[PATCH] PR libstdc++/89446 fix null pointer dereference in char_traits

[Jonathan Wakely]

On 23/02/19 01:02 +0000, Jonathan Wakely wrote:
>+// { dg-options "-std=gnu++17 -fexceptions -fnon-call-exceptions -O1" }
>+// { dg-do run { target { powerpc*-*-linux* i?86-*-linux* x86_64-*-linux* } } }

I forgot to say that this is a conservative list of targets where
-fnon-call-exceptions is supported. Maybe it could run on other
targets, but this should be enough to ensure we don't get a regression
for this bug.