[cfe-users] Failed formatted input using std::istream

Dmitri Shubin sbn at tbricks.com
Wed May 8 08:57:09 PDT 2013

On 05/07/2013 07:28 PM, David Blaikie wrote:
> Seems reasonable to me. Please file a bug at llvm.org/bugs 
> <http://llvm.org/bugs>

Filed http://llvm.org/bugs/show_bug.cgi?id=15934

Explanation from Howard Hinnant 

> libc++ has made no attempt to adhere to C++03, only to C++11.  And unfortunately this detail is a specification that has changed between C++03 and C++11.
> The sentence you quote has been removed from this paragraph, which is now [facet.num.get.virtuals].
> Additionally in the same section Stage 3 now says in part:
> The numeric value to be stored can be one of:
>    * zero, if the conversion function fails to convert the entire field.
>      ios_base::failbit is assigned to err.
> So libc++ does conform to C++11, but not C++03.  At this time we have no plans to modify libc++ to strictly adhere to the C++03 standard.

BTW, file the same case against latest libstdc++ -- 
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