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| author | Harald Anlauf <anlauf@gmx.de> | 2022-03-30 22:36:12 +0200 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2022-03-30 22:37:13 +0200 |
| commit | b4e4b35f4ebe561826489bed971324efc99c5423 (patch) | |
| tree | 8cc52527b8ba97d263e8169c881e22aa33cdb010 /gcc | |
| parent | e30c0657293bde1b4c48dcc3302ebfdf0bcfd375 (diff) | |
| download | gcc-b4e4b35f4ebe561826489bed971324efc99c5423.zip gcc-b4e4b35f4ebe561826489bed971324efc99c5423.tar.gz gcc-b4e4b35f4ebe561826489bed971324efc99c5423.tar.bz2 | |
Fortran: NULL pointer dereference checking arguments to ASSOCIATED intrinsic
gcc/fortran/ChangeLog:
PR fortran/100892
* check.cc (gfc_check_associated): Avoid NULL pointer dereference.
gcc/testsuite/ChangeLog:
PR fortran/100892
* gfortran.dg/associated_target_8.f90: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/fortran/check.cc | 2 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/associated_target_8.f90 | 16 |
2 files changed, 17 insertions, 1 deletions
diff --git a/gcc/fortran/check.cc b/gcc/fortran/check.cc index fc97bb1..0c2cb50 100644 --- a/gcc/fortran/check.cc +++ b/gcc/fortran/check.cc @@ -1504,7 +1504,7 @@ gfc_check_associated (gfc_expr *pointer, gfc_expr *target) argument of intrinsic inquiry functions. */ if (pointer->rank != -1 && !rank_check (target, 0, pointer->rank)) t = false; - if (target->rank > 0) + if (target->rank > 0 && target->ref) { for (i = 0; i < target->rank; i++) if (target->ref->u.ar.dimen_type[i] == DIMEN_VECTOR) diff --git a/gcc/testsuite/gfortran.dg/associated_target_8.f90 b/gcc/testsuite/gfortran.dg/associated_target_8.f90 new file mode 100644 index 0000000..75c2740 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/associated_target_8.f90 @@ -0,0 +1,16 @@ +! { dg-do compile } +! PR fortran/100892 - procedure pointer to function returning array of size n + +module m + implicit none + procedure(func1), pointer :: my_ptr => null() +contains + subroutine test_sub + if (associated (my_ptr, func1)) print *,'associated' + end subroutine test_sub + function func1 (n) + integer, intent(in) :: n + real, dimension(n) :: func1 + func1 = 0. + end function +end module m |