https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77584
Bug ID: 77584
Summary: Unclassifiable statement error with procedure pointer
using template named "structure_"
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: abensonca at gmail dot com
Target Milestone: ---
In gfortran 7.0.0 (r240119) the following causes an error on compilation:
module bug
abstract interface
double precision function structure_()
end function structure_
end interface
contains
double precision function a()
procedure(structure_), pointer :: b
end function a
end module bug
$ gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/home/abenson/Galacticus/Tools/libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --prefix=/home/abenson/Galacticus/Tools
--enable-languages=c,c++,fortran --disable-multilib
Thread model: posix
gcc version 7.0.0 20160913 (experimental) (GCC)
$ gfortran -c tmp.F90 -o tmp.o
tmp.F90:8:4:
procedure(structure_), pointer :: b
1
Error: Unclassifiable statement at (1)
The problem seems to occur only if the interface name begins with "structure",
so my guess is that this part of the name if being interpreted as a STRUCTURE
statement.
