funcprot — switch scilab functions protection mode
prot=funcprot() funcprot(prot)
Scilab functions are variable, funcprot allows the user to specify what scilab do when such variables are redefined.
If prot==0 nothing special is done
If prot==1 scilab issues a warning message when a function is redefined (default mode)
If prot==2 scilab issues an error when a function is redefined