+/** @file c++config.h
+ * This is an internal header file, included by other library headers.
+ * You should not attempt to use it directly.
+ */
+
+#ifndef _GLIBCXX_CXX_CONFIG_H
+#define _GLIBCXX_CXX_CONFIG_H 1
+
+// The current version of the C++ library in compressed ISO date format.
+#define __GLIBCXX__
+
+// Macros for visibility.
+// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
+// _GLIBCXX_VISIBILITY_ATTR
+#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
+
+#if _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
+# define _GLIBCXX_VISIBILITY_ATTR(V) __attribute__ ((__visibility__ (#V)))
+#else
+# define _GLIBCXX_VISIBILITY_ATTR(V)
+#endif
+
+// Macros for deprecated.
+// _GLIBCXX_DEPRECATED
+// _GLIBCXX_DEPRECATED_ATTR
+#ifndef _GLIBCXX_DEPRECATED
+# define _GLIBCXX_DEPRECATED 1
+#endif
+
+#if defined(__DEPRECATED) && defined(__GXX_EXPERIMENTAL_CXX0X__)
+# define _GLIBCXX_DEPRECATED_ATTR __attribute__ ((__deprecated__))
+#else
+# define _GLIBCXX_DEPRECATED_ATTR
+#endif
+
+// Macros for activating various namespace association modes.
+// _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG
+// _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL
+// _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
+
+// Guide to libstdc++ namespaces.
+/*
+ namespace std
+ {
+ namespace __debug { }
+ namespace __parallel { }
+ namespace __norm { } // __normative, __shadow, __replaced
+ namespace __cxx1998 { }
+
+ namespace tr1 { }
+ }
+*/
+#if __cplusplus
+
+#ifdef _GLIBCXX_DEBUG
+# define _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG 1
+#endif
+
+#ifdef _GLIBCXX_PARALLEL
+# define _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL 1
+#endif
+
+#define _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
+
+// Defined if any namespace association modes are active.
+#if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG \
+ || _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL \
+ || _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
+# define _GLIBCXX_USE_NAMESPACE_ASSOCIATION 1
+#endif
+
+// Macros for namespace scope. Either namespace std:: or the name
+// of some nested namespace within it.
+// _GLIBCXX_STD
+// _GLIBCXX_STD_D
+// _GLIBCXX_STD_P
+//
+// Macros for enclosing namespaces and possibly nested namespaces.
+// _GLIBCXX_BEGIN_NAMESPACE
+// _GLIBCXX_END_NAMESPACE
+// _GLIBCXX_BEGIN_NESTED_NAMESPACE
+// _GLIBCXX_END_NESTED_NAMESPACE
+#ifndef _GLIBCXX_USE_NAMESPACE_ASSOCIATION
+# define _GLIBCXX_STD_D _GLIBCXX_STD
+# define _GLIBCXX_STD_P _GLIBCXX_STD
+# define _GLIBCXX_STD std
+# define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) _GLIBCXX_BEGIN_NAMESPACE(X)
+# define _GLIBCXX_END_NESTED_NAMESPACE _GLIBCXX_END_NAMESPACE
+# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
+# define _GLIBCXX_END_NAMESPACE }
+#else
+
+# if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION // && not anything else
+# define _GLIBCXX_STD_D _GLIBCXX_STD
+# define _GLIBCXX_STD_P _GLIBCXX_STD
+# define _GLIBCXX_STD _6
+# define _GLIBCXX_BEGIN_NAMESPACE(X) _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, _6)
+# define _GLIBCXX_END_NAMESPACE _GLIBCXX_END_NESTED_NAMESPACE
+# endif
+
+// debug
+# if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG && !_GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL
+# define _GLIBCXX_STD_D __norm
+# define _GLIBCXX_STD_P _GLIBCXX_STD
+# define _GLIBCXX_STD __cxx1998
+# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
+# define _GLIBCXX_END_NAMESPACE }
+# define _GLIBCXX_EXTERN_TEMPLATE -1
+# endif
+
+// parallel
+# if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL && !_GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG
+# define _GLIBCXX_STD_D _GLIBCXX_STD
+# define _GLIBCXX_STD_P __norm
+# define _GLIBCXX_STD __cxx1998
+# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
+# define _GLIBCXX_END_NAMESPACE }
+# define _GLIBCXX_EXTERN_TEMPLATE -1
+# endif
+
+// debug + parallel
+# if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL && _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG
+# define _GLIBCXX_STD_D __norm
+# define _GLIBCXX_STD_P __norm
+# define _GLIBCXX_STD __cxx1998
+# define _GLIBCXX_BEGIN_NAMESPACE(X) namespace X _GLIBCXX_VISIBILITY_ATTR(default) {
+# define _GLIBCXX_END_NAMESPACE }
+# define _GLIBCXX_EXTERN_TEMPLATE -1
+# endif
+
+# if __NO_INLINE__ && !__GXX_WEAK__
+# warning currently using namespace associated mode which may fail \
+ without inlining due to lack of weak symbols
+# endif
+
+# define _GLIBCXX_BEGIN_NESTED_NAMESPACE(X, Y) namespace X { namespace Y _GLIBCXX_VISIBILITY_ATTR(default) {
+# define _GLIBCXX_END_NESTED_NAMESPACE } }
+#endif
+
+// Namespace associations for debug mode.
+#if _GLIBCXX_NAMESPACE_ASSOCIATION_DEBUG
+namespace std
+{
+ namespace __norm { }
+ inline namespace __debug { }
+ inline namespace __cxx1998 { }
+}
+#endif
+
+// Namespace associations for parallel mode.
+#if _GLIBCXX_NAMESPACE_ASSOCIATION_PARALLEL
+namespace std
+{
+ namespace __norm { }
+ inline namespace __parallel { }
+ inline namespace __cxx1998 { }
+}
+#endif
+
+// Namespace associations for versioning mode.
+#if _GLIBCXX_NAMESPACE_ASSOCIATION_VERSION
+namespace std
+{
+ inline namespace _6 { }
+}
+
+namespace __gnu_cxx
+{
+ inline namespace _6 { }
+}
+
+namespace std
+{
+ namespace tr1
+ {
+ inline namespace _6 { }
+ }
+}
+#endif
+
+// XXX GLIBCXX_ABI Deprecated
+// Define if compatibility should be provided for -mlong-double-64
+#undef _GLIBCXX_LONG_DOUBLE_COMPAT
+
+// Namespace associations for long double 128 mode.
+#if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
+namespace std
+{
+ inline namespace __gnu_cxx_ldbl128 { }
+}
+# define _GLIBCXX_LDBL_NAMESPACE __gnu_cxx_ldbl128::
+# define _GLIBCXX_BEGIN_LDBL_NAMESPACE namespace __gnu_cxx_ldbl128 {
+# define _GLIBCXX_END_LDBL_NAMESPACE }
+#else
+# define _GLIBCXX_LDBL_NAMESPACE
+# define _GLIBCXX_BEGIN_LDBL_NAMESPACE
+# define _GLIBCXX_END_LDBL_NAMESPACE
+#endif
+
+
+// Defines for C compatibility. In particular, define extern "C"
+// linkage only when using C++.
+# define _GLIBCXX_BEGIN_EXTERN_C extern "C" {
+# define _GLIBCXX_END_EXTERN_C }
+
+#else // !__cplusplus
+# undef _GLIBCXX_BEGIN_NAMESPACE
+# undef _GLIBCXX_END_NAMESPACE
+# define _GLIBCXX_BEGIN_NAMESPACE(X)
+# define _GLIBCXX_END_NAMESPACE
+# define _GLIBCXX_BEGIN_EXTERN_C
+# define _GLIBCXX_END_EXTERN_C
+#endif
+
+// First includes.