+int get_layout_value(const Layout &layout, const string &name, int def_value)
+{
+ for(vector<Layout::Qualifier>::const_iterator i=layout.qualifiers.begin(); i!=layout.qualifiers.end(); ++i)
+ if(i->name==name)
+ return i->value;
+ return def_value;
+}
+
+void add_to_chain(Assignment::Target &target, Assignment::Target::ChainType type, unsigned index)
+{
+ if(target.chain_len<7)
+ target.chain[target.chain_len] = type | min<unsigned>(index, 0x3F);
+ ++target.chain_len;
+}
+