@@ -27,7 +27,7 @@ DiscreteIndex::DiscreteIndex(pugi::xml_node node)
   auto params = get_node_array<double>(node, "parameters");
   std::size_t n = params.size() / 2;
 
-  assign(&(*params.begin()) + n, n);
+  assign(params.data() + n, n);
 }
 
 DiscreteIndex::DiscreteIndex(const double* p, int n)
Original file line number	Diff line number	Diff line change
`@@ -27,7 +27,7 @@ DiscreteIndex::DiscreteIndex(pugi::xml_node node)`
`27`	`27`	`auto params = get_node_array<double>(node, "parameters");`
`28`	`28`	`std::size_t n = params.size() / 2;`
`29`	`29`
`30`		`- assign(&(*params.begin()) + n, n);`
	`30`	`+ assign(params.data() + n, n);`
`31`	`31`	`}`
`32`	`32`
`33`	`33`	`DiscreteIndex::DiscreteIndex(const double* p, int n)`