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authorHarald Anlauf <anlauf@gmx.de>2022-10-26 21:00:44 +0200
committerHarald Anlauf <anlauf@gmx.de>2022-10-26 22:23:44 +0200
commitf7d28818179247685f3c101f9f2f16366f56309b (patch)
tree97dbc2c8b0f9997bfc02643852f771e22f59f594 /gcc
parent068baae1864e2a8036beec3082d384a204e24201 (diff)
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Fortran: BOZ literal constants are not compatible to any type [PR103413]
gcc/fortran/ChangeLog: PR fortran/103413 * symbol.cc (gfc_type_compatible): A boz-literal-constant has no type and thus is not considered compatible to any type. gcc/testsuite/ChangeLog: PR fortran/103413 * gfortran.dg/illegal_boz_arg_4.f90: New test.
Diffstat (limited to 'gcc')
-rw-r--r--gcc/fortran/symbol.cc4
-rw-r--r--gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f9013
2 files changed, 17 insertions, 0 deletions
diff --git a/gcc/fortran/symbol.cc b/gcc/fortran/symbol.cc
index 6050359..49fb378 100644
--- a/gcc/fortran/symbol.cc
+++ b/gcc/fortran/symbol.cc
@@ -5139,6 +5139,10 @@ gfc_type_compatible (gfc_typespec *ts1, gfc_typespec *ts2)
bool is_union1 = (ts1->type == BT_UNION);
bool is_union2 = (ts2->type == BT_UNION);
+ /* A boz-literal-constant has no type. */
+ if (ts1->type == BT_BOZ || ts2->type == BT_BOZ)
+ return false;
+
if (is_class1
&& ts1->u.derived->components
&& ((ts1->u.derived->attr.is_class
diff --git a/gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f90 b/gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f90
new file mode 100644
index 0000000..856cfa9
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/illegal_boz_arg_4.f90
@@ -0,0 +1,13 @@
+! { dg-do compile }
+! { dg-options "-std=f2018" }
+! PR fortran/103413
+! Contributed by G.Steinmetz
+
+program p
+ type t
+ class(*), allocatable :: a
+ end type
+ type(t) :: x
+ allocate (x%a, source=z'1') ! { dg-error "type incompatible" }
+ allocate (x%a, mold=z'1') ! { dg-error "type incompatible" }
+end