1. Does anyone know what CENTER_PARENT is?

  • Posted by petelomax Apr 26, 2011
  • 1143 views

OK, now I'm really confused. Searches of all iup, OpenEuphoria source, this site, and Google came up blank.

iup/dialog.e contains: public function get_color(integer x = CENTER_PARENT, integer y = CENTER_PARENT, integer r=255, integer g=255, integer b=255)

and it compiles cleanly. So I thought I'll just put ?CENTER_PARENT in there. And for my trouble got cannot resolve reference!

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2. Re: Does anyone know what CENTER_PARENT is?

  • Posted by petelomax Apr 26, 2011
  • 1127 views

It is a bug, in both iup AND OpenEuphoria: 

procedure p(integer i=XXXXX_XXXXXXXX) 
  puts(1,"this is p\n") 
end procedure 
 
p(0)

The above compiles cleanly, until you delete the 0, in which case you get an error on line 5 rather than on line 1...

which also means you have the contextual gotcha:

_inc.e is: 

constant x = "12345" 
global procedure p(integer i=length(x)) 
  printf(1,"the length of %s is %d\n",{x,i}) 
end procedure

_test.exw is: 

include _inc.e 
constant x = "123" 
p()

which prints "the length of 12345 is 3"

If you remove the second x, it gives better results, but then that implies it is successfully referencing the private x of _inc.e out-of-scope (or the private x of _test.exw out-of-scope, whichever way you want to look at it)...

This could explain a few things...

Pete

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