https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126018
Bug ID: 126018
Summary: gfortran rejects character function invocation as stop
code
Product: gcc
Version: 16.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: damian at archaeologic dot codes
Target Milestone: ---
The following code is accepted by the NAG and LLVM flang compilers:
% cat character-function-stop-code.f90
implicit none
error stop character_stop_code()
contains
character(1) function character_stop_code()
character_stop_code = "a"
end function
end
% gfortran character-function-stop-code.f90
character-function-stop-code.f90:2:13:
2 | error stop character_stop_code()
| 1
Error: STOP code at (1) must be either INTEGER or CHARACTER type
% gfortran --version
GNU Fortran (Homebrew GCC 16.1.0) 16.1.0
gfortran 13.4.0, 14.3.0, and 15.3.0 all give the same error message. It would
be great if a fix could be back-ported at least to the 15 branch.
