2006-01-26 Paolo Carlini <pcarlini@suse.de>

	* include/tr1/cfenv: New.
	* include/Makefile.am: Add.
	* testsuite/tr1/8_c_compatibility/cfenv/functions.cc: New.
	* testsuite/tr1/8_c_compatibility/cfenv/types.cc: Likewise.
	* acinclude.m4 ([GLIBCXX_CHECK_C99_TR1]): Add <fenv.h> checks.
	* docs/html/ext/tr1.html: Update; add note.
	* include/Makefile.in: Regenerate.
	* config.h.in: Likewise.
	* configure: Likewise.	

	* testsuite/tr1/8_c_compatibility/complex/functions.cc: Tweak.
	* testsuite/tr1/8_c_compatibility/cctype/functions.cc: Likewise.

	* docs/html/faq/index.html: Fix link to tr1.html text; fix
	formatting.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110252 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 86 insertions, 0 deletions

diff --git a/libstdc++-v3/include/tr1/cfenv b/libstdc++-v3/include/tr1/cfenv
new file mode 100644
index 00000000000..d4e925a8bc3
--- /dev/null
+++ b/libstdc++-v3/include/tr1/cfenv
@@ -0,0 +1,86 @@
+// TR1 cctype -*- C++ -*-
+
+// Copyright (C) 2006 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+// USA.
+
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+
+/** @file 
+ *  This is a TR1 C++ Library header. 
+ */
+
+#ifndef _TR1_CFENV
+#define _TR1_CFENV 1
+
+#include <bits/c++config.h>
+
+#if _GLIBCXX_HAVE_FENV_H
+#include <fenv.h>
+#endif
+
+#if _GLIBCXX_USE_C99_FENV_TR1
+
+#undef feclearexcept
+#undef fegetexceptflag
+#undef feraiseexcept
+#undef fesetexceptflag
+#undef fetestexcept
+#undef fegetround
+#undef fesetround
+#undef fegetenv
+#undef feholdexcept
+#undef fesetenv
+#undef feupdateenv
+
+// namespace std::tr1
+namespace std
+{
+_GLIBCXX_BEGIN_NAMESPACE(tr1)
+
+  // types
+  using ::fenv_t;
+  using ::fexcept_t;
+
+  // functions
+  using ::feclearexcept;
+  using ::fegetexceptflag;
+  using ::feraiseexcept;
+  using ::fesetexceptflag;
+  using ::fetestexcept;
+
+  using ::fegetround;
+  using ::fesetround;
+
+  using ::fegetenv;
+  using ::feholdexcept;
+  using ::fesetenv;
+  using ::feupdateenv;
+  
+_GLIBCXX_END_NAMESPACE
+}
+
+#endif
+
+#endif