25 Sep
2004
25 Sep
'04
9:48 p.m.
Peter Simons wrote:
When I create a CString with Foreign.C.String.newCString, do I have to 'free' it after I don't need it anymore? Or is there some RTS magic taking place?
How about Foreign.Marshal.Utils.new and all those other newXYZ functions?
Yes. The new* functions allocate the memory with malloc, and you have
to free it yourself. OTOH, the with* functions allocate the memory
with alloca, and it is freed automatically.
Also, a ForeignPtr includes a finaliser which will free the data
automatically when it is no longer referenced.
--
Glynn Clements