Force type-casting for member variables. For some member that need a casting for the type is that what we want. For example, casting a void * type to a struct pointer type. This force will skip type checking, but it works for the variables with a generic type and we want to specialize its type.

divert([-1])

define([_arg1], [$1])

define([_foreach], [ifelse([$2], [()], [],
[define([$1], _arg1$2)$3[]_foreach([$1], (shift$2), [$3])])])

define([foreach], [pushdef([$1])_foreach($@)popdef([$1])])

divert[]dnl