[PATCH] assert: Support types without operator== (int) [BZ #21972]

[Florian Weimer]

On 08/18/2017 07:30 PM, Paul Eggert wrote:
> Florian Weimer wrote:
>>> Florian Weimer wrote:
>>>> + ((void) sizeof (static_cast<bool> (expr)), __extension__ ({ \
>>> Can we instead replace 'sizeof ((expr) == 0)' with 'sizeof !(expr)'?
>>> That works in C, and if it also works in C++ it would avoid the need
>>> for the #ifdef __cplusplus.
>> It does not work in C++ because operator! could have been overloaded
>> or deleted.
> 
> OK, then how about 'sizeof ((expr) ? 1 : 0)'? This should work because
> ?: cannot be overloaded.

Oh, this works.  Updated patch attached.

Thanks,
Florian
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