https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83980
Bug ID: 83980
Summary: Various issues with character length in array
constructors
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: anlauf at gmx dot de
Target Milestone: ---
Not sure if this one is tracked elsewhere. I started to look closer after
the obvious and necessary fix for pr83874 went in.
program gfcbug147
implicit none
type t_obstyp
character(len=8) :: name
end type t_obstyp
type (t_obstyp) ,parameter :: obstyp(2)= &
[ t_obstyp ('TEMP' ), &
t_obstyp ('RADAR' ) ]
character(len=8), parameter :: s1(*) = obstyp% name ! OK
character(len=*), parameter :: s2(2) = obstyp% name ! Error or ICE
character(len=*), parameter :: s3(*) = obstyp% name ! Error or ICE
end program gfcbug147
With 8.0 trunk rev. 256935 I get the following errors for the indicated
lines:
gfcbug147.f90:8:17:
t_obstyp ('RADAR' ) ]
1
Error: Different CHARACTER lengths (4/5) in array constructor at (1)
gfcbug147.f90:8:17:
t_obstyp ('RADAR' ) ]
1
Error: Different CHARACTER lengths (4/5) in array constructor at (1)
Same for 5.0 and earlier.
With 6.0 and 7.2.0 I get ICEs. E.g.
% gfc-7 gfcbug147.f90
f951: internal compiler error: Segmentation fault
0x879abb0 crash_signal
../../gcc-7.2.0/gcc/toplev.c:337
0x8287d29 add_init_expr_to_sym
../../gcc-7.2.0/gcc/fortran/decl.c:1678
0x82914d1 variable_decl
../../gcc-7.2.0/gcc/fortran/decl.c:2432
0x82914d1 gfc_match_data_decl()
../../gcc-7.2.0/gcc/fortran/decl.c:4888
0x82ef131 match_word
../../gcc-7.2.0/gcc/fortran/parse.c:65
0x82ef131 match_word
../../gcc-7.2.0/gcc/fortran/parse.c:54
0x82f1c81 decode_statement
../../gcc-7.2.0/gcc/fortran/parse.c:376
0x82f1c81 decode_statement
../../gcc-7.2.0/gcc/fortran/parse.c:295
0x82f344c next_free
../../gcc-7.2.0/gcc/fortran/parse.c:1223
0x82f344c next_statement
../../gcc-7.2.0/gcc/fortran/parse.c:1455
0x82f4c9f parse_spec
../../gcc-7.2.0/gcc/fortran/parse.c:3829
0x82f6cb3 parse_progunit
../../gcc-7.2.0/gcc/fortran/parse.c:5632
0x82f7fbb gfc_parse_file()
../../gcc-7.2.0/gcc/fortran/parse.c:6160
0x833ce33 gfc_be_parse_file
../../gcc-7.2.0/gcc/fortran/f95-lang.c:204
