https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96580
Bug ID: 96580
Summary: F2018 changes to date_and_time intrinsics
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: markeggleston at gcc dot gnu.org
Blocks: 85836
Target Milestone: ---
Prior to Fortran 2018:
VALUES (optional) shall be a rank-one default integer array. It is an INTENT
(OUT) argument. Its size shall be at least 8.
Fortran 2018:
VALUES (optional) shall be a rank-one array of type integer with a decimal
exponent range of at least four. It is an INTENT (OUT) argument. Its size shall
be at least 8.
For -std=f2008 and earlier arrays of integer type of other than default kind
should be rejected as the value argument. Currently 11.0 compiles with integers
of kind other than default including integer(1).
For -std=f2018 and -std=gnu arrays of integer type with kinds 2 and greater are
allowed, integer(1) is rejected.
Currently there are issues with gfortran manual documentation:
- minimum sizes are specified for the character arguments date, time and zones,
the standards do not specify a minimum size and gfortran allows smaller sizes.
- the VALUES argument is described as (Optional) The type shall be INTEGER(8),
which implies a scalar integer of kind 8.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85836
[Bug 85836] [meta-bug] Fortran 2018 support
