https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90290
Bug ID: 90290
Summary: -std=f2008 should reject non-constant stop and error
stop codes
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: thenlich+gccbug at gmail dot com
Target Milestone: ---
According to Fortran 2008, a stop-code in a stop-stmt or error-stop-stmt must
be either scalar-default-char-constant-expr or scalar-int-constant-expr
(Fortran 2018: scalar-default-char-expr or scalar-int-expr)
The following:
====
program errorstop
integer :: ec
read *, ec
stop ec
end program
====
compiles successfully with -std=f2008.
It should not: while the program is Fortran 2018 compliant, it is not Fortran
2008 compliant.
