(routines): Remove them and &f from here.
* sys/socket.h: New file, wrapper for socket/sys/socket.h.
Thu Jul 11 00:22:40 1996 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/s_frexpl.c: New file. `long double'
implementation of frexp() function.
* sysdeps/libm-ieee754/s_ldexpl.c: New file. `long double'
implementation of ldexp() function.
* sysdeps/libm-i387/s_isnanl.c (isnanl): Mask explicit one
out before or'ing.
Thu Jul 11 20:09:55 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
+ * math/Makefile (calls): Add s_frexp, s_ldexp.
+ (routines): Remove them and &f from here.
+
+ * sys/socket.h: New file, wrapper for socket/sys/socket.h.
+
* nss/nss_files/files-service.c (getservbyname): Take second arg PROTO
and check it.
* catgets/gencat.c (write_out): Move code to determine new
best size out of inner loop.
+Thu Jul 11 00:22:40 1996 Ulrich Drepper <drepper@cygnus.com>
+
+ * sysdeps/libm-ieee754/s_frexpl.c: New file. `long double'
+ implementation of frexp() function.
+ * sysdeps/libm-ieee754/s_ldexpl.c: New file. `long double'
+ implementation of ldexp() function.
+
+ * sysdeps/libm-i387/s_isnanl.c (isnanl): Mask explicit one
+ out before or'ing.
+
Wed Jul 10 05:24:40 1996 David Mosberger-Tang <davidm@azstarnet.com>
* misc/mntent.c: Include <sys/types.h>.
[Q11] ``Where are the DST_* constants found in <sys/time.h> on many
systems?''
+
+[Q12] ``The `gencat' utility cannot process the input which are
+ successfully used on my Linux libc based system. Why?''
\f
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
[Q1] ``What systems does the GNU C Library run on?''
form the tools from the GNU gettext package are necessary. See
ftp://prep.ai.mit.edu/pub/gnu or better any mirror site.
-* lots of diskspace (for i386-linux this means, e.g., ~70MB).
+* lots of diskspace (for i?86-linux this means, e.g., ~70MB).
You should avoid compiling on a NFS mounted device. This is very
slow.
-* plenty of time (approx 1h for i386-linux on i586@133 or 2.5h on
+* plenty of time (approx 1h for i?86-linux on i586@133 or 2.5h on
i486@66 or 4.5h on i486@33).
If you have some more measurements let me know.
libc-5 current ELF libc
GNU libc will have the major number 6 and therefore you can have this
-additionally installed. For more information consult documenation for
+additionally installed. For more information consult documentation for
shared library handling. The Makefiles of GNU libc will automatically
generate the needed symbolic links which the linker will use.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
+
+[Q12] ``The `gencat' utility cannot process the input which are
+ successfully used on my Linux libc based system. Why?''
+
+[A12] {UD} Unlike the author of the `gencat' program which is distributed
+with Linux libc I have read the underlying standards before writing the
+code. It is completely compatible with the specification given in
+X/Open Portability Guide.
+
+To ease the transition from the Linux version some of the non-standard
+features are also present in the `gencat' program of GNU libc. This
+mainly includes the use of symbols for the message number and the automatic
+generation of header files which contain the needed #defines to map the
+symbols to integers.
+
+Here is a simple SED script to convert at least some Linux specific
+catalog files to the XPG4 form:
+
+-----------------------------------------------------------------------
+# Change catalog source in Linux specific format to standard XPG format.
+# Ulrich Drepper <drepper@cygnus.com>, 1996.
+#
+/^\$ #/ {
+ h
+ s/\$ #\([^ ]*\).*/\1/
+ x
+ s/\$ #[^ ]* *\(.*\)/\$ \1/
+}
+
+/^# / {
+ s/^# \(.*\)/\1/
+ G
+ s/\(.*\)\n\(.*\)/\2 \1/
+}
+-----------------------------------------------------------------------
+
+
+~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
\f
Answers were given by:
{UD} Ulrich Drepper, <drepper@cygnus.com>
# These functions are in libc instead of libm because __printf_fp
# calls them, so any program using printf will need them linked in,
# and we don't want to have to link every program with -lm.
-calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn
-routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts)) \
- s_frexp s_ldexp s_frexpf s_ldexpf
+calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp
+routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
long-c-yes = $(calls:=l)
distribute += $(long-c-yes:=.c)
int32_t se,hx,lx;
GET_LDOUBLE_WORDS(se,hx,lx,x);
se = (se & 0x7fff) << 1;
- lx |= hx;
- /* The additional &hx is required because Intel's extended format
- has the normally implicit 1 explicit present. Sigh! */
- se |= (u_int32_t)((lx|(-lx))&hx)>>31;
+ /* The additional & 0x7fffffff is required because Intel's
+ extended format has the normally implicit 1 explicit
+ present. Sigh! */
+ lx |= hx & 0x7fffffff;
+ se |= (u_int32_t)(lx|(-lx))>>31;
se = 0xfffe - se;
return (int)((u_int32_t)(se))>>16;
}
--- /dev/null
+/* s_frexpl.c -- long double version of s_frexp.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * for non-zero x
+ * x = frexpl(arg,&exp);
+ * return a long double fp quantity x such that 0.5 <= |x| <1.0
+ * and the corresponding binary exponent "exp". That is
+ * arg = x*2^exp.
+ * If arg is inf, 0.0, or NaN, then frexpl(arg,&exp) returns arg
+ * with *exp=0.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double
+#else
+static long double
+#endif
+#if LDBL_MANT_DIG == 64
+two65 = 3.68934881474191032320e+19L; /* 0x4040, 0x80000000, 0x00000000 */
+#else
+# error "Cannot handle this MANT_DIG"
+#endif
+
+
+#ifdef __STDC__
+ long double __frexpl(long double x, int *eptr)
+#else
+ long double __frexpl(x, eptr)
+ long double x; int *eptr;
+#endif
+{
+ u_int32_t se, hx, ix, lx;
+ GET_LDOUBLE_WORDS(se,hx,lx,x);
+ ix = 0x7fff&se;
+ *eptr = 0;
+ if(ix==0x7fff||((ix|hx|lx)==0)) return x; /* 0,inf,nan */
+ if (ix==0x0000) { /* subnormal */
+ x *= two65;
+ GET_LDOUBLE_EXP(se,x);
+ ix = se&0x7fff;
+ *eptr = -65;
+ }
+ *eptr += ix-16382;
+ se = (se & 0x8000) | 0x3ffe;
+ SET_LDOUBLE_EXP(x,se);
+ return x;
+}
+weak_alias (__frexpl, frexpl)
--- /dev/null
+/* s_ldexpl.c -- long double version of s_ldexp.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+#include "math.h"
+#include "math_private.h"
+#include <errno.h>
+
+#ifdef __STDC__
+ long double __ldexpl(long double value, int exp)
+#else
+ long double __ldexpl(value, exp)
+ long double value; int exp;
+#endif
+{
+ if(!__finitel(value)||value==0.0) return value;
+ value = __scalbnl(value,exp);
+ if(!__finitel(value)||value==0.0) errno = ERANGE;
+ return value;
+}
+weak_alias (__ldexpl, ldexpl)
projects / external / glibc.git / commitdiff