std::basic_filebuf::pbackfail
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| protected: virtual int_type pbackfail( int_type c = Traits::eof() ) |
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Coloca o carácter
1) c de volta para a área de get, em uma das três formas:Original:
Puts the character
c back into the get area, in one of the three ways:The text has been machine-translated via Google Translate.
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Se
2) c não é o carácter EOF, conforme determinado ligando Traits::eq_int_type(c,traits::eof()) e se existe espaço para um putback, e se c é exactamente o caractere que foi mais recentemente ler a partir da área get, conforme determinado por Traits::eq(to_char_type(c),gptr()[-1]), em seguida, simplesmente por um gptr() decrementa.Original:
If
c is not the EOF character, as determined by calling Traits::eq_int_type(c,traits::eof()) and if there is room for a putback, and if c is exactly the character that was most recently read from the get area, as determined by Traits::eq(to_char_type(c),gptr()[-1]), then simply decrements gptr() by one.The text has been machine-translated via Google Translate.
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Se
3) c não é o personagem EOF, como determinado chamando Traits::eq_int_type(c,traits::eof()) e se há espaço para uma putback, e se o tampão é permitido modificar o GET área, diminui gptr() e escreve c para lá. Note-se que esta não modifica a seqüência de caracteres associada (o arquivo), mas apenas o começo área na memória.Original:
If
c is not the EOF character, as determined by calling Traits::eq_int_type(c,traits::eof()) and if there is room for a putback, and if the buffer is allowed to modify the get area, decrements gptr() and writes c to there. Note that this does not modify the associated character sequence (the file), but only the get area in memory.The text has been machine-translated via Google Translate.
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Se
c é o personagem EOF (Traits::eq_int_type(c,traits::eof()) retornos true), e se há espaço para uma putback, diminui gptr(). Isto tem o efeito de tornar o último caracter lido disponível para a leitura, mais uma vez.Original:
If
c is the EOF character (Traits::eq_int_type(c,traits::eof()) returns true), and if there is room for a putback, decrements gptr(). This has the effect of making the last character read available for reading once again.The text has been machine-translated via Google Translate.
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Se o arquivo não está aberto (is_open()==false, esta função retorna Traits::eof() imediatamente.
Original:
If the file is not open (is_open()==false, this function returns Traits::eof() immediately.
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Índice |
[editar] Parâmetros
| c | - | o personagem putback, ou eof
Original: the character to putback, or eof The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[editar] Valor de retorno
1-2) c
3) Traits::not_eof(c)
Traits::eof() em caso de falha.
Original:
Traits::eof() in case of failure.
The text has been machine-translated via Google Translate.
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[editar] Exemplo
| Esta seção está incompleta Motivo: sem exemplo |
[editar] Veja também
| [virtual] |
coloca um caractere de volta para a sequência de entrada, possivelmente modificando a sequência de entrada Original: puts a character back into the input sequence, possibly modifying the input sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtual protegido of std::basic_streambuf função de membro)
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| move o ponteiro próximo da sequência de entrada volta a um Original: moves the next pointer in the input sequence back by one The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (of std::basic_streambuf função pública membro)
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| coloca um personagem de volta na seqüência de entrada Original: puts one character back in the input sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (of std::basic_streambuf função pública membro)
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| unextracts um personagem Original: unextracts a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (of std::basic_istream função pública membro)
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| coloca personagem em fluxo de entrada Original: puts character into input stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (of std::basic_istream função pública membro)
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