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

[Jonathan Wakely]

On 23/02/19 10:55 +0100, Eric Botcazou wrote:
>> 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.
>
>What do you mean by supported exactly?

The manual for -fnon-call-exceptions says:

"Note that this requires platform-specific runtime support that does not exist everywhere."

I don't know exactly what that means, so the test only runs on targets
where I know it works.

>Ada and Go set it by default and they
>are supported on a bunch of other targets...

It's not supposed to be an exhaustive list of targets where it's
supported. As I said, it's a conservative list.

It could run on more targets, but there might not be much benefit as
long as the test runs on some targets that get tested often.