Make string_view operations involving CharT* *not* noexcept and consistent beween string_view and string_view.tcc.

[Ed Smith-Rowland]

On 04/15/2014 03:06 PM, Jonathan Wakely wrote:
> On 29/03/14 14:54 -0400, Ed Smith-Rowland wrote:
>> All,
>>
>> In string_view I botched the noexcept specification of operations 
>> like find and friends with CharT* arguments.
>>
>> I'm a little surprised the inconsistency between string_view and 
>> string_view.tcc didn't error.  In fact, in one repo thats a little 
>> behind trunk it does.  I'll continue to look after that issue 
>> separately.
>
> I'm fixing this differently, by strengthening the exception specs as
> Marc suggested. I haven't addressed Marc's other comments, but we
> should do.
>
> Tested x86_64-linux, committed to trunk.
Thanks,

The latest library fundamentals paper has a lot of changes coming - a 
lot of constexpr in the find type functions.  Unfortunately, most of 
that will wave to wait until we get C++14 constexpr.

Also, if the built-in strlen is or could be made constexpr then all the 
char* ctors could be constexpr as well.