https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113671
Bug ID: 113671
Summary: Passing allocatable character(:) slices with negative
stride: invalid memory access / segfault
Product: gcc
Version: 13.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: orbisvicis+gcc at gmail dot com
Target Milestone: ---
Created attachment 57262
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57262&action=edit
Various conditions to explore the invalid memory access
When passing an allocatable character(:) slice with negative stride, gfortran
either segfaults or accesses invalid memory.
* GNU Fortran (GCC) 11.4.0 on Cygwin 3.4.7-1.x86_64 segfaults (invalid memory
access)
* x86_64 GFortran 13.2|trunk on godbolt.org accesses invalid memory
Actual output:
```
testing: 1 3 5
one
!
```
Expected output:
```
testing: 1 3 5
three
two
one
```
