Adriaan van Os wrote:

Jay Michael wrote:

...

gpc version 20070904, based on gcc-3.4.5 (mingw special)        Given            type INT16  = INTEGER  attribute( size=16 ) ;            type WORD16 = Cardinal attribute( size=16 ) ;            var i16 : INT16 ;            var w16 : WORD16 ; why does            WORD16(I16) := W16 ; produce "error: invalid lvalue in assignment"?

A bug in the compiler. GPC is too picky when it comes to typecasts.

Do you have any idea why this case is rejected?

The compiler accepted

type winbool = boolean attribute( size = 32 ) ;           var i : integer ;           var wb : winbool ;

integer(wb) := 1024 ;           integer(wb) := -1 ;           integer(wb) := i ;

I thought BOOLEAN was an enumeration type.  I thought an enumeration type was a second cousin to an unsigned integer.  So I thought the only real difference in my case was that I was using 16-bit integers.

I was prepared for the compiler to accept the code and insist on generating range checks that I don't want.  I'm just puzzled that it wouldn't even accept what looks to me to be just like examples I see posted of "variable type cast".