PackedArray | Random access array of tightly packed unsigned integers
kandi X-RAY | PackedArray Summary
kandi X-RAY | PackedArray Summary
Random access array of tightly packed unsigned integers
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QUESTION
Can I somehow compress with Delphi using ZLIB (Deflate with ZLIB headers) and get an array of Bytes?
Right now I am copying from TMemoryStream but it would be nice to not copy back to array (so it's faster overall)
...ANSWER
Answered 2020-Jun-17 at 21:38Simply use TMemoryStream.Memory
as the byte array, just don't free the stream until you are done using the bytes:
QUESTION
I have a header and data which I need to represent in one Byte Array
. And I have a particular format for packing the header in a Byte Array
and also a different format to pack the data in a Byte Array
. After I have these two, I need to make one final Byte Array
out of it.
Below is the layout which is how defined in C++
and accordingly I have to do in Java
.
ANSWER
Answered 2017-Jan-20 at 00:45Another way of doing it would be via a DataOutputStream
around a ByteArrayOutputStream
, but you should concentrate your performance tuning around the places it's needed, and this isn't one of them. Efficiency isn't any kind of an issue here. The network I/O will dominate by orders of magnitude.
Another reason to use a ByteArrayOutputStream
is that you don't have to guess the buffer size in advance: it will grow as necessary.
To keep it thread-safe, use only local variables.
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