Implement error handling macros

[spbnick]

Throughout the code several error-handling patterns are repeated many times. Implement macros to handle the most typical cases and save on line count.

[danghai]

Hi Nick, could you write some example about error-handling patterns are repeated in code?

[spbnick]

Hi Hai, Here is one which is repeated often: https://github.com/Scribery/tlog/blob/master/src/tlog-rec.c#L67-L69 Here is another which can be implemented as the previous one: https://github.com/Scribery/tlog/blob/master/src/tlog-rec.c#L85-L87 And another: https://github.com/Scribery/tlog/blob/master/src/tlog-play.c#L130-L132

Look around and you'll find some that are repeating.

[danghai]

Hi Nick, before doing that, do you want to add line, function, file ( the same debug output) into stack err? It is convenient because when you have many error in stack, it will report information about them for you.

[spbnick]

We can do that later. I'd rather not add that yet, as there wasn't much need for it so far, and it would increase the code size.

[danghai]

Hi Nick, I see there are 4 different types repeated. Should I write 4 function in Header to handle them? 1. pushf 2. pushs 3. pushc, then pushf 4. pushc, then pushs What do you think?

[spbnick]

I think I'll be able to understand you better, if I just saw the code you want to write :) Just make a PR with the macros you want to add and then let's discuss it.

[danghai]

Hi Nick, I should write more specific about the code :). I send the first draft to new pull request for this issue.