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| `endpoint` can be filled in order to use a specific source endpoint. | ||
| Especially useful when you have multiple Internet connections and want to force a specific one. | ||
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| Returns an [`std::pair`](https://en.cppreference.com/w/cpp/utility/pair) containing the result code and a socket handle (also called "file descriptor"). |
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This seems odd. We are writing C++ and thus errors should be communicated by means of exceptions and not via result codes.
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Honestly, I've ever only used exceptions when strictly required, either by the standard library or an external one.
The "modern" way would be to use std::expected, as it's officially introduced in C++23.
A potential alternative is Boost.Outcome.
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Exceptions are still the best way of error handling, imo as they can't be ignored. They have to be handled or else the program terminates. It is unfortunate that C++ compilers don't warn you about potentially unhandled exceptions, though 🤷
Using monads is not necessarily the "modern" way of doing things. It's just another way.
However, since we don't have monads yet anyway, I would argue that exceptions are the best thing we got for the moment (certainly much better than error codes)
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I would argue it also depends on the way they're presented, in this library the behavior is very consistent.
On the other hand, unhandled exceptions generally trigger an automatic backtrace, which may be desiderable.
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Even if the error codes are very consistently returned, it is just so easy to forget to check them. I've seen and also experienced this so many times and the result of that is a program that doesn't do error checking, which more often than not will lead to the program crashing somewhere down the line and then it will be much more difficult to figure out where the error came from. With exceptions, you get a crash right when and where the error appears (if you don't handle it).
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For clarity, as without the prefix another value could be expected instead. For example, the amount of bytes added in the case of Crypt::padding(). Co-authored-by: Robert Adam <[email protected]>
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