How to parse string into byte[]?

Question

C++ / C#

There is a LINE which contains an ARRAY of BYTES (byte[]). It is necessary to parse (not convert) this string into byte[]

Answer 1

https://streletzcoder.ru/preobrazovanie-stroki-vm...
If I understood correctly, then you were looking for an analogue of java String.getBytes
or is it yours to convert?
But are you sure that exactly those bytes that came from outside are in the line?
in almost all languages/platforms.
When data is read from the stream, it is converted to the internal encoding.
Those. starting to read the binaries, you need to say in what encoding the data is expected.
Where and how did the bytes get into the string?