Add missing iterator header.

hzeller · hzeller · commit d4fee96a0511 · 2022-06-27T11:56:20.000-07:00
Signed-off-by: Henner Zeller &lt;h.zeller@acm.org&gt;
diff --git a/libs/libvtrutil/src/vtr_flat_map.h b/libs/libvtrutil/src/vtr_flat_map.h
@@ -1,6 +1,7 @@
 #ifndef VTR_FLAT_MAP
 #define VTR_FLAT_MAP
 #include <functional>
+#include <iterator>
 #include <vector>
 #include <algorithm>
 #include <stdexcept>
