return c, nil
	}
	return -1, io.EOF
}

// Test that the scanner doesn't panic and returns ErrBadReadCount
// on a reader that returns a negative count of bytes read (issue 38053).
func TestNegativeEOFReader(t *testing.T) {
	r := negativeEOFReader(10)
	scanner := NewScanner(&r)
	c := 0
	for scanner.Scan() {
		c++
		if c > 1 {
			t.Error("read too many lines")
			break
		}
	}