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authorMike Frysinger <vapier@gentoo.org>2006-08-23 19:25:34 +0000
committerMike Frysinger <vapier@gentoo.org>2006-08-23 19:25:34 +0000
commite47414d975e0ba1fe3a5f329756a20daaf31fefa (patch)
tree5bd13dbe668b130ae6bb38afb9e260aa94e4c3de /libc/sysdeps/linux/sh/bits/fenv.h
parenta93c8678684329c262eff95d15561c0262fcf4c1 (diff)
import new headers from upstream via psm
Diffstat (limited to 'libc/sysdeps/linux/sh/bits/fenv.h')
-rw-r--r--libc/sysdeps/linux/sh/bits/fenv.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sh/bits/fenv.h b/libc/sysdeps/linux/sh/bits/fenv.h
new file mode 100644
index 000000000..cbbad92e1
--- /dev/null
+++ b/libc/sysdeps/linux/sh/bits/fenv.h
@@ -0,0 +1,72 @@
+/* Copyright (C) 1999, 2000 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+
+/* Define bits representing the exception. We use the bit positions
+ of the appropriate bits in the FPU control word. */
+enum
+ {
+ FE_INEXACT = 0x04,
+#define FE_INEXACT FE_INEXACT
+ FE_UNDERFLOW = 0x08,
+#define FE_UNDERFLOW FE_UNDERFLOW
+ FE_OVERFLOW = 0x10,
+#define FE_OVERFLOW FE_OVERFLOW
+ FE_DIVBYZERO = 0x20,
+#define FE_DIVBYZERO FE_DIVBYZERO
+ FE_INVALID = 0x40,
+#define FE_INVALID FE_INVALID
+ };
+
+#define FE_ALL_EXCEPT \
+ (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* The SH FPU supports all of the four defined rounding modes. We
+ use again the bit positions in the FPU control word as the values
+ for the appropriate macros. */
+enum
+ {
+ FE_TONEAREST = 0x0,
+#define FE_TONEAREST FE_TONEAREST
+ FE_TOWARDZERO = 0x1,
+#define FE_TOWARDZERO FE_TOWARDZERO
+ FE_UPWARD = 0x2,
+#define FE_UPWARD FE_UPWARD
+ FE_DOWNWARD = 0x3
+#define FE_DOWNWARD FE_DOWNWARD
+ };
+
+
+/* Type representing exception flags. */
+typedef unsigned short int fexcept_t;
+
+
+/* Type representing floating-point environment. This function corresponds
+ to the layout of the block written by the `fstenv'. */
+typedef struct
+ {
+ unsigned int __fpscr;
+ }
+fenv_t;
+
+/* If the default argument is used we use this value. */
+#define FE_DFL_ENV ((fenv_t *) -1)