https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109043
Bug ID: 109043
Summary: Warning: Legacy Extension: Duplicate SAVE attribute
(also ASYNCHRONOUS, VOLATILE)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: anlauf at gcc dot gnu.org
Target Milestone: ---
The following code gives surprising warnings:
integer :: x, y, z
volatile :: x
volatile :: x
asynchronous :: y
asynchronous :: y
save :: z
save :: z
end
prxyz.f90:3:15:
3 | volatile :: x
| 1
Warning: Legacy Extension: Duplicate VOLATILE attribute specified at (1)
prxyz.f90:5:19:
5 | asynchronous :: y
| 1
Warning: Legacy Extension: Duplicate ASYNCHRONOUS attribute specified at (1)
prxyz.f90:7:11:
7 | save :: z
| 1
Warning: Legacy Extension: Duplicate SAVE attribute specified at (1)
I get errors instead of warnings when specifying -std=f2018, but they look
strange to me:
prxyz.f90:3:15:
3 | volatile :: x
| 1
Error: Legacy Extension: Duplicate VOLATILE attribute specified at (1)
prxyz.f90:5:19:
5 | asynchronous :: y
| 1
Error: Legacy Extension: Duplicate ASYNCHRONOUS attribute specified at (1)
prxyz.f90:7:11:
7 | save :: z
| 1
Error: Legacy Extension: Duplicate SAVE attribute specified at (1)
Does anybody know why these three were chosen to not give "normal" errors?
