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| author | Steven G. Kargl <kargl@gcc.gnu.org> | 2025-08-21 14:31:16 -0700 |
|---|---|---|
| committer | Jerry DeLisle <jvdelisle@gcc.gnu.org> | 2025-08-21 14:36:49 -0700 |
| commit | 2c1fd2fdb3029fdd3ea3f88fe635f37b3a5fae36 (patch) | |
| tree | 2f86c5df5b9549861804c639a0eeacc21774c465 | |
| parent | 625af54662b4ff95c40d7b91fbb047ada6b06622 (diff) | |
| download | gcc-2c1fd2fdb3029fdd3ea3f88fe635f37b3a5fae36.zip gcc-2c1fd2fdb3029fdd3ea3f88fe635f37b3a5fae36.tar.gz gcc-2c1fd2fdb3029fdd3ea3f88fe635f37b3a5fae36.tar.bz2 | |
Fortran: Fix NULL pointer issue.
PR fortran/121627
gcc/fortran/ChangeLog:
* module.cc (create_int_parameter_array): Avoid NULL
pointer dereference and enhance error message.
gcc/testsuite/ChangeLog:
* gfortran.dg/pr121627.f90: New test.
| -rw-r--r-- | gcc/fortran/module.cc | 7 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr121627.f90 | 5 |
2 files changed, 10 insertions, 2 deletions
diff --git a/gcc/fortran/module.cc b/gcc/fortran/module.cc index 070b316..e05b08b 100644 --- a/gcc/fortran/module.cc +++ b/gcc/fortran/module.cc @@ -7277,10 +7277,13 @@ create_int_parameter_array (const char *name, int size, gfc_expr *value, tmp_symtree = gfc_find_symtree (gfc_current_ns->sym_root, name); if (tmp_symtree != NULL) { - if (strcmp (modname, tmp_symtree->n.sym->module) == 0) + if (tmp_symtree->n.sym->module && + strcmp (modname, tmp_symtree->n.sym->module) == 0) return; else - gfc_error ("Symbol %qs already declared", name); + gfc_error ("Symbol %qs already declared at %L conflicts with " + "symbol in %qs at %C", name, + &tmp_symtree->n.sym->declared_at, modname); } gfc_get_sym_tree (name, gfc_current_ns, &tmp_symtree, false); diff --git a/gcc/testsuite/gfortran.dg/pr121627.f90 b/gcc/testsuite/gfortran.dg/pr121627.f90 new file mode 100644 index 0000000..c3ce218 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr121627.f90 @@ -0,0 +1,5 @@ +! { dg-do compile } +program real_kinds ! { dg-error "already declared at" } + use iso_fortran_env ! { dg-error "already declared at" } + i = real64 +end program real_kinds |