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-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/c-cppbuiltin.c2
-rw-r--r--gcc/testsuite/ChangeLog6
-rw-r--r--gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-1.C12
-rw-r--r--gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-2.C12
5 files changed, 38 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4561dba..0277695 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-06 Paolo Carlini <pcarlini@suse.de>
+
+ PR libstdc++/34680
+ * c-cppbuiltin.c (c_cpp_builtins): Define __GXX_RTTI, if appropriate.
+ * doc/cpp.texi ([Common Predefined Macros]): Document.
+
2008-01-06 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (ix86_emit_swsqrtsf): Use negative constants in
diff --git a/gcc/c-cppbuiltin.c b/gcc/c-cppbuiltin.c
index e201b05..86c3f9c 100644
--- a/gcc/c-cppbuiltin.c
+++ b/gcc/c-cppbuiltin.c
@@ -449,6 +449,8 @@ c_cpp_builtins (cpp_reader *pfile)
cpp_define (pfile, "__GXX_WEAK__=0");
if (warn_deprecated)
cpp_define (pfile, "__DEPRECATED");
+ if (flag_rtti)
+ cpp_define (pfile, "__GXX_RTTI");
if (cxx_dialect == cxx0x)
cpp_define (pfile, "__GXX_EXPERIMENTAL_CXX0X__");
}
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d66912b..0a0db6b 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2008-01-06 Paolo Carlini <pcarlini@suse.de>
+
+ PR libstdc++/34680
+ * g++.dg/rtti/predefined-rtti-macro-1.C: New.
+ * g++.dg/rtti/predefined-rtti-macro-2.C: Likewise.
+
2008-01-06 Paul Thomas <pault@gcc.gnu.org>
PR fortran/34545
diff --git a/gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-1.C b/gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-1.C
new file mode 100644
index 0000000..5c94bc1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-1.C
@@ -0,0 +1,12 @@
+// { dg-do compile }
+
+struct A { virtual ~A() { }; };
+struct B : A { };
+
+void f(B* bp)
+{
+ bp =
+#ifdef __GXX_RTTI
+ dynamic_cast<B*>(static_cast<A*>(0));
+#endif
+}
diff --git a/gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-2.C b/gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-2.C
new file mode 100644
index 0000000..284f2f6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/rtti/predefined-rtti-macro-2.C
@@ -0,0 +1,12 @@
+// { dg-do compile }
+// { dg-options "-fno-rtti" }
+
+struct B { };
+
+void f(B* bp)
+{
+ bp =
+#ifndef __GXX_RTTI
+ static_cast<B*>(0);
+#endif
+}