The following self-contained code should print the same for the bounds of xxx
and yyy (0:12). Instead it prints
bounds of yyy= 0 12
bounds of xxx= 1 13
% gfortran --version
GNU Fortran (GCC) 4.2.3 (Ubuntu 4.2.3-2ubuntu7)
This causes the current version of the Community Atmosphere Model (CAM), and
WRF 2.2.1 to fail. The code sample works as expected with PGI, XLF, and ifort.
This is my first bugzilla report. Apologies in advance if I missed any required
steps in reporting this bug.
To build and run:
% gfortran main.f90
% ./a.out
------------------------------------------------------------------------
program main
implicit none
real, target :: yyy(0:12)
data yyy/1.,2.,3.,4.,5.,6.,7.,8.,9.,10.,11.,12.,13./
real, pointer :: xxx(:)
xxx => yyy
write(6,*)'bounds of yyy=',lbound(yyy), ubound(yyy)
write(6,*)'bounds of xxx=',lbound(xxx), ubound(xxx)
end program main
--
Summary: gfortran generates incorrect lbound and ubound
Product: gcc
Version: 4.2.3
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rosinskijm at ornl dot gov
GCC build triplet: i686-pc-linux
GCC host triplet: i686-pc-linux
GCC target triplet: i686-pc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37317
