Is it possible that we override global variables?
- by Ram Moj
I have this function:
function example(y)
global TICTOC;
tic
TICTOC=5;
toc
end
and I expect TICTOC=5 change the result of toc, since TICTOC is a global variable in tic and toc functions; but this is not the case; Does anyone know the reason?
I like to know the answer, because I 'm worried to declare a global variable, which it's name has been declared global in some other functions, I'm not aware of.
I saw this function in matlab 2008b help
function tic
% TIC Start a stopwatch timer.
% TIC; any stuff; TOC
% prints the time required.
% See also: TOC, CLOCK.
global TICTOC
TICTOC = clock;
function t = toc
% TOC Read the stopwatch timer.
% TOC prints the elapsed time since TIC was used.
% t = TOC; saves elapsed time in t, does not print.
% See also: TIC, ETIME.
global TICTOC
if nargout < 1
elapsed_time = etime(clock, TICTOC)
else
t = etime(clock, TICTOC);
end
thanks.
