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-rw-r--r--gcc/cp/ChangeLog7
-rw-r--r--gcc/cp/rtti.c6
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-4.C22
4 files changed, 37 insertions, 3 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 0772ee9..42573ef 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,10 @@
+2011-11-30 Paolo Carlini <paolo.carlini@oracle.com>
+
+ PR c++/51299
+ * rtti.c (ifnonnull): Use nullptr_node.
+ (build_dynamic_cast_1): Call cp_truthvalue_conversion instead
+ of c_common_truthvalue_conversion.
+
2011-11-24 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51227
diff --git a/gcc/cp/rtti.c b/gcc/cp/rtti.c
index 818b8d0..4494fdd 100644
--- a/gcc/cp/rtti.c
+++ b/gcc/cp/rtti.c
@@ -503,8 +503,8 @@ ifnonnull (tree test, tree result)
{
return build3 (COND_EXPR, TREE_TYPE (result),
build2 (EQ_EXPR, boolean_type_node, test,
- cp_convert (TREE_TYPE (test), integer_zero_node)),
- cp_convert (TREE_TYPE (result), integer_zero_node),
+ cp_convert (TREE_TYPE (test), nullptr_node)),
+ cp_convert (TREE_TYPE (result), nullptr_node),
result);
}
@@ -747,7 +747,7 @@ build_dynamic_cast_1 (tree type, tree expr, tsubst_flags_t complain)
tree neq;
result = save_expr (result);
- neq = c_common_truthvalue_conversion (input_location, result);
+ neq = cp_truthvalue_conversion (result);
return cp_convert (type,
build3 (COND_EXPR, TREE_TYPE (result),
neq, result, bad));
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 3d695a2..fb13fb5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-30 Paolo Carlini <paolo.carlini@oracle.com>
+
+ PR c++/51299
+ * g++.dg/warn/Wzero-as-null-pointer-constant-4.C: New.
+
2011-11-29 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/51247
diff --git a/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-4.C b/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-4.C
new file mode 100644
index 0000000..548caac
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wzero-as-null-pointer-constant-4.C
@@ -0,0 +1,22 @@
+// PR c++/51299
+// { dg-options "-Wzero-as-null-pointer-constant" }
+
+class Base
+{
+ public:
+ virtual ~Base();
+};
+
+class Derived : public Base
+{
+};
+
+void foo(Base* b)
+{
+ Derived* d = dynamic_cast<Derived*>(b);
+}
+
+void bar(Base& b)
+{
+ Derived& d = dynamic_cast<Derived&>(b);
+}