aboutsummaryrefslogtreecommitdiff
path: root/misc/sys
diff options
context:
space:
mode:
Diffstat (limited to 'misc/sys')
-rw-r--r--misc/sys/cdefs.h27
1 files changed, 26 insertions, 1 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index ff9a891..72dbfde 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992,93,94,95,96,97,98,99,2000,2001 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -85,6 +85,31 @@
#endif
+/* The standard library needs the functions from the ISO C90 standard
+ in the std namespace. At the same time we want to be safe for
+ future changes and we include the ISO C99 code in the non-standard
+ namespace __c99. The C++ wrapper header take case of adding the
+ definitions to the global namespace. */
+#if defined __cplusplus && defined _GLIBCPP_USE_NAMESPACES
+# define __BEGIN_NAMESPACE_STD namespace std {
+# define __END_NAMESPACE_STD }
+# define __USING_NAMESPACE_STD(name) using std::name;
+# define __BEGIN_NAMESPACE_C99 namespace __c99 {
+# define __END_NAMESPACE_C99 }
+# define __USING_NAMESPACE_C99(name) using __c99::name;
+#else
+/* For compatibility we do not add the declarations into any
+ namespace. They will end up in the global namespace which is what
+ old code expects. */
+# define __BEGIN_NAMESPACE_STD
+# define __END_NAMESPACE_STD
+# define __USING_NAMESPACE_STD(name)
+# define __BEGIN_NAMESPACE_C99
+# define __END_NAMESPACE_C99
+# define __USING_NAMESPACE_C99(name)
+#endif
+
+
/* Support for bounded pointers. */
#ifndef __BOUNDED_POINTERS__
# define __bounded /* nothing */