auto with lambdas can be quite dangerous if you are adding different types inside their bodies. Type promotion rules should be well understood. During code revi

auto with lambdas can be quite dangerous if you are adding different types inside their bodies. Type promotion rules should be well understood. During code reviews we spotted several overflow bugs when using ints because the dev were thinking auto as a sort of very powerful resource. Explicit casting if often required to make sure subtle bugs won't show up in production.