When making my hobby projects I've typically used a system where certain functions return true or false values to indicate if an error occurred.
For Example: main calls class A, class A has a function called bool setup(). Class A has a member class C, which also needs to setup some stuff and has a bool load() function.
now with the given structure, I have to have an if/then statement when using C::load() inside the setup(). Main calls setup() so I have to use an if/then statement to evaluate it ad decide whether to go on or not.
What I'm asking is this cascading bool checking a waste of time or do exceptions correct that problem.
I've found that with exceptions a similar problem can occur where main has to try and catch exceptions thrown from setup(), which in turn has to try and catch exceptions thrown from load(). It's a similar process but with try/catch statements instead of if statements.
What is the "proper" method of error handling in the case of multiple programs or functions cascading errors down to base calling functions.