bits, as seguintes constantes são definidas:
Original: specifies stream open mode. It is bitmask type, the following constants are defined:
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| other | - | outro fluxo de arquivo para usar como fonte
Original: another file stream to use as source The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Exemplo
#include <fstream>
#include <utility>
#include <string>
int main()
{
std::basic_ofstream f0;
std::ofstream f1("test.bin", std::ios::binary);
std::string name = "example.txt";
std::ofstream f2(name);
std::ofstream f3(std::move(f1));
}