dynamic array capacity

[spir]

Hello,

Is there a common idiom to pre-allocate a dynamic array. I mean allocating to avoid numerous re-allocations in loop, not setting length & filling content.
The differences are:
(0) no content --> no init
(1) one can simply append, instead of setting elements at defined indices
(2) one can append sub-sequences
(3) when the initially requested capacity is full, the array automagically resizes as needed (usng D's builtin dynarray realloc scheme).

Denis
-- -- -- -- -- -- --
vit esse estrany ☣

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