Answers for "copy struct to buffer"

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copy struct to buffer

int fillDataBuffer(struct data d, char *buffer, int len) 
{
  int i, j = 0;

  for (i = sizeof(d.num1) - 1; i >= 0 && j < len; i--, j++) {
    buffer[j] = (char) (d.num1 >> i); 
  }
  for (i = sizeof(d.num2) - 1; i >= 0 && j < len; i--, j++) {
    buffer[j] = (char) (d.num2 >> i); 
  }
  for (i = sizeof(d.num3) - 1; i >= 0 && j < len; i--, j++) {
    buffer[j] = (char) (d.num3 >> i); 
  }
  for (i = sizeof(d.num4) - 1; i >= 0 && j < len; i--, j++) {
    buffer[j] = (char) (d.num4 >> i); 
  }

  if (j >= len) {
    /* Error!  The buffer wasn't big enough. */
    return 0;
  } else {
    return 1;
  }
}
Posted by: Guest on October-06-2020

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