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authorTobias Burnus <burnus@net-b.de>2011-09-14 08:26:07 +0200
committerTobias Burnus <burnus@gcc.gnu.org>2011-09-14 08:26:07 +0200
commitea8ad3e527332487c4e395a95d9588873a58a99b (patch)
treeea05e76ae4fb515f8b3075f732a237a358ae0f9f /gcc/fortran/resolve.c
parent95a45b570dac0fa415570b77a8ac874caba8481f (diff)
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re PR fortran/34547 (NULL(): Fortran 2003 changes, accepts invalid, ICE on invalid)
2011-09-14 Tobias Burnus <burnus@net-b.de> PR fortran/34547 PR fortran/50375 * check.c (gfc_check_null): Allow allocatables as MOLD to NULL. * resolve.c (resolve_transfer): Reject NULL without MOLD. * interface.c (gfc_procedure_use): Reject NULL without MOLD if no explicit interface is known. (gfc_search_interface): Reject NULL without MOLD if it would lead to ambiguity. 2011-09-14 Tobias Burnus <burnus@net-b.de> PR fortran/34547 PR fortran/50375 * gfortran.dg/null_5.f90: New. * gfortran.dg/null_6.f90: New. From-SVN: r178841
Diffstat (limited to 'gcc/fortran/resolve.c')
-rw-r--r--gcc/fortran/resolve.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c
index b038402..9aab836 100644
--- a/gcc/fortran/resolve.c
+++ b/gcc/fortran/resolve.c
@@ -8150,6 +8150,13 @@ resolve_transfer (gfc_code *code)
&& exp->value.op.op == INTRINSIC_PARENTHESES)
exp = exp->value.op.op1;
+ if (exp && exp->expr_type == EXPR_NULL && exp->ts.type == BT_UNKNOWN)
+ {
+ gfc_error ("NULL intrinsic at %L in data transfer statement requires "
+ "MOLD=", &exp->where);
+ return;
+ }
+
if (exp == NULL || (exp->expr_type != EXPR_VARIABLE
&& exp->expr_type != EXPR_FUNCTION))
return;