Sample test failure. Works on Sun Compiler, Mac g95 but fails on gfortran, by having spaces where character should be displayed.
[mac27:~] bmcinnes% more p.f CHARACTER FOR*(*) PARAMETER(FOR='(T114,A3, T1,A4, T5,A2, T7,A2, T9,A4, T27,A1, T +18,A6, T13,A5, T28,A1,T119,A3,T122,A3,T125,A2,T109,A1,T127,A2,T129 +,A1,T130,A1,T131,A1, T46,A1, T47,A3, T50,A1, T51,A3, T54,A1, T55,A +2, T57,A2, T59,A1,T183,A1, T60,A5, T69,A1, T70,A4, T75,A4, T80,A4, + T86,A4, T84,A2, T90,A1, T91,A1, T92,A1, T93,A1, T94,A1, T95,A1, T +96,A1, T97,A2, T99,A2,T101,A2,T103,A2,T105,A2,T107,A2, T44,A2,T134 +,A2, T29,A1, T30,A1, T65,A1, T66,A3,T195,A1,T196,A2,T198,A1, T33,A +2, T35:A1, T36:A1, T37:A1, T38:A1, T39:A1, T40:A1, T41:A1, T42:A1, +T178,A1,T179,A1, T74,A1,T182,A1,T132,A1,T133,A1,T109,A1,T109,A1,T1 +09,A1,T109,A1,T148,A1,T149,A1,T150,A1,T151,A1,T152,A1,T153,A1,T154 +,A1,T109,A1,T109,A1,T109,A1,T109,A1,T109,A1,T109,A1,T109,A1,T109,A +1,T109,A1,T171,A1,T109,A1,T109,A1,T109,A1,T109,A1,T109,A1,T155,A1, +T156,A1,T157,A1,T158,A1,T159,A1,T160,A1,T161,A1,T162,A1,T163,A1,T1 +64,A1,T165,A1,T166,A1,T167,A1,T168,A1,T109,A1)') character a(111) data a/111*'a'/ write(6,for)a end [mac27:~] bmcinnes% g95 p.f [mac27:~] bmcinnes% ./a.out a a a a a a aaaa aaaaaaaaa aa aa aa a aa aa aa aa a a a aaaaaaaa a a a a a aa a a a a aaaaaa a aaaaaaaaaaaaaaaaaaaaa a aa aa a aa [mac27:~] bmcinnes% gfortran p.f ld: warning, duplicate dylib /usr/local/gfortran/lib/libgcc_s.1.dylib [mac27:~] bmcinnes% ./a.out a a a a a a aaaa aaaaaaaaa aa aa aa a aa aa a a a aa aaaaaaaaaaaaaaaaaaaaa [mac27:~] bmcinnes% gfortran --version GNU Fortran (GCC) 4.3.0 20071017 (experimental) [trunk revision 129405] Copyright (C) 2007 Free Software Foundation, Inc. GNU Fortran comes with NO WARRANTY, to the extent permitted by law. You may redistribute copies of GNU Fortran under the terms of the GNU General Public License. For more information about these matters, see the file named COPYING [mac27:~] bmcinnes% -- Summary: tab format failure to display properly Product: gcc Version: 4.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: barry dot j dot mcinnes at noaa dot gov http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34782