diff -r c1d43ade656e -r 62cfb7b97fc0 sources/mystring.cpp
--- a/sources/mystring.cpp	Fri May 15 22:46:53 2015 +0300
+++ b/sources/mystring.cpp	Sun May 17 17:22:20 2015 +0300
@@ -303,7 +303,7 @@
 
 // -------------------------------------------------------------------------------------------------
 //
-bool String::starts_with (const String& other)
+bool String::starts_with (const String& other) const
 {
 	if (length() < other.length())
 		return false;