https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107266
--- Comment #6 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Fri, Oct 14, 2022 at 09:36:59PM +0000, burnus at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107266 > > --- Comment #5 from Tobias Burnus <burnus at gcc dot gnu.org> --- > I do note that we already have bind(C) + kind=4 examples: > https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/testsuite/gfortran.dg/PR100906.f90 > integer, parameter :: c_ucs4_char = 4 > and more. F2023 does not have an interoperable type of c_ucs4_char. F2023 has SELECTED_CHAR_KIND("ISO_10646"), which can be used as in the example code (see 22-007r1.pdf, 16.9.180): 14 SUBROUTINE create_date_string(string) 15 INTRINSIC date_and_time,selected_char_kind 16 INTEGER,PARAMETER :: ucs4 = selected_char_kind("ISO_10646") 17 CHARACTER(1,UCS4),PARAMETER :: nen=CHAR(INT(Z'5e74'),UCS4), & !year 18 gatsu=CHAR(INT(Z'6708'),UCS4), & !month 19 nichi=CHAR(INT(Z'65e5'),UCS4) !day 20 CHARACTER(len= *, kind= ucs4) string 21 INTEGER values(8) 22 CALL date_and_time(values=values) 23 WRITE(string,1) values(1),nen,values(2),gatsu,values(3),nichi 24 1 FORMAT(I0,A,I0,A,I0,A) 25 END SUBROUTINE Neither UCS4, ISO_10646, ISO 10646, nor 10646 appear in F2023 Section 18. On J3 Fortran github, there are no proposals/requests for interoperability with ISO 10646. > => Keep permitting it but fix it I'll update my patch to use "gfc_notify_std (GFC_STD_GNU, ...)" as this is clearly an extension to the Fortran standard.
