for (size_t i = 0; i < tf.GetLineCount(); i++)
{
- if (tf[i].IsEmpty() || tf[i][0] == _T('#')) continue;
+ if (tf[i].IsEmpty() || tf[i][0u] == _T('#')) continue;
wxStringTokenizer tkn(tf[i], _T(' '));
wxString s = tkn.GetNextToken();
if (s == _T("node"))