OpenEuphoria

Variable Scope

• Posted by Rich Klender <rklender at excite.com> Feb 02, 2007
• 609 views

Hey everybody, surprise!!!  Another question!!

I read over the part of the manual about variable scope and just want to
bounce this off everybody to make sure I'm comprehending it correctly.

Let's say I have the following:

function somefunc(integer C)
  integer a,b,c

  a=1
  b=2
  c=3
return c
end function

Ok, now in my main program, because c was returned, I'll be able to "see" that
c=3.  However, because a and b are "local" to the function, I cannot, for
instance, in my main program do:

a=a+1

and expect to get a=2 as a result.  I think I already know this cause Euphoria
already told me that a is not defined.

However, if I do this:

function somefunc(integer C)
  global integer a,b,c

  a=1
  b=2
  c=3
return c
end function

When I return from to my main program, I should be able to "see" that
a=1, b=2, etc. even though those variables weren't returned?

Thanks for the patience!!
Rich