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authorUlrich Drepper <drepper@redhat.com>1997-01-01 15:28:18 +0000
committerUlrich Drepper <drepper@redhat.com>1997-01-01 15:28:18 +0000
commit6bc31da01b1271826c8feefb5f0efdf22d64061c (patch)
tree14aacf79623cde45cda8b839a225609eb4873540 /sysdeps/libm-ieee754/e_sinhl.c
parentea971c878fda0a93a568732ca5a8a36524f77ec2 (diff)
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update from main archive 970101 cvs/libc-970102
Wed Jan  1 15:15:00 1997  Ulrich Drepper  <drepper@cygnus.com>

	* libio/Makefile (routines): Add fcloseall.
	* libio/fcloseall.c: New file.
	* libio/stdio.h [__USE_GNU]: Add prototype for fcloseall.
	* libio/iofclose.c: Don't close all streams when argument is NULL.

	* stdio/Makefile (routines): Add fcloseall.
	* stdio/fcloseall.c: New file.
	* stdio/stdio.h [__USE_GNU]: Add prototype for fcloseall.
	* stdio/fclose.c: Don't close all streams when argument is NULL.

	* manual/stdio.texi: Document fcloseall.

	* sysdeps/generic/abort.c: Call __fcloseall instead of fclose with
	NULL argument.

	* socket/sys/un.h (SUN_LEN): Add cast.

	* sunrpc/auth_unix.c (authunix_create): Change parameter types
	of uid, gid, and aup_gids to uid_t and gid_t respectively.
	(authunix_create_default): Likewise.
	(authunix_refresh): Correct cast for aup_gids assignment.
	* sunrpc/rpc/auth.h (authunix_create): Correct types in declaration.
	* sunrpc/rpc/auth_unix.h (struct authunix_parms): Correct field
	types to uid_t and gid_t respectively.
	(struct short_hand_verf): Likewise.
	Reported by Andreas Schwab.

	* sysdeps/ieee754/Makefile: New file.  Make sure ieee754.h gets
	installed.
	* sysdeps/ieee754/ieee754.h: Protect against multiple inclusion and
	use in C++ programs.

	* sysdeps/libm-i387/e_pow.S: New file.  Optimized ix87 assembler
	version of pow() function.
	* sysdeps/libm-i387/e_powf.S: New file.  Float version.
	* sysdeps/libm-i387/e_powl.S: New file.  Long double version.

	* sysdeps/libm-i387/s_expm1.S: New file.  Optimized ix87 assembler
	version of expm1() function.
	* sysdeps/libm-i387/s_expm1f.S: New file.  Float version.
	* sysdeps/libm-i387/s_expm1l.S: New file.  Long double version.

	* sysdeps/libm-i387/e_exp.S: Optimize handling of +-Inf.
	Better handling of computation stack from current NetBSD sources.
	* sysdeps/libm-i387/e_expf.S: Likewise.
	* sysdeps/libm-i387/e_expl.S: Likewise.

	* sysdeps/libm-i387/e_log.S: Use fstp instead of fincstp.
	* sysdeps/libm-i387/e_logf.S: Likewise.
	* sysdeps/libm-i387/e_logl.S: Likewise.
	* sysdeps/libm-i387/e_log10.S: Likewise.
	* sysdeps/libm-i387/e_log10f.S: Likewise.
	* sysdeps/libm-i387/e_log10l.S: Likewise.
	* sysdeps/libm-i387/s_asinh.S: Likewise.
	* sysdeps/libm-i387/s_asinhf.S: Likewise.
	* sysdeps/libm-i387/s_asinhl.S: Likewise.
	* sysdeps/libm-i387/s_significandl.S: Likewise.

	* sysdeps/libm-i387/s_ceil.S: Don't create stack frame.  Modify
	stack pointer directly.  Use 32 bit instead of 16 bit operations.
	* sysdeps/libm-i387/s_ceilf.S: Likewise.
	* sysdeps/libm-i387/s_ceill.S: Likewise.
	* sysdeps/libm-i387/s_floor.S: Likewise.
	* sysdeps/libm-i387/s_floorf.S: Likewise.
	* sysdeps/libm-i387/s_floorl.S: Likewise.

	* sysdeps/libm-ieee754/e_coshf.c (huge): Don't declare volatile.
	* sysdeps/libm-ieee754/e_expf.c: Likewise.
	* sysdeps/libm-ieee754/e_powf.c: Likewise.
	From current NetBSD sources.

	* sysdeps/libm-ieee754/e_hypot.c (__ieee754_hypot): Don't initialize
	`a' and `b' in definition.
	* sysdeps/libm-ieee754/e_hypotf.c: Likewise.

	* sysdeps/libm-ieee754/e_hypotl.c: New file.  Long double
	implementation.
	* sysdeps/libm-ieee754/e_sinhl.c: New file.  Long double
	implementation.
	* sysdeps/stub/e_hypotl.c: Removed.  We have a real version now.
	* sysdeps/stub/e_sinhl.c: Removed.

	* sysdeps/posix/sigpause.c (__sigpause): Use sigdelset instead of
	sigaddset.  Reported by Andreas Schwab.
	(__default_sigpause): New function.  Call __sigpause as BSD version.
	Make this the default function by providing alias sigpause.
	* sysdeps/stub/sigpause.c (__default_sigpause): New funciton.
	Simply fail.  Provide alias sigpause.

Wed Jan  1 12:34:54 1997  Ulrich Drepper  <drepper@cygnus.com>

	* po/es.po: Update for glibc-1.98.
	* po/fr.po: Likewise.
	* po/sv.po: New file.  Swedish translation.

Wed Jan  1 12:18:07 1997   MacGyver  <macgyver@tos.net>

	* values.h: Fix typos: use SHRT_MAX but SHORT_MAX and SHRT_MIN but
	SHORT_MIN.

Tue Dec 24 23:10:21 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile: Replace `stubs.h' by `gnu/stubs.h'.
	* features.h: Include <gnu/stubs.h> instead of <stubs.h>.

Tue Dec 24 22:16:55 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makefile (subdirs): Move `elf' last so that librtld.so isn't
	relinked in the `make others' pass if an add-on adds something to
	libc.

Mon Dec 23 21:23:16 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/abort-instr.h: New File.

Mon Dec 23 21:16:38 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/m68k/Makefile ($(subdir)=elf): Define CFLAGS-rtld.c
	to prevent warning.

Mon Dec 23 21:14:22 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* resolv/Makefile (subdirs-dirs): Define.

Mon Dec 23 20:56:49 1996  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/gnu/utmpbits.h (struct utmp): Fix padding.

Mon Dec 30 11:05:11 1996  Ulrich Drepper  <drepper@cygnus.com>

	Update from ADO tzcode1996o.
	* time/difftime.c: De-ANSI-declfy.  Simplify computation of hibit
	according to ADO version.
	* time/zic.c: Correct typo is message.

	Update from ADO tzdata1996n.
	* time/asia: Updated.
	* time/australasia: Likewise.
	* time/europe: Likewise.
	* time/northamerica: Likewise.
	* time/southamerica: Likewise.
Diffstat (limited to 'sysdeps/libm-ieee754/e_sinhl.c')
-rw-r--r--sysdeps/libm-ieee754/e_sinhl.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/e_sinhl.c b/sysdeps/libm-ieee754/e_sinhl.c
new file mode 100644
index 0000000000..2d98562f94
--- /dev/null
+++ b/sysdeps/libm-ieee754/e_sinhl.c
@@ -0,0 +1,91 @@
+/* e_asinhl.c -- long double version of e_asinh.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/* __ieee754_sinhl(x)
+ * Method :
+ * mathematically sinh(x) if defined to be (exp(x)-exp(-x))/2
+ *	1. Replace x by |x| (sinhl(-x) = -sinhl(x)).
+ *	2.
+ *		                                     E + E/(E+1)
+ *	    0        <= x <= 25     :  sinhl(x) := --------------, E=expm1l(x)
+ *			       			         2
+ *
+ *	    25       <= x <= lnovft :  sinhl(x) := expl(x)/2
+ *	    lnovft   <= x <= ln2ovft:  sinhl(x) := expl(x/2)/2 * expl(x/2)
+ *	    ln2ovft  <  x	    :  sinhl(x) := x*shuge (overflow)
+ *
+ * Special cases:
+ *	sinhl(x) is |x| if x is +INF, -INF, or NaN.
+ *	only sinhl(0)=0 is exact for finite x.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double one = 1.0, shuge = 1.0e4931L;
+#else
+static long double one = 1.0, shuge = 1.0e4931L;
+#endif
+
+#ifdef __STDC__
+	long double __ieee754_sinhl(long double x)
+#else
+	long double __ieee754_sinhl(x)
+	long double x;
+#endif
+{
+	long double t,w,h;
+	u_int32_t jx,ix,i0,i1;
+
+    /* Words of |x|. */
+	GET_LDOUBLE_WORDS(jx,i0,i1,x);
+	ix = jx&0x7fff;
+
+    /* x is INF or NaN */
+	if(ix==0x7fff) return x+x;
+
+	h = 0.5;
+	if (jx<0) h = -h;
+    /* |x| in [0,25], return sign(x)*0.5*(E+E/(E+1))) */
+	if (ix < 0x4003 || (ix == 0x4003 && i0 <= 0xc8000000)) { /* |x|<25 */
+	    if (ix<0x3fe3) 		/* |x|<2**-28 */
+		if(shuge+x>one) return x;/* sinh(tiny) = tiny with inexact */
+	    t = __expm1l(fabsl(x));
+	    if(ix<0x3fff) return h*(2.0*t-t*t/(t+one));
+	    return h*(t+t/(t+one));
+	}
+
+    /* |x| in [25, log(maxdouble)] return 0.5*exp(|x|) */
+	if (ix < 0x400c || (ix == 0x400c && i0 < 0xb17217f7))
+		return h*__ieee754_expl(fabsl(x));
+
+    /* |x| in [log(maxdouble), overflowthresold] */
+	if (ix<0x400c || (ix == 0x400c && (i0 < 0xb174ddc0
+					   || (i0 == 0xb174ddc0
+					       && i1 <= 0x31aec0ea)))) {
+	    w = __ieee754_expl(0.5*fabsl(x));
+	    t = h*w;
+	    return t*w;
+	}
+
+    /* |x| > overflowthresold, sinhl(x) overflow */
+	return x*shuge;
+}