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From: Bonita Montero <Bonita.Montero@gmail.com>
Newsgroups: comp.lang.c++
Subject: Re: "C++20 Coroutines" by Martin Bond
Date: Sat, 25 Sep 2021 12:18:09 +0200
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Xref: csiph.com comp.lang.c++:81542

Am 25.09.2021 um 12:09 schrieb HorseyWorsey@the_stables.com:

>> Am 25.09.2021 um 11:19 schrieb HorseyWorsey@the_stables.com:
>>> No sane person would use coroutines instead of a nice clear state machine.
>>
>> State-machines are never clear ! You've to write a
>> 	while( state != END )
>> 		switch( state )
>> 		{
>> 		case STATE_A:
>> 			...
>> 			break;
>> 		case STATE_B:
>> 			...
>> 			break;
>> 		case STATE_C:
>> 			...
>> 			break;
>> 		}
>> -loop and that's _much_ less readable.

With C++-coroutines you have the control-flow of a normal func-
tion between the states. That's much more readable than the above
spaghetti-code. That's while fibers have been invented, but their
overhead is much larger and they're not integrated in the langauage
and thereby not so convenient.