--- a/src/string.cpp Tue May 21 17:39:27 2013 +0300 +++ b/src/string.cpp Tue May 21 18:38:06 2013 +0300 @@ -177,7 +177,7 @@ int String::first (const char* c, int a) const { unsigned int r = 0; unsigned int index = 0; - for (; a < len (); a++) { + for (; a < (int) len (); a++) { if (m_string[a] == c[r]) { if (r == 0) index = a;