On Thu, Dec 31, 2015 at 12:45:06PM +0100, Marc Glisse wrote:
> On Thu, 31 Dec 2015, Dominik Vogt wrote:
>
> >The minimal failing program is
> >
> >-- abs.C --
> >#include <stdlib.h>
> >static float (*p1_)(float) = abs;
> >-- abs.C --
>
> This is allowed to fail. If you include math.h (in addition or
> instead of stdlib.h), it has to work (gcc bug if it doesn't).
>
> See also
> http://www.open-std.org/jtc1/sc22/wg21/docs/lwg-active.html#2294
Understood. So, this should work in any case but doesn't
-- abs.C --
#include <stdlib.h>
#include <math.h>
static float (*p1_)(float) = abs;
-- abs.C --
$ g++ -std=c++11 abs.C -Wsystem-headers
abs.C:3:30: error: invalid conversion from ‘int (*)(int) throw ()’ to ‘float
(*)(float)’ [-fpermissive]
static float (*p1_)(float) = abs;
^~~
Is there a requirement for a certain minimum Glibc version for
this to work?
Ciao
Dominik ^_^ ^_^
--
Dominik Vogt
IBM Germany
