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From: "jvdelisle at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libfortran/48852] Invalid spaces in list-directed output of complex constants
Date: Sat, 25 Apr 2015 03:33:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48852

--- Comment #11 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
IFORT does this:

 ---------------------------------
 (1.000000,0.0000000E+00) (-1.0000000E-25,0.0000000E+00)
 (-1.0000000E-25,0.0000000E+00) (1.000000,0.0000000E+00)
 (-3.4999999E-24,-3.4999999E-24) (-4.2000000E-24,-1.2700000E-23)
 (1.000000,0.0000000E+00) (-1.0000000E-25,0.0000000E+00)
 ---------------------------------

The program I am using is this:

print *, "---------------------------------"
print *, (1.0,0.0),(-1.0e-25,0.0)
print *, (-1.0e-25,0.0),(1.0,0.0)
print *, (-35.0e-25,-35.0e-25),(-42.0e-25,-127.0e-25)
print *, (1.0,0.0),(-1.0e-25,0.0)
print *, "---------------------------------"
end

I think Case A in Comment 10 looks best.