On Friday, 15 November 2013 at 14:01:36 UTC, Chris Cain wrote:
By default (using the default GC and everything), D does not
reallocate a dynamic array every time you change the length
(even increasing it), so this will still be okay with
allocations.
Not exactly so. If you decrease the length, the capacity is set
to 0. If you then try to increase it, you must use
assumeSafeAppend on the array, or it will be reallocated.
Alternatively, you may choose to allocate a large enough array
once and then create a wrapper struct to store the currently used
length.
See the explanation of how array slices work in D:
http://dlang.org/d-array-article.html
Or a thread I started when learning to use D arrays as stacks and
queues without wrappers:
http://forum.dlang.org/thread/yrxspdrpusrrijmfy...@forum.dlang.org?page=1
Ivan Kazmenko.
