On Thursday, 17 April 2014 at 17:50:30 UTC, Dicebot wrote:
On Thursday, 17 April 2014 at 17:45:22 UTC, Kagamin wrote:
On Thursday, 17 April 2014 at 17:35:17 UTC, bearophile wrote:
Kagamin:
Bound checked version of variable size struct:
http://dpaste.dzfl.pl/fcd91d6912d3
I think you are missing one of the main points of a variable
sized struct, that is to reduce by 1 the number of
indirection levels.
Bye,
bearophile
As far as I can see, my implementation has only 1 indirection
level.
And C-like dynamic structs have 0 indirection.
Well, technically everything on the stack is accessed through an
indirection (RBP + offset), but there are more optimisation
opportunities if the base and/or offset is known statically.
Performance-wise you're gaining nothing over a static array (or
any alloca buffer) and potentially losing something compared to
normal stack variables / struct members.
