Jeff Garland writes:
I realize this is an experimental compiler, but I notice date-time isn't building because of an MPL failure. Similar problem in the MPL tests. I looked at the code, but I have no idea what the problem could be, possibly something simple?
Just looked into it, and it appears to be a GCC bug: they seem to disallow any cast notation in integral constant expressions, while section 5.19 [expr.const] para 1 explicitly allows type conversions to integral or enumeration types: [...] Floating literals (2.13.3) can appear only if they are cast to integral or enumeration types. Only type conversions to integral or enumeration types can be used. [...] If you could verify that the following stripped down version of the code in question is rejected, I'd submit a corresponding bug report: template< int n > struct int_ {}; typedef int_< static_cast<int>(5) > n; -- Aleksey Gurtovoy MetaCommunications Engineering