--- C:/Users/a-bataev/AppData/Local/Temp/standard_callbacks.hpp-rev4119.svn001.tmp.hpp	Ρα τεβ 20 10:57:24 2016
+++ C:/Users/a-bataev/AppData/Local/Temp/standard_callbacks.hpp-rev4120.svn001.tmp.hpp	Χς τεβ 25 16:12:22 2016
@@ -128,7 +128,8 @@ namespace boost { namespace property_tree {
                 stack.pop_back();
                 return new_tree();
             }
-            assert(false);
+			throw std::logic_error("unexpected error");
         }
         string& new_value() {
             if (stack.empty()) return new_tree().data();