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      std::fseek

      De cppreference.com
      < cpp | io | c

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      <metanoindex/>

       
      C++
       
      De entrada / saída da biblioteca
      I / O manipuladores
      C estilo de I / O
      Buffers
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      Buffers
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      (obsoleta)
      Streams
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      Streams
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      Abstrações
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      Abstractions
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      File I / O
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      File I/O
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      Cordas I / O
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      String I/O
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      Matriz de I / O
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      Array I/O
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      Tipos
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      Interface de categoria de erro
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      Error category interface
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      (C++11)
      (C++11)
       
      C estilo de I / O
      Funções
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      Functions
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      Arquivo de acesso
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      File access
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      Directa de entrada / saída
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      Direct input/output
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      Não formatado entrada / saída
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      Unformatted input/output
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      Formatado de entrada / saída
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      Formatted input/output
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      Arquivo de posicionamento
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      File positioning
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      De tratamento de erros
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      Error handling
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      Operações em arquivos
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      Operations on files
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      <tbody> </tbody>
      Definido no cabeçalho <cstdio>
      int fseek( std::FILE* stream, long offset, int origin );
      Define o indicador de posição de arquivo do fluxo stream arquivo da seguinte maneira:
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      Sets the file position indicator for the file stream stream as follows:
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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.
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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.
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      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.
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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.
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      In addition to changing the file position indicator, fseek undoes the effects of std::ungetc and clears the end-of-file status, if applicable.
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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.
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      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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      Parâmetros

      stream -
      arquivo de fluxo de modificar
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      file stream to modify
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      offset -
      número de caracteres a deslocar a posição relativa à origem
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      number of characters to shift the position relative to origin
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      origin -
      posição para a qual offset é adicionado. Ele pode ter um dos seguintes valores: SEEK_SET, SEEK_CUR, SEEK_END
      Original:
      position to which offset is added. It can have one of the following values: SEEK_SET, SEEK_CUR, SEEK_END
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      Valor de retorno

      0 no sucesso valor diferente de zero, caso contrário.
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      0 upon success, nonzero value otherwise.
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      Exemplo

      Esta seção está incompleta
      Motivo: sem exemplo

      Veja também
      move o indicador de posição de arquivo para um local específico em um arquivo
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      moves the file position indicator to a specific location in a file
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      (função) [edit]
      fica o indicador de posição de arquivo
      Original:
      gets the file position indicator
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      (função) [edit]
      retorna o indicador de posição de arquivo atual
      Original:
      returns the current file position indicator
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      (função) [edit]
      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
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      (função) [edit]
      Documentação C para fseek