Re: Componentizing D's garbage collector

[Ola Fosheim Grøstad]

On Monday, 13 January 2014 at 17:45:26 UTC, Dmitry Olshansky 
wrote:
How would it be expensive? I don't see a need to do anything to 
"pin" a memory block, at the time of scanning there will be a 
potential pointer to it (in the stack space of C function or 
registers).

How do you know that it is a pointer?