On 6 September 2017 at 13:37, A.J. Bonnema wrote: > On 09/06/2017 02:26 PM, Jonathan Wakely wrote: >> >> On 6 September 2017 at 08:32, A.J. Bonnema wrote: >>> >>> Hello, >>> >>> I started using _Decimal64. According to the gcc extension this should >>> work > > <snip> >>> >>> N1154 is an outdated draft, the manual page refers to N1312 which >>> doesn't say anything about <decfloat>. No additional header is needed. > > I should have been less hasty. Probably read it in an outdated webpage. > I have been searching the web a lot for a solution. >> >> >> That manual page specifically talks about GNU C, not C++, are you >> using C or C++? > > > I am using C. Then it should work OK, and indeed it does work OK for me using Fedora 26 on x86_64.