On Thu, Nov 15, 2012 at 05:20:48PM +0100, Uros Bizjak wrote:
> This revision auto-detect support for Q and W suffixes.
>
> 2012-11-15 Uros Bizjak <ubiz...@gmail.com>
>
> * lib/target_suports.exp
> (check_effective_target_has_w_floating_suffix): New procedure.
> (check_effective_target_has_q_floating_suffix): Ditto.
> * g++.dg/cpp0x/gnu_fext-numeric-literals.C: Add dg-error directive
> for unsupported non-standard suffix on floating constant.
> * g++.dg/cpp0x/std_fext-numeric-literals.C: Ditto.
>
> Tested on alphaev68-pc-linux-gnu and x86_64-pc-linux-gnu.
>
> OK for mainline?
> Index: lib/target-supports.exp
> ===================================================================
> --- lib/target-supports.exp (revision 193533)
> +++ lib/target-supports.exp (working copy)
> @@ -1742,6 +1742,23 @@
> }]
> }
>
> +# Return 1 if the target supports 'w' suffix on floating constant
> +# 0 otherwise.
> +
> +proc check_effective_target_has_w_floating_suffix { } {
> + return [check_no_compiler_messages w_fp_suffix object {
> + float dummy = 1.0w;
> + }]
> +}
> +
> +# Return 1 if the target supports 'q' suffix on floating constant
> +# 0 otherwise.
> +
> +proc check_effective_target_has_q_floating_suffix { } {
> + return [check_no_compiler_messages q_fp_suffix object {
> + float dummy = 1.0q;
> + }]
Don't you need to make sure you are compiling this either with C, or C++
with -std=gnu++03/11 or whatever other option is needed to enable those?
With -std=c++11 without other options I believe this is now rejected,
even when the target supports it.
Jakub
