Re: C++ extension and garbage collection

[Matthew Flatt <mflatt@cs.utah.edu>]

At Tue, 26 Mar 2002 11:31:26 -0800 (PST), Ron Stanonik wrote:
> I asked that question because mzscheme/gc/gcc_support.c defined __builtin_new
> to call GC_malloc_uncollectable.

MrEd doesn't use that. It uses plt/src/wxcommon/wxGC.cxx, instead.

> "void *operator new" is getting called and not protecting C++ objects
> from the garbage collector. 

The implementation of MrEd doesn't want C++ to be "protected" from the
garbage collector; for a variety of reasons (not performance :), MrEd's
C++ objects are meant to be GCed.

Of course, this causes problems for C++ objects that aren't meant to be
GCed. One solution is to change MrEd to explicitly call GC_malloc
instead of redirecting `new'. That's probably the right one, but it
will take some time.

Matthew