Method apply_predicate_number_const

lib/pugixml/src/pugixml.cpp:9770–9796

		}

		static void apply_predicate_number_const(xpath_node_set_raw& ns, size_t first, xpath_ast_node* expr, const xpath_stack& stack)
		{
			assert(ns.size() >= first);
			assert(expr->rettype() == xpath_type_number);

			size_t size = ns.size() - first;

			xpath_node* last = ns.begin() + first;

			xpath_context c(xpath_node(), 1, size);

			double er = expr->eval_number(c, stack);

			if (er >= 1.0 && er <= static_cast<double>(size))
			{
				size_t eri = static_cast<size_t>(er);

				if (er == static_cast<double>(eri))
				{
					xpath_node r = last[eri - 1];

					*last++ = r;
				}
			}

			ns.truncate(last);
		}

		void apply_predicate(xpath_node_set_raw& ns, size_t first, const xpath_stack& stack, bool once)
		{