Because no one used it. Sounds like I may need to un-deprecate it for 2.060. 

On Apr 13, 2012, at 4:07 AM, Timon Gehr <timon.g...@gmx.ch> wrote:

> On 04/13/2012 12:47 PM, Manu wrote:
>> No comment...
>> 
>> I'm also finding that I really need an assert hook. The default assert
>> implementation is not useful to me, and just crashes my programs
>> (exceptions when interacting with C is problematic).
>> I'd like to route runtime asserts through my own system. A simple
>> backend hook would sort me out here too..
>> 
>> Does anyone know any existing way to do the stuff I'm talking about here?
>> If not, what do people think about the possibility of putting hook
>> register functions into druntime?
>> 
>> On 9 April 2012 03:59, Manu <turkey...@gmail.com
>> <mailto:turkey...@gmail.com>> wrote:
>> 
>>    So one thing that almost every major middleware provides, is an
>>    interface to hook your own allocation and filesystem callbacks under
>>    the hood, to allow integration with your potentially complex technology.
>> 
>>    In my industry, memory and filesystem hooks are non-negotiable. We
>>    can't use any middleware that does not provide them.
>>    Traditionally, we have a problem with the C library, and many core C
>>    libs which depend heavily on the CRT. Almost all games engines have
>>    to wastefully rewrite large portions of the CRT, just to implement
>>    the appropriate memory and filesystem interface, and some super
>>    handy common libs are lost to us due to lack of this foresight.
>> 
>>    So this in mind, many of the goodies in phobos are currently
>>    unusable to us (although fortunately source is available).
>>    Has it ever been considered to allow hooks into the backends of
>>    those systems which could be registered at runtime?
>>    It would be simple to provide an API where you could register the
>>    filesystem primitives, which all standard libraries would then
>>    magically route through (huzzah!).
>>    A primitive malloc/free hook would be nice to have too, that way we
>>    can direct memory to the appropriate locations, and keep mem stats
>>    along with the the rest of the system.
>>    It's not uncommon to malloc the entire heap on boot, and implement
>>    our own heap management through our own API's. Obviously system
>>    functions would fail to allocate memory in this environment...
>> 
>>    Having these hooks in phobos would also lift this burden off of
>>    library developers (usually only added on request with a few months
>>    turn around time, which is no good for project scheduling), and it
>>    would never prevent us access to those libraries where the
>>    developers never considered our use case.
>> 
>> 
> 
> http://dlang.org/phobos/core_exception.html
> deprecated void setAssertHandler(errorHandlerType h);
> 
> Why is it deprecated?
> 
> 
> 
> 

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