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authorUlrich Drepper <drepper@redhat.com>1997-05-31 00:47:04 +0000
committerUlrich Drepper <drepper@redhat.com>1997-05-31 00:47:04 +0000
commitf671aeab4e17d6dc1c3ca96ac5cb2c3e04570082 (patch)
tree4e9817a3ff486d961a430f8fd3ee39c5fdff32b2 /sysdeps/ieee754
parentd951286f645cc1d6f719c0c715620fc395c049d4 (diff)
1997-05-31 02:33 Ulrich Drepper <drepper@cygnus.com> * io/ftwtest-sh: More tests. * misc/tsearch.c: Rewrite tdestroy_recursive. * libio/libio.h: Define bits for libg++-2.8. 1997-05-30 22:21 Thorsten Kukuk <kukuk@vt.uni-paderborn.de> * nis/nss_nis/nis-hosts.c: Same changes as in nss/nss_files/files-hosts.c (Always use inet_pton). * nis/nss_nisplus/nisplus-hosts.c: Likewise. 1997-05-30 09:50 Richard Henderson <rth@tamu.edu> * manual/maint.texi: ECOFF hasn't been tested in ages and I don't plan on doing so ever again. Don't say alpha-linuxecoff is known to work. * elf/dl-lookup.c: Include <alloca.h>. * misc/tsearch.c: Include <string.h>. * posix/execle.c: Include <alloca.h>. * posix/execlp.c: Likewise. * stdio-common/printf_fphex.c: Include <string.h>. * sunrpc/xdr.c: Include <string.h>. * sysdeps/generic/memccpy.c: Include only <string.h>. * sunrpc/clnt_udp.c (clntudp_call): Make fromlen a size_t to fix parameters to network functions. * sunrpc/pmap_rmt.c (clnt_broadcast): Likewise. * sunrpc/svc_tcp.c (svctcp_create): Likewise with `len'. (rendezvous_request): Likewise. * sunrpc/svc_udp.c (svcudp_bufcreate): Likewise. (svcudp_recv): Similar, but go through a local variable. The old code used &xprt->xp_addrlen. Someone should determine if the type of the structure member should be changed instead. * sunrpc/xdr_rec.c (xdrrec_create): Expunge a ptr->int cast warning and transform a nonsense for-loop to a closed form calculation. (fill_input_buf): Another ptr->int warning. * sysdeps/alpha/Makefile: Temporarily turn on -mieee globally. This will last until I figure out how to build a parallel libm_ieee. * sysdeps/alpha/fpu/fclrexcpt.c, * sysdeps/alpha/fpu/fegetenv.c, * sysdeps/alpha/fpu/fegetround.c, * sysdeps/alpha/fpu/feholdexcpt.c, * sysdeps/alpha/fpu/fenvbits.h, * sysdeps/alpha/fpu/fesetenv.c, * sysdeps/alpha/fpu/fesetround.c, * sysdeps/alpha/fpu/feupdateenv.c, * sysdeps/alpha/fpu/fgetexcptflg.c, * sysdeps/alpha/fpu/fraiseexcpt.c, * sysdeps/alpha/fpu/fsetexcptflg.c, * sysdeps/alpha/fpu/ftestexcept.c: New files. There is, btw, a small kernel patch that must be applied as of 2.0.31-pre1 and 2.1.41 for this to work properly. * sysdeps/alpha/fpu/fpu_control.h: Update copyright. Change default FP mode to round to nearest, no exceptions as for Intel. * sysdeps/unix/sysv/linux/alpha/setfpucw.c: Add copyright. (rdfpcr): Use excb rather than trapb. Be more efficient about getting at the fpcr. (wrfpcr): Likewise. (__setfpucw): Reformat. * sysdeps/ieee754/huge_val.h: Change GCC's HUGE_VAL definition to use a single DI-mode integer instead of bytes. This produces better code on Alpha. Similar for HUGE_VALF. * sysdeps/ieee754/nan.h: Similar for NAN. Add NANF and NANL. * sysdeps/libm-ieee754/s_log2.c: Missing */ and weak_alias. * sysdeps/unix/alpha/sysdep.S: Tiny cleanups. * sysdeps/unix/sysv/linux/alpha/syscall.S: Likewise. * sysdeps/unix/sysv/linux/alpha/brk.S: Don't use jmp macro to make sure the stack frame is released the very instruction before the real jump out. * sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gnu/types.h: Undef some bits we may have gotten from <linux/posix_types.h>. * sysdeps/unix/sysv/linux/alpha/ioperm.c: Add definition for Miata. 1997-05-30 13:05 Ulrich Drepper <drepper@cygnus.com> * misc/tst-tsearch.c (mangle_tree): Update casts to prevent warnings. 1997-05-29 14:02 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/sysv/linux/sys/ttydefaults.h (CEOL, CSTATUS): Use correct value for _POSIX_VDISABLE. 1997-05-29 13:59 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makefile (manual/dir-add.texi): Force execution. 1997-05-29 13:57 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysexits.h: New file. 1997-05-29 13:55 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * stdlib/strfmon.c: Don't run past EOS after `='. 1997-02-27 10:34 Richard Henderson <rth@tamu.edu>
Diffstat (limited to 'sysdeps/ieee754')
-rw-r--r--sysdeps/ieee754/huge_val.h38
-rw-r--r--sysdeps/ieee754/nan.h37
2 files changed, 54 insertions, 21 deletions
diff --git a/sysdeps/ieee754/huge_val.h b/sysdeps/ieee754/huge_val.h
index 9d1785b75f..a2520859e4 100644
--- a/sysdeps/ieee754/huge_val.h
+++ b/sysdeps/ieee754/huge_val.h
@@ -27,6 +27,17 @@
/* IEEE positive infinity (-HUGE_VAL is negative infinity). */
+#ifdef __GNUC__
+
+#define HUGE_VAL \
+ (__extension__ \
+ ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \
+ { __l: 0x7ff0000000000000ULL }).__d)
+
+#else /* not GCC */
+
+typedef union { unsigned char __c[8]; double __d; } __huge_val_t;
+
#if __BYTE_ORDER == __BIG_ENDIAN
#define __HUGE_VAL_bytes { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 }
#endif
@@ -34,13 +45,9 @@
#define __HUGE_VAL_bytes { 0, 0, 0, 0, 0, 0, 0xf0, 0x7f }
#endif
-#define __huge_val_t union { unsigned char __c[8]; double __d; }
-#ifdef __GNUC__
-#define HUGE_VAL (__extension__ \
- ((__huge_val_t) { __c: __HUGE_VAL_bytes }).__d)
-#else /* Not GCC. */
static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
#define HUGE_VAL (__huge_val.__d)
+
#endif /* GCC. */
@@ -48,6 +55,17 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
#ifdef __USE_ISOC9X
+#ifdef __GNUC__
+
+#define HUGE_VALF \
+ (__extension__ \
+ ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; }) \
+ { __l: 0x7f800000UL }).__d)
+
+#else /* not GCC */
+
+typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
+
#if __BYTE_ORDER == __BIG_ENDIAN
#define __HUGE_VALF_bytes { 0x7f, 0x80, 0, 0 }
#endif
@@ -55,13 +73,9 @@ static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
#define __HUGE_VALF_bytes { 0, 0, 0x80, 0x7f }
#endif
-#define __huge_valf_t union { unsigned char __c[4]; float __f; }
-#ifdef __GNUC__
-#define HUGE_VALF (__extension__ \
- ((__huge_valf_t) { __c: __HUGE_VALF_bytes }).__f)
-#else /* Not GCC. */
static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
#define HUGE_VALF (__huge_valf.__f)
+
#endif /* GCC. */
@@ -69,6 +83,6 @@ static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
same as `double'. */
#define HUGE_VALL HUGE_VAL
-#endif /* __USE_ISOC9X. */
+#endif /* __USE_ISOC9X. */
-#endif /* huge_val.h */
+#endif /* huge_val.h */
diff --git a/sysdeps/ieee754/nan.h b/sysdeps/ieee754/nan.h
index bea98d96d4..d4e6842562 100644
--- a/sysdeps/ieee754/nan.h
+++ b/sysdeps/ieee754/nan.h
@@ -1,5 +1,5 @@
/* `NAN' constant for IEEE 754 machines.
- Copyright (C) 1992, 1996 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1996, 1997 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
@@ -23,23 +23,42 @@
/* IEEE Not A Number. */
+#ifdef __GNUC__
+
+#define NAN \
+ (__extension__ \
+ ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; }) \
+ { __l: 0x7ff8000000000000ULL }).__d)
+
+#define NANF \
+ (__extension__ \
+ ((union { unsigned __l __attribute__((__mode__(__SI__))); flaot __d; }) \
+ { __l: 0x7fc00000UL }).__d)
+
+#else
+
#include <endian.h>
#if __BYTE_ORDER == __BIG_ENDIAN
#define __nan_bytes { 0x7f, 0xf8, 0, 0, 0, 0, 0, 0 }
+#define __nanf_bytes { 0x7f, 0xc0, 0, 0 }
#endif
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define __nan_bytes { 0, 0, 0, 0, 0, 0, 0xf8, 0x7f }
+#define __nanf_bytes { 0, 0, 0xc0, 0x7f }
#endif
-#ifdef __GNUC__
-#define NAN \
- (__extension__ ((union { unsigned char __c[8]; \
- double __d; }) \
- { __nan_bytes }).__d)
-#else /* Not GCC. */
-static CONST char __nan[8] = __nan_bytes;
-#define NAN (*(CONST double *) __nan)
+static union { unsigned char __c[8]; double __d; } __nan = { __nan_bytes };
+#define NAN (__nan.__d)
+
+static union { unsigned char __c[4]; double __d; } __nanf = { __nanf_bytes };
+#define NANF (__nanf.__d)
+
#endif /* GCC. */
+/* Generally there is no separate `long double' format and it is the
+ same as `double'. */
+
+#define NANL NAN
+
#endif /* nan.h */