std::fseek
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| Definido no cabeçalho <cstdio>
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| int fseek( std::FILE* stream, long offset, int origin ); |
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Define o indicador de posição de arquivo do fluxo
stream arquivo da seguinte maneira:Original:
Sets the file position indicator for the file stream
stream as follows:The text has been machine-translated via Google Translate.
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Se o
stream está aberto no modo binário, a nova posição é exactamente medidos offset bytes a partir do início do processo é origin SEEK_SET é, a partir da posição actual ficheiro se origin é SEEK_CUR e, a partir do final do ficheiro, se é origin SEEK_END. Alguns fluxos binários podem não suportar a SEEK_END.Original:
If the
stream is open in binary mode, the new position is exactly offset bytes measured from the beginning of the file is origin is SEEK_SET, from the current file position if origin is SEEK_CUR, and from the end of the file if origin is SEEK_END. Some binary streams may not support the SEEK_END.The text has been machine-translated via Google Translate.
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Se o
stream está aberto em modo texto, os valores só são suportados para offset zero (que funciona com qualquer origin) e um valor retornado por uma chamada anterior para std::ftell em um fluxo associado com o mesmo arquivo (que só funciona com origin de SEEK_SET.Original:
If the
stream is open in text mode, the only supported values for offset are zero (which works with any origin) and a value returned by an earlier call to std::ftell on a stream associated with the same file (which only works with origin of SEEK_SET.The text has been machine-translated via Google Translate.
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Além de mudar o indicador de posição do arquivo,
fseek desfaz os efeitos da std::ungetc e limpa o fim do estatuto de arquivo, se for o caso.Original:
In addition to changing the file position indicator,
fseek undoes the effects of std::ungetc and clears the end-of-file status, if applicable.The text has been machine-translated via Google Translate.
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Se uma leitura ou escrita de erro ocorre, o indicador de erro para o fluxo ( std::ferror) é definida a posição do arquivo e não é afetado.
Original:
If a read or write error occurs, the error indicator for the stream (std::ferror) is set and the file position is unaffected.
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Índice |
[editar] Parâmetros
| stream | - | arquivo de fluxo de modificar
Original: file stream to modify The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| offset | - | número de caracteres a deslocar a posição relativa à origem
Original: number of characters to shift the position relative to origin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| origin | - | posição para a qual
offset é adicionado. Ele pode ter um dos seguintes valores: SEEK_SET, SEEK_CUR, SEEK_ENDOriginal: position to which offset is added. It can have one of the following values: SEEK_SET, SEEK_CUR, SEEK_ENDThe 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
0 no sucesso valor diferente de zero, caso contrário.
Original:
0 upon success, nonzero value otherwise.
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[editar] Exemplo
| Esta seção está incompleta Motivo: sem exemplo |
[editar] Veja também
| move o indicador de posição de arquivo para um local específico em um arquivo Original: moves the file position indicator to a specific location in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) | |
| fica o indicador de posição de arquivo Original: gets the file position indicator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) | |
| retorna o indicador de posição de arquivo atual Original: returns the current file position indicator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) | |
| move o indicador de posição do arquivo para o início em um arquivo Original: moves the file position indicator to the beginning in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) | |
| Documentação C para fseek
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