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fsetpos function >> sets file pointer of stream to a new position >> C Programming

fgetpos :

  1. Header File  :  Stdio.h
  2. fsetpos sets [positions] the file pointer of a stream
  3. fsetpos sets the file pointer associated with stream to a new position. 
  4. The new position is the value obtained by a previous call to fgetpos on that stream.
  5. Fsetpos also clears the end-of-file indicator on the file *stream and undoes any effects of ungetc on that file.
  6. fgetpos stores the position of the file pointer associated with the given stream in the location *pos. 
  7. The exact value is irrelevant.

Syntax :

int fsetpos(FILE *stream, const fpos_t *pos);


Live Example :


int main ()
{
  FILE * fp;
  fpos_t position;

  fp = fopen ("file1.txt","w");
 
  fgetpos (fp, &position);  // Store New Position
  fputs ("What an Idea",fp);

  fsetpos (fp, &position);  // Set Current Position to New Position
  fputs ("This",fp);

  fclose (fp);
  return 0;
}


Return Value : 


    

  1. On success : Return 0
    2. 

  2. On Error : Returns a non-zero value
    3.