On Sat, Apr 26, 2014 at 2:57 PM, Sam Ravnborg <sam@xxxxxxxxxxxx> wrote:
>
> Following code snippet generate these warnings:
> t.c:9:9: warning: asm output is not an lvalue
Yeah. That code snippet is pure and utter garbage.
Gcc has this totally insane extension that makes casts be lvalues.
It's stupid and horrid, and pointless to boot. So apparently gcc
accepts that crap.
But it is very much total crap.
Those casts to (USItype) are all pointless to begin with (since the
values are of that type already!) and they mean that the expression
isn't something you can assign to (lvalue). The fact that gcc accepts
code like that is an embarrassment.
Linus
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