On Sunday, 10 July 2016 at 03:02:31 UTC, Superstar64 wrote:
In terms of performance and code generation exceptions are
faster in the regular path while error codes are faster in the
error path.
Would it be possible and a good idea to have a language feature
that allows some exceptions to use error code code generation.
Personally, I don't understand the need for exceptions at all.
Usually, only a calling context can fix the error and continue
execution of the program. If exception caught by a top level
handler, all it can do is just a crash. Moreover, with
exceptions, you need to wrap every piece of code with ugly
"try/catch". A plain check of the return code is much better.
Sometimes you can't return something adequate (when an index is
out of range or container is empty). These cases are programmer's
errors and assert is more than enough.
