[cfe-commits] [PATCH] Improved handling of 128-bit integer literals

[Stephen Canon]

On Nov 21, 2012, at 9:25 PM, Eli Friedman <eli.friedman at gmail.com> wrote:

> On Wed, Nov 21, 2012 at 1:27 PM, Stephen Canon <scanon at apple.com> wrote:
> 
>>        - On targets that support i128 (LP64 targets), literals that are too large to fit into [unsigned] long long become [unsigned] i128, as allowed by the paragraphs on "extended integer types" in the C and C++ standards.  We issue a warning in such cases because clang will differ from GCC.
> 
> This seems to violate the C requirement that intmax_t is able to
> represent any signed integer value, etc.

If that requirement is violated, it is violated by the existence of __int128_t, not by allowing literals of that type.

- Steve