Pascal has ref-counted strings. If the user modifies such a string, then
a new copy will be made unless the ref-count was equal to 1.
Would it be reasonable to request a flag to indicate data types with
such behaviour?
(Such a flag might only be present on types that have the newly
requested DW_AT_ref_count)
Also, does anyone know similar behaviour in other language?
I wonder if "flag" is the appropriate form.
For Pascal it would currently be enough. Since it only applies to
strings, and strings can not be nested.
If a language had a refcounted array or structure type, then such a type
could contain other (nested) ref-counted types (e.g. via
pointer/reference).
There could then be a case where modifying a nested ref-counted array,
triggers copy on write for the outer array too?
In that case a flag may not be able to express that.
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