On 03/21/2018 11:25 AM, Jakub Jelinek wrote: > On Tue, Mar 20, 2018 at 12:41:25PM -0600, Jeff Law wrote: >> This is documented in the old manuals from DEC and I've found >> essentially the same documentation in Oracle/Sun's current documentation >> as well as old MIPS documentation. I have a high degree of confidence >> it exists in IBM's Fortran compilers as well. In contrast Intel & PCG's >> Fortran compilers do not seem to support this extension. > > My testing disagrees with the last one, at least ifort 17.0.4 handles > the default widths like this patch does with -fdec. I was going from what I could find in the online documentation. I could have missed it, or it could be undocumented behavior. Similarly for Portland Group's compiler -- I'm going on documented behavior that I could find online.
I don't think it materially changes things though. jeff