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-rw-r--r--sysdeps/powerpc/feupdateenv.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/powerpc/feupdateenv.c b/sysdeps/powerpc/feupdateenv.c
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+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <fenv_libc.h>
+
+void
+feupdateenv (const fenv_t *envp)
+{
+  fenv_union_t old, new;
+
+  /* Save the currently set exceptions.  */
+  new.fenv = *envp;
+  old.fenv = fegetenv_register ();
+
+  /* Copy the set exceptions from `old' to `new'.  */
+  new.l[1] = new.l[1] & 0xE00000FF | old.l[1] & 0x1FFFFF00;
+
+  /* Atomically enable and raise (if appropriate) exceptions set in `new'. */
+  fesetenv_register (new.fenv);
+}