Pcall

Available since: Gideros 2011.6

Description

Calls function f with the given arguments in protected mode. This means that any error inside f is not propagated; instead, [[[pcall` catches the error and returns a status code. Its first result is the status code (a boolean), which is true if the call succeeds without errors. In such case, `pcall` also returns all results from the call, after this first result. In case of any error, `pcall]]] returns false plus the error message.

(bool), (any) = pcall(f,arg1,arg2,...)

Parameters

f: (function) function to call in protected mode
arg1: (any) argument to pass to the function optional
arg2: (any) argument to pass to the function optional
...: (any) other optional arguments optional

Return values

Returns (bool) false if there was error, true if function call succeeded
Returns (any) all the results that function returns