[patch] libstdc++/66327 don't pass null pointers to memcmp

[Jonathan Wakely]

On 30/05/15 09:36 +0000, Jörg Richter wrote:
>> >How about comparing only the length against 0?
>> >The pointers must be != 0 if length > 0.
>>
>> Like so? Yes, that's probably an improvement, because we need that
>> length anyway.
>
>Yes, that is what I had in mind.
>I think the second case can be handled equally by
>precomputing std::min(__len1, __len2).

Yep, that's better too, I've tested and committed this patch. Thanks
for the suggestions.


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