17 files changed, 1133 insertions, 0 deletions
diff --git a/nuttx/include/cxx/cassert b/nuttx/include/cxx/cassert
new file mode 100644
index 000000000..b67592c2b
--- /dev/null
+++ b/nuttx/include/cxx/cassert
@@ -0,0 +1,49 @@
+//***************************************************************************
+// include/cxx/cassert
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CASSERT
+#define __INCLUDE_CXX_CASSERT
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <assert.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+#endif // __INCLUDE_CXX_CASSERT
diff --git a/nuttx/include/cxx/cctype b/nuttx/include/cxx/cctype
new file mode 100644
index 000000000..5d3b6dc70
--- /dev/null
+++ b/nuttx/include/cxx/cctype
@@ -0,0 +1,49 @@
+//***************************************************************************
+// include/cxx/cctype
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CCTYPE
+#define __INCLUDE_CXX_CCTYPE
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <ctype.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+#endif // __INCLUDE_CXX_CCTYPE
diff --git a/nuttx/include/cxx/cerrno b/nuttx/include/cxx/cerrno
new file mode 100644
index 000000000..59847df3b
--- /dev/null
+++ b/nuttx/include/cxx/cerrno
@@ -0,0 +1,49 @@
+//***************************************************************************
+// include/cxx/cerrno
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CERRNO
+#define __INCLUDE_CXX_CERRNO
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <errno.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+#endif // __INCLUDE_CXX_CERRNO
diff --git a/nuttx/include/cxx/cfcntl b/nuttx/include/cxx/cfcntl
new file mode 100644
index 000000000..6907a5348
--- /dev/null
+++ b/nuttx/include/cxx/cfcntl
@@ -0,0 +1,57 @@
+//***************************************************************************
+// include/cxx/cfcntl
+//
+//   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CFCNTL
+#define __INCLUDE_CXX_CFCNTL
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <fcntl.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::flock;
+  using ::creat;
+  using ::open;
+  using ::fcntl;
+}
+
+#endif // __INCLUDE_CXX_CFCNTL
diff --git a/nuttx/include/cxx/climits b/nuttx/include/cxx/climits
new file mode 100644
index 000000000..2cd543a0e
--- /dev/null
+++ b/nuttx/include/cxx/climits
@@ -0,0 +1,49 @@
+//***************************************************************************
+// include/cxx/climits
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CLIMITS
+#define __INCLUDE_CXX_CLIMITS
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <limits.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+#endif // __INCLUDE_CXX_CLIMITS
diff --git a/nuttx/include/cxx/cmath b/nuttx/include/cxx/cmath
new file mode 100644
index 000000000..7cb3a2109
--- /dev/null
+++ b/nuttx/include/cxx/cmath
@@ -0,0 +1,75 @@
+//***************************************************************************
+// include/cxx/cmath
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CMATH
+#define __INCLUDE_CXX_CMATH
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <math.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::acos;
+  using ::asin;
+  using ::atan;
+  using ::atan2;
+  using ::ceil;
+  using ::cos;
+  using ::cosh;
+  using ::exp;
+  using ::fabs;
+  using ::floor;
+  using ::fmod;
+  using ::frexp;
+  using ::ldexp;
+  using ::log;
+  using ::log10;
+  using ::modf;
+  using ::pow;
+  using ::sin;
+  using ::sinh;
+  using ::sqrt;
+  using ::tan;
+  using ::tanh;
+}
+
+#endif // __INCLUDE_CXX_CMATH
diff --git a/nuttx/include/cxx/csched b/nuttx/include/cxx/csched
new file mode 100644
index 000000000..262782888
--- /dev/null
+++ b/nuttx/include/cxx/csched
@@ -0,0 +1,74 @@
+//***************************************************************************
+// include/cxx/cfcntl
+//
+//   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CSCHED
+#define __INCLUDE_CXX_CSCHED
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <sched.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::sched_param;
+  using ::task_init;
+  using ::task_activate;
+  using ::task_create;
+  using ::task_delete;
+  using ::task_restart;
+  using ::sched_setparam;
+  using ::sched_getparam;
+  using ::sched_setscheduler;
+  using ::sched_getscheduler;
+  using ::sched_get_priority_max;
+  using ::sched_get_priority_min;
+  using ::sched_rr_get_interval;
+  using ::sched_lock;
+  using ::sched_unlock;
+  using ::sched_lockcount;
+#ifdef CONFIG_SCHED_INSTRUMENTATION
+  using ::sched_note_start;
+  using ::sched_note_stop;
+  using ::sched_note_switch;
+#endif
+}
+
+#endif // __INCLUDE_CXX_CSCHED
diff --git a/nuttx/include/cxx/csignal b/nuttx/include/cxx/csignal
new file mode 100644
index 000000000..2303a864d
--- /dev/null
+++ b/nuttx/include/cxx/csignal
@@ -0,0 +1,72 @@
+//***************************************************************************
+// include/cxx/csignal
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CSIGNAL
+#define __INCLUDE_CXX_CSIGNAL
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <signal.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::sigset_t;
+  using ::sigval;
+  using ::sigevent;
+  using ::siginfo;
+  using ::siginfo_t;
+  using ::sigaction;
+  using ::kill;
+  using ::sigemptyset;
+  using ::sigfillset;
+  using ::sigaddset;
+  using ::sigdelset;
+  using ::sigismember;
+  using ::sigaction;
+  using ::sigprocmask;
+  using ::sigpending;
+  using ::sigsuspend;
+  using ::sigwaitinfo;
+  using ::sigtimedwait;
+  using ::sigqueue;
+}
+
+#endif // CSIGNAL_HEADER
diff --git a/nuttx/include/cxx/cstdarg b/nuttx/include/cxx/cstdarg
new file mode 100644
index 000000000..4964f8e7c
--- /dev/null
+++ b/nuttx/include/cxx/cstdarg
@@ -0,0 +1,49 @@
+//***************************************************************************
+// include/cxx/cstdarg
+//
+//   Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CSTDARG
+#define __INCLUDE_CXX_CSTDARG
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <stdarg.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+#endif // __INCLUDE_CXX_CSTDARG
diff --git a/nuttx/include/cxx/cstdbool b/nuttx/include/cxx/cstdbool
new file mode 100644
index 000000000..d2f0639d2
--- /dev/null
+++ b/nuttx/include/cxx/cstdbool
@@ -0,0 +1,49 @@
+//***************************************************************************
+// include/cxx/cstdbool
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CSTDBOOL
+#define __INCLUDE_CXX_CSTDBOOL
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <stdbool.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+#endif // __INCLUDE_CXX_CSTDBOOL
diff --git a/nuttx/include/cxx/cstddef b/nuttx/include/cxx/cstddef
new file mode 100644
index 000000000..73dbcd526
--- /dev/null
+++ b/nuttx/include/cxx/cstddef
@@ -0,0 +1,81 @@
+//***************************************************************************
+// include/cxx/cstddef
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CCTYPE
+#define __INCLUDE_CXX_CCTYPE
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+
+#include <stddef.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  // Standard types
+
+  using ::float32;
+#ifndef CONFIG_HAVE_DOUBLE
+  using ::double_t;
+  using ::float64;
+#else
+  using ::double_t;
+  using ::float64;
+#endif
+  using ::mode_t;
+  using ::size_t;
+  using ::ssize_t;
+  using ::off_t;
+  using ::blksize_t;
+  using ::blkcnt_t;
+  using ::fpos_t;
+  using ::uid_t;
+  using ::gid_t;
+  using ::dev_t;
+  using ::ino_t;
+  using ::pid_t;
+
+  using ::socklen_t;
+  using ::sa_family_t;
+}
+
+#endif // __INCLUDE_CXX_CCTYPE
diff --git a/nuttx/include/cxx/cstdint b/nuttx/include/cxx/cstdint
new file mode 100644
index 000000000..d662c5dc7
--- /dev/null
+++ b/nuttx/include/cxx/cstdint
@@ -0,0 +1,81 @@
+//***************************************************************************
+// include/cxx/cstdint
+//
+//   Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CSTDINT
+#define __INCLUDE_CXX_CSTDINT
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <stdint.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::int8_t;
+  using ::int16_t;
+  using ::int32_t;
+  using ::int64_t;
+  using ::int_fast8_t;
+  using ::int_fast16_t;
+  using ::int_fast32_t;
+  using ::int_fast64_t;
+  using ::int_least8_t;
+  using ::int_least16_t;
+  using ::int_least32_t;
+  using ::int_least64_t;
+  using ::intmax_t;
+  using ::intptr_t;
+  using ::uint8_t;
+  using ::uint16_t;
+  using ::uint32_t;
+  using ::uint64_t;
+  using ::uint_fast8_t;
+  using ::uint_fast16_t;
+  using ::uint_fast32_t;
+  using ::uint_fast64_t;
+  using ::uint_least8_t;
+  using ::uint_least16_t;
+  using ::uint_least32_t;
+  using ::uint_least64_t;
+  using ::uintmax_t;
+  using ::uintptr_t;
+}
+
+#endif // __INCLUDE_CXX_CSTDINT
diff --git a/nuttx/include/cxx/cstdio b/nuttx/include/cxx/cstdio
new file mode 100644
index 000000000..900d429cb
--- /dev/null
+++ b/nuttx/include/cxx/cstdio
@@ -0,0 +1,86 @@
+//***************************************************************************
+// include/cxx/cstdio
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CCTYPE
+#define __INCLUDE_CXX_CCTYPE
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <nuttx/config.h>
+#include <stdio.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::FILE;
+  using ::fpos_t;
+  using ::size_t;
+  using ::fclose;
+  using ::fflush;
+  using ::feof;
+  using ::ferror;
+  using ::fgetc;
+  using ::fgetpos;
+  using ::fgets;
+  using ::fopen;
+  using ::fprintf;
+  using ::fputc;
+  using ::fputs;
+  using ::fread;
+  using ::fseek;
+  using ::fsetpos;
+  using ::ftell;
+  using ::fwrite;
+  using ::gets;
+  using ::printf;
+  using ::puts;
+  using ::rename;
+  using ::sprintf;
+  using ::snprintf;
+  using ::ungetc;
+  using ::vprintf;
+  using ::vfprintf;
+  using ::vsprintf;
+  using ::vsnprintf;
+  using ::fdopen;
+  using ::statfs;
+}
+
+#endif // __INCLUDE_CXX_CCTYPE
diff --git a/nuttx/include/cxx/cstdlib b/nuttx/include/cxx/cstdlib
new file mode 100644
index 000000000..522f3fdb1
--- /dev/null
+++ b/nuttx/include/cxx/cstdlib
@@ -0,0 +1,84 @@
+//***************************************************************************
+// include/cxx/cstdlib
+//
+//   Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CSTDLIB
+#define __INCLUDE_CXX_CSTDLIB
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <nuttx/config.h>
+#include <stdlib.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::srand;
+  using ::rand;
+
+#ifndef CONFIG_DISABLE_ENIVRON
+  using ::getenv;
+  using ::putenv;
+  using ::clearenv;
+  using ::setenv;
+  using ::unsetenv;
+#endif
+
+  using ::exit;
+  using ::abort;
+#ifdef CONFIG_SCHED_ATEXIT
+  using ::atexit;
+#endif
+#ifdef CONFIG_SCHED_ONEXIT
+  using ::on_exit;
+#endif
+
+  using ::strtol;
+  using ::strtod;
+
+  using ::malloc;
+  using ::free;
+  using ::realloc;
+  using ::memalign;
+  using ::zalloc;
+  using ::calloc;
+  using ::mallinfo;
+}
+
+#endif // __INCLUDE_CXX_CSTDLIB
diff --git a/nuttx/include/cxx/cstring b/nuttx/include/cxx/cstring
new file mode 100644
index 000000000..84d98277d
--- /dev/null
+++ b/nuttx/include/cxx/cstring
@@ -0,0 +1,85 @@
+//***************************************************************************
+// include/cxx/cstring
+//
+//   Copyright (C) 2009-2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CSTRING
+#define __INCLUDE_CXX_CSTRING
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <nuttx/config.h>
+#include <string.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::size_t;
+
+  using ::strdup;
+  using ::strndup;
+  using ::strerror;
+  using ::strlen;
+  using ::strnlen;
+  using ::strcat;
+  using ::strncat;
+  using ::strcmp;
+  using ::strncmp;
+  using ::strcasecmp;
+  using ::strncasecmp;
+  using ::strcpy;
+  using ::strncpy;
+  using ::strpbrk;
+  using ::strchr;
+  using ::strrchr;
+  using ::strspn;
+  using ::strcspn;
+  using ::strstr;
+  using ::strcasestr;
+  using ::strtok;
+  using ::strtok_r;
+
+  using ::memchr;
+  using ::memccpy;
+  using ::memcmp;
+  using ::memcpy;
+  using ::memmove;
+  using ::memset;
+}
+
+#endif // __INCLUDE_CXX_CSTRING
diff --git a/nuttx/include/cxx/ctime b/nuttx/include/cxx/ctime
new file mode 100644
index 000000000..3d3dfaec1
--- /dev/null
+++ b/nuttx/include/cxx/ctime
@@ -0,0 +1,71 @@
+//***************************************************************************
+// include/cxx/ctime
+//
+//   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CTIME
+#define __INCLUDE_CXX_CTIME
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <time.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::size_t;
+  using ::time_t;
+  using ::clockid_t;
+  using ::timer_t;
+  using ::timespec;
+  using ::timeval;
+  using ::tm;
+  using ::itimerspec;
+  using ::sigevent;
+  using ::clock_settime;
+  using ::clock_gettime;
+  using ::mktime;
+  using ::gmtime_r;
+  using ::timer_create;
+  using ::timer_delete;
+  using ::timer_settime;
+  using ::timer_gettime;
+  using ::timer_getoverrun;
+}
+
+#endif // __INCLUDE_CXX_CTIME
diff --git a/nuttx/include/cxx/cunistd b/nuttx/include/cxx/cunistd
new file mode 100644
index 000000000..2f0b71270
--- /dev/null
+++ b/nuttx/include/cxx/cunistd
@@ -0,0 +1,73 @@
+//***************************************************************************
+// include/cxx/cunistd
+//
+//   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+//   Author: Gregory Nutt <gnutt@nuttx.org>
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in
+//    the documentation and/or other materials provided with the
+//    distribution.
+// 3. Neither the name NuttX nor the names of its contributors may be
+//    used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//***************************************************************************
+
+#ifndef __INCLUDE_CXX_CUNISTD
+#define __INCLUDE_CXX_CUNISTD
+
+//***************************************************************************
+// Included Files
+//***************************************************************************
+
+#include <unistd.h>
+
+//***************************************************************************
+// Namespace
+//***************************************************************************
+
+namespace std
+{
+  using ::getpid;
+  using ::_exit;
+  using ::sleep;
+  using ::usleep;
+  using ::close;
+  using ::dup;
+  using ::dup2;
+  using ::fsync;
+  using ::lseek;
+  using ::read;
+  using ::write;
+  using ::pipe;
+  using ::chdir;
+  using ::getcwd;
+  using ::unlink;
+  using ::rmdir;
+  using ::getopt;
+  using ::getoptargp;
+  using ::getopindgp;
+  using ::getoptoptp;
+}
+
+#endif // __INCLUDE_CXX_CUNISTD