[Issue 12387] Mark stdlib malloc and friends as weekly pure

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=12387


yebblies <yebblies at gmail.com> changed:

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--- Comment #3 from yebblies <yebblies at gmail.com> 2014-03-21 00:42:37 EST ---
> Or please try to explain why "malloc" isn't special. It will help me
> understand, and stop me from pressing on the issue.

I guess you could consider a malloc leak as an observable side effect... eg
duplicate calls to a pure function that calls malloc can't be removed even if
they return an immutable pointer.

> malloc and friends affect global state and therefore are not pure.
> 
> The gc is special in that it is allowed to modify global state and yet remain
> pure. malloc is not special.

This is a convoluted way to say 'no' without giving any reasons...

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