Decompressing bzip2

[Mike Parker via Digitalmars-d-learn]

On Monday, 4 April 2016 at 21:32:10 UTC, stunaep wrote:

> Can you please explain what the scope keyword does and if there

scope was originally intended to be used primarily with classes 
in order to get deterministic destruction. It ensures the 
destructor of a class is called when the scope exits, just as 
with a struct. It's not needed here and shouldn't really be used 
at all anymore. It has been superseded by std.typecons.scoped 
[1]. It's not needed here at all, though. bz_stream is a struct, 
so there's no need to allocate an instance of it:

bz_stream stream;

Then you can just take its address when passing it to functions:

int init_error = BZ2_bzDecompressInit(&stream, 0, 0);

> is any benefit to using
> "new byte[](size)" over "new byte[size]" with a 1D array?

This is the newer and recommended syntax for allocating arrays. 
The idea is that it helps improve readability because the old 
syntax, "new byte[size]", brings to mind static array 
declarations, and that it's consistent with the syntax for 
allocating other types:

new T(arg);

[1] https://dlang.org/phobos/std_typecons.html#.scoped