...about a ~ b ~ c and avoiding unnecessary allocations.

Expression templates are concerned with problems like...

...use it (at least not for stack allocations).

TLDR: Seems like initializing (all non-default...

...up to a lot of allocations, with most of the allocations as temporaries.

What about...

...in mind is that all new'd allocations are padded to a multiple of 16...

...for AliasDecl *only*), minus the problem of allocations blocks, so maybe more 10% to 20...

...dmd while compiling. (It's number of allocations i.e. calls to new, not size...

...with -profile=gc -lowmem, no avail. Individual allocations of class objects are not present in...

...at least some) memory mapped to make allocations more efficient.

I would think collect + minimize...

...possibilities to go wrong (deadlocks, threading, memory allocations...) and that differs from project to project...

...if it can be avoided, because the allocations for save (or the copy constructor if...