Unused memory filling

[Vladimir Panteleev]

On Mon, 13 Dec 2010 14:27:02 +0200, bearophile <bearophileHUGS at lycos.com>  
wrote:

> In two places I have read about 'shredding your trash', that is filling  
> the memory that's supposed to be free and not used any more with a  
> constant known value different from zero, to allow bugs in pointer usage  
> to surface faster. So is it a good idea for the D GC to perform such  
> overwriting of the memory it frees, when the program is compiled in  
> debug mode?
>
> Bye,
> bearophile

See the MEMSTOMP debug option in the current GC implementation.

There are also a few other useful options, such as SENTINEL.

Shameless plug: Diamond ( https://github.com/CyberShadow/Diamond ) also  
has a MEMSTOMP option, which can be useful if you have a single-threaded  
D1 program and don't want to rebuild Phobos.

-- 
Best regards,
  Vladimir                            mailto:vladimir at thecybershadow.net