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Re: [Patch] libstdc++/13943

Gabriel Dos Reis wrote:

>| -  inline long long
>| -  llabs(long long __x) { return __x >= 0 ? __x : -__x; }
>| -
>|  #if !_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC
>| +  using ::llabs;
>
>This means that we provide llabs() only if 
>!_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC.  That looks to me like a ABI breakage
>from previous version.  Similar to the lldiv() case.  
>Is my reading correct?
>  
>
Well, I would not call it an ABI breakage, because, simply, if
_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC the code would not compile. Which
binary interface are we breaking? Also, I think that when
_GLIBCXX_USE_C99_LONG_LONG_DYNAMIC, indeed, the user expects long long
functions *not* being available.

Paolo.
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