OpenEuphoria

Re: mixedlib.e: nested structs=?windows-1251?Q?=3f?=

• Posted by Bernie Ryan <xotron at BUFFNET.NET> May 27, 2000
• 449 views

On Sat, 27 May 2000 23:59:15 +0400, CenSe <cense at MAIL.RU> wrote:
>  Is it possible to nest a struct created by mixedlib.e inside another
struct
>* TEST PSEUDO CODE *
>
>atom nested, ptr
>nested = struc( "foo : byte : 1", HIGH )
>pt = struc( "bar : struct : length( nested ) ", HIGH )
>
>Set( ptr, "bar", nested )

  CenSe:

-- you can define a structure that can contains other structures like this
-- use the same techniques as the last post.

pointer nested, ptr

-- what you want to nest
nested = struc( "foo : byte : 1 ", HIGH )

-- allocate the place where you are going to nest
ptr = struc( "bar : byte : sizeof( nested ) ", HIGH )

-- Now you can set values in nested with Sets() function
-- then copy the structure in to the ptr structure like this
-- loc() function returns the offset of structure

mem_copy( loc(ptr,"bar"), nested, sizeof(nested) )

-- To get data out of the structure copy the structure out to nested
--
mem_copy( nested, loc(ptr,"bar"),  sizeof(nested) )
--
-- then use the Gets() function to access the data from the nested
structure.

 I hope that helps

Bernie