5 replies to this topic

[Boss Nomad]

I have just made OS for my use only. It has "Run program" feature.

Problem:

When i run program that has error with this feature, it will crash OS. Is there way to run startup always when program closes?

I will not give code, because i have meant it only for my use. If you dont know how to solve this without the code then you cant help me.

[grabie2]

Look at that: http://www.lua.org/m....html#pdf-pcall

[ChunLing]

You can always pcall a loadstring.

[Boss Nomad]

There wasnt alot info about it, can someone explain me more about pcall?

[ChunLing]

Not really feeling like it. But the link grabie2 provided explains pretty much all there is to explain.

[grabie2]

pcall is pretty simple: instead of calling function like that:

os.loadAPI("awesomeAPI")

you call it like that:

local ok, p1, p2, p3 = pcall(os.loadAPI, "awesomeAPI")
if not ok then
  errorMessage = p1
else
  --everything went OK
end

simple, huh?