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Unpacking binary data in Python:
import struct
bytesarray = "01234567".encode('utf-8')
# Return a new Struct object which writes and reads binary data according to the format string.
s = struct.Struct('=BI3s')
s = s.unpack(bytesarray) # Output: (48, 875770417, b'567')
Does Raku have a similar function to Python's Struct? How can I unpack binary data according to a format string in Raku?
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Destructuring can be used to untangle multiple return values. Raku has many ways to specify a function's return type: Attempting to return values of another type will cause a compilation error. returns and of are equivalent, and both take only a Type since they are declaring a trait of the Callable.
See PEP 557. Backported to Python 3.6 using the dataclasses package. Show activity on this post. Please realise that in C++, the only difference between a class and a struct is that the elements of a class are by default private, as is the inheritance. The following are equivalent: class D : public B { public: ... }; struct D { ... };
We all know about the structures used in C and C++. The one that allows to bundle multiple primitive data types into user defined data type. In python, can define a structure using a class, where the user does not define any functions in the class. Ok, I know that even though C doesn’t, C++ allows function definitions in structure.
Python struct module is capable of performing the conversions between the Python values and C structs, which are represented as Python Strings. Python struct module can be used in handling binary data stored in files, database or from network connections etc.
There's the experimental unpack
use experimental :pack;
my $bytearray = "01234567".encode('utf-8');
say $bytearray.unpack("A1 L H");
It's not exactly the same, though; this outputs "(0 875770417 35)". You can tweak your way through it a bit, maybe.
There's also an implementation of Perl's pack / unpack in P5pack
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