https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83811
Bug ID: 83811
Summary: fortran 'e' format broken for single digit exponents
Product: gcc
Version: 7.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libfortran
Assignee: unassigned at gcc dot gnu.org
Reporter: alexander.heger at monash dot edu
Target Milestone: ---
~/test>gfortran --version
GNU Fortran (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2)
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
~/test>cat test.f
program test
character*10 :: s
write(s, '(1pe5.0e1)') 1.e-4
print*,s
write(s, '(e5.1e1)') 1.e12
print*,s
end
~/test>gfortran test.f
~/test>./a.out
1.E+0
.1E+2
This does not look right to me. It broke some time with version 7.1.x (Fedora
26 default) but remains broken in 7.2.1 (Fedora 27). Was still OK in Fedora
25.
As a side note, if I replace the first 'e' by 'g' in each format string, the
formatting works as expected
1.E-4
*****
-Alexander
