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authorUlrich Drepper <drepper@redhat.com>1998-05-21 15:40:14 +0000
committerUlrich Drepper <drepper@redhat.com>1998-05-21 15:40:14 +0000
commit23f0c99c0eb54cd481167d5927dafc1650bcbca1 (patch)
treecd1db4054738b46da815bf3a258b143b20063170 /sysdeps/arm/fpu/bits/fenv.h
parent32c85e43ed25cc954cb9ba62a6aad7c9338a2a08 (diff)
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Update.
1998-05-21 15:27 Ulrich Drepper <drepper@cygnus.com> * wcsmbs/wcsnrtombs.c: Correct computation of result. * wcsmbs/wcsrtombs.c: Likewise. * wcsmbs/Makefile (tests): Add wcsmbs-tst1.c. * wcsmbs/wcsmbs-tst1.c: New file. * iconv/loop.c (COUNT_CONVERTED): Correct computation. * locale/C-ctype.c (_nl_C_LC_CTYPE): Define MB_CUR_MAX for C locale as 1. * locale/setlocale.c: Don't make _nl_current_* and _nl_C_* references weak. 1998-05-21 Philip Blundell <philb@gnu.org> * sysdeps/arm/fpu_control.h: Replace stub file with real implementation. * sysdeps/arm/fpu/bits/fenv.h: New file. * sysdeps/arm/fpu/fesetround.c: Likewise. * sysdeps/arm/fpu/fclrexcpt.c: Likewise. * sysdeps/arm/fpu/fsetexcptflag.c: Likewise. * sysdeps/arm/fpu/ftestexcpt.c: Likewise. * sysdeps/arm/fpu/fraiseexcpt.c: Likewise. * sysdeps/arm/fpu/fegetenv.c: Likewise. * sysdeps/arm/fpu/fesetenv.c: Likewise. 1998-05-21 16:34 Richard Henderson <rth@cygnus.com> * elf/dl-load.c (_dl_map_object_from_fd): Get file header with read instead of mmap.
Diffstat (limited to 'sysdeps/arm/fpu/bits/fenv.h')
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1 files changed, 58 insertions, 0 deletions
diff --git a/sysdeps/arm/fpu/bits/fenv.h b/sysdeps/arm/fpu/bits/fenv.h
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+/* Copyright (C) 1997, 1998 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 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. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+/* Define bits representing exceptions in the FPU status word. */
+enum
+ {
+ FE_INVALID = 1,
+#define FE_INVALID FE_INVALID
+ FE_DIVBYZERO = 2,
+#define FE_DIVBYZERO FE_DIVBYZERO
+ FE_OVERFLOW = 4,
+#define FE_OVERFLOW FE_OVERFLOW
+ FE_UNDERFLOW = 8,
+#define FE_UNDERFLOW FE_UNDERFLOW
+ };
+
+/* Amount to shift by to convert an exception to a mask bit. */
+#define FE_EXCEPTION_SHIFT 16
+
+/* All supported exceptions. */
+#define FE_ALL_EXCEPT \
+ (FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW)
+
+/* The ARM FPU basically only supports round-to-nearest. Other rounding
+ modes exist, but you have to encode them in the actual instruction. */
+#define FE_TONEAREST 0
+
+/* Type representing exception flags. */
+typedef unsigned long fexcept_t;
+
+/* Type representing floating-point environment. */
+typedef struct
+ {
+ unsigned long cw;
+ }
+fenv_t;
+
+/* If the default argument is used we use this value. */
+#define FE_DFL_ENV ((fenv_t *) -1l)