[fpc-pascal] String conversions

[Martok]

> Yes indeed. FPC already has an overwhelming amount of string types. As I said though a SetCapacity option for growing would be nice (for dynamic arrays also) because += is such a common operation. As it stands I often don’t use dynamic arrays (and now ansistring) because of growing limitations, which is a shame really.

Just chiming in: this should be handled by the memory manager.
"A chunk of memory gets grown repeatedly" is actually a fairly common workload,
not just for arrays, but also things like MemoryStreams or List classes.

So, I would expect (and FastMM has codepaths for that), that repeated
reallocations cause some form of "over-allocating" growth and most of the
individual "+1" reallocs will be essentially no-ops.

-- 
Regards,
Martok

Ceterum censeo b32079 esse sanandam.