aboutsummaryrefslogtreecommitdiff
path: root/REORG.TODO/bits/fenv.h
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/bits/fenv.h')
-rw-r--r--REORG.TODO/bits/fenv.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/REORG.TODO/bits/fenv.h b/REORG.TODO/bits/fenv.h
new file mode 100644
index 0000000000..b87f8400a6
--- /dev/null
+++ b/REORG.TODO/bits/fenv.h
@@ -0,0 +1,63 @@
+/* Copyright (C) 1997-2017 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+
+/* Here should be the exception be defined:
+ FE_INVALID
+ FE_DIVBYZERO
+ FE_OVERFLOW
+ FE_UNDERFLOW
+ FE_INEXACT
+ We define no macro which signals no exception is supported. */
+
+#define FE_ALL_EXCEPT 0
+
+
+/* Here should the rounding modes be defined:
+ FE_TONEAREST
+ FE_DOWNWARD
+ FE_UPWARD
+ FE_TOWARDZERO
+ We define no macro which signals no rounding mode is selectable. */
+
+
+/* Type representing exception flags. */
+typedef unsigned int fexcept_t;
+
+
+/* Type representing floating-point environment. */
+typedef struct
+ {
+ fexcept_t __excepts;
+ /* XXX I don't know what else we should save. */
+ }
+fenv_t;
+
+/* If the default argument is used we use this value. */
+#define FE_DFL_ENV ((const fenv_t *) -1l)
+
+#if __GLIBC_USE (IEC_60559_BFP_EXT)
+/* Type representing floating-point control modes. */
+typedef unsigned int femode_t;
+
+/* Default floating-point control modes. */
+# define FE_DFL_MODE ((const femode_t *) -1L)
+#endif