[gambit-list] use of cast expressions as lvalues
feeley at iro.umontreal.ca
Sun Jan 29 15:00:29 EST 2006
On 29-Jan-06, at 9:56 AM, Christian wrote:
> Speaking of compiler warnings: I'm sometimes getting:
> foo.c:7033: Warnung: use of cast expressions as lvalues is deprecated
> in cases like:
> (c-declare ".......
> struct sigqueue * global_queue;")
> (define global-queue (c-lambda () sigqueue "___result=
> Is there a more correct way to assign something to the result?
Yes. Whenever you are returning a pointer, you have to assign it to
___result_voidstar (which is a variable of type void*). So your code
(define global-queue (c-lambda () sigqueue "___result_voidstar =
Gambit uses this approach to avoid some problems with C++ handling of
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