You can just test it.
Setup a program that expects 2 parameters, the frist a string, the second the length of the first parameter.
If the second parameter <> legnt of first parameter then set ExitCode to 1
Now write a program that executes the other program with consecutive larger first parameters (and correct second parameter of course).
(Use StringOfChar to make a string of arbitrary length).
If the other program exits with exitcode 1, then you hit the barrier.
Alternatively just see if you can google the results for Windows, Linus, OSX etc.
Bart