rewind and fseek don't work - C

Question

int main()
{
  FILE *file1, *file2;
  char filename[] = "test.xml";
  char c;
  int line = 1;

  //open file in read mode
  file1 = fopen(filename, "r");
  c = getc(file1);
  while (c != EOF){
      printf("%c", c);
      c = getc(file1);
  }

  //rewind
  rewind(file1);
  //fseek(file1, 0, SEEK_SET);

  //open new file in write mode
  file2 = fopen("replica.c", "w");

  c = getc(file1);
  if(c == EOF) printf("toto");
}

The rewind() and fseek() functions don't work, my program display "toto", so file1 is still positioned on EOF.

Do you have an idea to solve this probleme please?

What does the `printf("%c", c);` print? If all your program prints is `toto`, then this can be explained by the file `test.xml` being empty. — pts, Aug 14 '14 at 22:25
You should declare `c` as an `int` type, not `char`. The `getc()` function returns an `int` so that a byte value of 255 = 0xFF can be distinguished from EOF = -1. — Colin D Bennett, Aug 14 '14 at 22:28

score 2 · Accepted Answer · answered Aug 14 '14 at 22:53

2

If all your program prints is toto, then this can be explained by the file test.xml being empty.

answered Aug 14 '14 at 22:53

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rewind and fseek don't work - C

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