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-rw-r--r--sysdeps/libm-ieee754/s_ceill.c89
-rw-r--r--sysdeps/libm-ieee754/s_copysignl.c43
-rw-r--r--sysdeps/libm-ieee754/s_fabsl.c40
-rw-r--r--sysdeps/libm-ieee754/s_finitel.c40
-rw-r--r--sysdeps/libm-ieee754/s_floorl.c89
-rw-r--r--sysdeps/libm-ieee754/s_isinf.c3
-rw-r--r--sysdeps/libm-ieee754/s_isinfl.c33
-rw-r--r--sysdeps/libm-ieee754/s_isnan.c7
-rw-r--r--sysdeps/libm-ieee754/s_isnanl.c44
-rw-r--r--sysdeps/libm-ieee754/s_nextafterl.c99
-rw-r--r--sysdeps/libm-ieee754/s_rintl.c96
-rw-r--r--sysdeps/libm-ieee754/s_scalbnl.c71
-rw-r--r--sysdeps/libm-ieee754/s_significandl.c39
13 files changed, 691 insertions, 2 deletions
diff --git a/sysdeps/libm-ieee754/s_ceill.c b/sysdeps/libm-ieee754/s_ceill.c
new file mode 100644
index 0000000000..c5c86487ea
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_ceill.c
@@ -0,0 +1,89 @@
+/* s_ceill.c -- long double version of s_ceil.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
+
+/*
+ * ceill(x)
+ * Return x rounded toward -inf to integral value
+ * Method:
+ * Bit twiddling.
+ * Exception:
+ * Inexact flag raised if x not equal to ceil(x).
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double huge = 1.0e4930;
+#else
+static long double huge = 1.0e4930;
+#endif
+
+#ifdef __STDC__
+ long double __ceill(long double x)
+#else
+ long double __ceill(x)
+ long double x;
+#endif
+{
+ int32_t i1,j0;
+ u_int32_t i,j,se,i0,sx;
+ GET_LDOUBLE_WORDS(se,i0,i1,x);
+ sx = (se>>15)&1;
+ j0 = (se&0x7fff)-0x3fff;
+ if(j0<32) {
+ if(j0<0) { /* raise inexact if x != 0 */
+ if(huge+x>0.0) {/* return 0*sign(x) if |x|<1 */
+ if(sx) {es=0x8000;i0=0;i1=0;}
+ else if((i0|i1)!=0) { es=0x3fff;i0=0;i1=0;}
+ }
+ } else {
+ i = (0xffffffff)>>j0;
+ if(((i0&i)|i1)==0) return x; /* x is integral */
+ if(huge+x>0.0) { /* raise inexact flag */
+ if(sx==0) {
+ if (j0>0) i0 += (0x80000000)>>(j0-1);
+ else ++se;
+ }
+ i0 &= (~i); i1=0;
+ }
+ }
+ } else if (j0>63) {
+ if(j0==0x4000) return x+x; /* inf or NaN */
+ else return x; /* x is integral */
+ } else {
+ i = ((u_int32_t)(0xffffffff))>>(j0-32);
+ if((i1&i)==0) return x; /* x is integral */
+ if(huge+x>0.0) { /* raise inexact flag */
+ if(sx==0) {
+ if(j0==32) i0+=1;
+ else {
+ j = i1 + (1<<(64-j0));
+ if(j<i1) i0+=1; /* got a carry */
+ i1 = j;
+ }
+ }
+ i1 &= (~i);
+ }
+ }
+ SET_LDOUBLE_WORDS(x,se,i0,i1);
+ return x;
+}
+weak_alias (__ceill, ceill)
diff --git a/sysdeps/libm-ieee754/s_copysignl.c b/sysdeps/libm-ieee754/s_copysignl.c
new file mode 100644
index 0000000000..9976575b3b
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_copysignl.c
@@ -0,0 +1,43 @@
+/* s_copysignl.c -- long double version of s_copysign.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: $";
+#endif
+
+/*
+ * copysignl(long double x, long double y)
+ * copysignl(x,y) returns a value with the magnitude of x and
+ * with the sign bit of y.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ long double __copysignl(long double x, long double y)
+#else
+ long double __copysignl(x,y)
+ long double x,y;
+#endif
+{
+ u_int32_t es1,es2;
+ GET_LDOUBLE_EXP(es1,x);
+ GET_LDOUBLE_EXP(es2,y);
+ SET_LDOUBLE_EXP(x,(es1&0x7fff)|(es2&0x8000));
+ return x;
+}
+weak_alias (__copysignl, copysignl)
diff --git a/sysdeps/libm-ieee754/s_fabsl.c b/sysdeps/libm-ieee754/s_fabsl.c
new file mode 100644
index 0000000000..f7170503fb
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_fabsl.c
@@ -0,0 +1,40 @@
+/* s_fabsl.c -- long double version of s_fabs.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * fabsl(x) returns the absolute value of x.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ long double __fabsl(long double x)
+#else
+ long double __fabsl(x)
+ long double x;
+#endif
+{
+ u_int32_t exp;
+ GET_LDOUBLE_EXP(exp,x);
+ SET_LDOUBLE_EXP(x,exp&0x7fff);
+ return x;
+}
+weak_alias (__fabsl, fabsl)
diff --git a/sysdeps/libm-ieee754/s_finitel.c b/sysdeps/libm-ieee754/s_finitel.c
new file mode 100644
index 0000000000..02487c610d
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_finitel.c
@@ -0,0 +1,40 @@
+/* s_finitel.c -- long double version of s_finite.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * finitel(x) returns 1 is x is finite, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ int __finite(long double x)
+#else
+ int __finite(x)
+ long double x;
+#endif
+{
+ int32_t exp;
+ GET_LDOUBLE_EXP(exp,x);
+ return (int)((u_int32_t)((exp&0x7fff)-0x7fff)>>15);
+}
+weak_alias (__finitel, finitel)
diff --git a/sysdeps/libm-ieee754/s_floorl.c b/sysdeps/libm-ieee754/s_floorl.c
new file mode 100644
index 0000000000..8cd81c6302
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_floorl.c
@@ -0,0 +1,89 @@
+/* s_floorl.c -- long double version of s_floor.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * floorl(x)
+ * Return x rounded toward -inf to integral value
+ * Method:
+ * Bit twiddling.
+ * Exception:
+ * Inexact flag raised if x not equal to floor(x).
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double huge = 1.0e4930;
+#else
+static long double huge = 1.0e4930;
+#endif
+
+#ifdef __STDC__
+ long double __floorl(long double x)
+#else
+ long double __floorl(x)
+ long double x;
+#endif
+{
+ int32_t i1,j0;
+ u_int32_t i,j,se,i0,sx;
+ GET_LDOUBLE_WORDS(se,i0,i1,x);
+ sx = (se>>15)&1;
+ j0 = (se&0x7fff)-0x3fff;
+ if(j0<32) {
+ if(j0<0) { /* raise inexact if x != 0 */
+ if(huge+x>0.0) {/* return 0*sign(x) if |x|<1 */
+ if(sx==0) {se=0;i0=i1=0;}
+ else if(((se&0x7fff)|i0|i1)!=0)
+ { se=0xbfff;i0;i1=0;}
+ }
+ } else {
+ i = (0xffffffff)>>j0;
+ if(((i0&i)|i1)==0) return x; /* x is integral */
+ if(huge+x>0.0) { /* raise inexact flag */
+ if(sx) {
+ if (j0>0) i0 += (0x80000000)>>(j0-1);
+ else ++se;
+ i0 &= (~i); i1=0;
+ }
+ }
+ } else if (j0>63) {
+ if(j0==0x4000) return x+x; /* inf or NaN */
+ else return x; /* x is integral */
+ } else {
+ i = ((u_int32_t)(0xffffffff))>>(j0-32);
+ if((i1&i)==0) return x; /* x is integral */
+ if(huge+x>0.0) { /* raise inexact flag */
+ if(sx) {
+ if(j0==32) i0+=1;
+ else {
+ j = i1+(1<<(64-j0));
+ if(j<i1) i0 +=1 ; /* got a carry */
+ i1=j;
+ }
+ }
+ i1 &= (~i);
+ }
+ }
+ SET_LDOUBLE_WORDS(x,se,i0,i1);
+ return x;
+}
+weak_alias (__floorl, floorl)
diff --git a/sysdeps/libm-ieee754/s_isinf.c b/sysdeps/libm-ieee754/s_isinf.c
index a54d97cba6..6d435f00b2 100644
--- a/sysdeps/libm-ieee754/s_isinf.c
+++ b/sysdeps/libm-ieee754/s_isinf.c
@@ -30,3 +30,6 @@ static char rcsid[] = "$NetBSD: s_isinf.c,v 1.3 1995/05/11 23:20:14 jtc Exp $";
return (hx == 0);
}
weak_alias (__isinf, isinf)
+#ifdef NO_LONG_DOUBLE
+weak_alias (__isinf, isinfl)
+#endif
diff --git a/sysdeps/libm-ieee754/s_isinfl.c b/sysdeps/libm-ieee754/s_isinfl.c
new file mode 100644
index 0000000000..22dff75444
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_isinfl.c
@@ -0,0 +1,33 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Change for long double by Ulrich Drepper <drepper@cygnus.com>.
+ * Public domain.
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * isinfl(x) returns 1 is x is inf, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ int __isinfl(long double x)
+#else
+ int __isinfl(x)
+ long double x;
+#endif
+{
+ int32_t se,hx,lx;
+ GET_LDOUBLE_WORDS(se,hx,lx,x);
+ se &= 0x7fff;
+ se ^= 0x7fff;
+ se |= hx | lx;
+ return (se == 0);
+}
+weak_alias (__isinfl, isinfl)
diff --git a/sysdeps/libm-ieee754/s_isnan.c b/sysdeps/libm-ieee754/s_isnan.c
index 2609a51968..4d8983c9b3 100644
--- a/sysdeps/libm-ieee754/s_isnan.c
+++ b/sysdeps/libm-ieee754/s_isnan.c
@@ -5,7 +5,7 @@
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
+ * software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
@@ -32,8 +32,11 @@ static char rcsid[] = "$NetBSD: s_isnan.c,v 1.8 1995/05/10 20:47:36 jtc Exp $";
int32_t hx,lx;
EXTRACT_WORDS(hx,lx,x);
hx &= 0x7fffffff;
- hx |= (u_int32_t)(lx|(-lx))>>31;
+ hx |= (u_int32_t)(lx|(-lx))>>31;
hx = 0x7ff00000 - hx;
return (int)((u_int32_t)(hx))>>31;
}
weak_alias (__isnan, isnan)
+#ifdef NO_LONG_DOUBLE
+weak_alias (__isnan, isnanl)
+#endif
diff --git a/sysdeps/libm-ieee754/s_isnanl.c b/sysdeps/libm-ieee754/s_isnanl.c
new file mode 100644
index 0000000000..0da97090bd
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_isnanl.c
@@ -0,0 +1,44 @@
+/* s_isnanl.c -- long double version of s_isnan.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * isnanl(x) returns 1 is x is nan, else 0;
+ * no branching!
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ int __isnanl(long double x)
+#else
+ int __isnanl(x)
+ long double x;
+#endif
+{
+ int32_t se,hx,lx;
+ GET_LDOUBLE_WORDS(se,hx,lx,x);
+ se = (se & 0x7fff) << 1;
+ hx |= lx;
+ se |= (u_int32_t)(hx|(-hx))>>31;
+ se = 0xfffe - se;
+ return (int)((u_int32_t)(se))>>16;
+}
+weak_alias (__isnanl, isnanl)
diff --git a/sysdeps/libm-ieee754/s_nextafterl.c b/sysdeps/libm-ieee754/s_nextafterl.c
new file mode 100644
index 0000000000..0327261f33
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_nextafterl.c
@@ -0,0 +1,99 @@
+/* s_nextafterl.c -- long double version of s_nextafter.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/* IEEE functions
+ * nextafterl(x,y)
+ * return the next machine floating-point number of x in the
+ * direction toward y.
+ * Special cases:
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ long double __nextafterl(long double x, long double y)
+#else
+ long double __nextafterl(x,y)
+ long double x,y;
+#endif
+{
+ int32_t hx,hy,ix,iy;
+ u_int32_t lx,ly,esx,esy;
+
+ GET_LDOUBLE_WORDS(esx,hx,lx,x);
+ GET_LDOUBLE_WORDS(esy,hy,ly,y);
+ ix = esx&0x7fff; /* |x| */
+ iy = esy&0x7fff; /* |y| */
+
+ if(((ix==0x7fff)&&((hx|lx)|-(hx|lx))!=0) || /* x is nan */
+ ((iy==0x7fff)&&((hy|ly)|-(hy|ly))!=0)) /* y is nan */
+ return x+y;
+ if(x==y) return x; /* x=y, return x */
+ if((ix|hx|lx)==0) { /* x == 0 */
+ SET_LDOUBLE_WORDS(x,esx&0x8000,0,1);/* return +-minsubnormal */
+ y = x*x;
+ if(y==x) return y; else return x; /* raise underflow flag */
+ }
+ if(esx<0x8000) { /* x > 0 */
+ if(ix>iy||((ix==iy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
+ /* x > y, x -= ulp */
+ if(lx==0) {
+ if (hx==0) esx -= 1;
+ hx -= 1;
+ }
+ lx -= 1;
+ } else { /* x < y, x += ulp */
+ lx += 1;
+ if(lx==0) {
+ hx += 1;
+ if (hx==0)
+ esx += 1;
+ }
+ }
+ } else { /* x < 0 */
+ if(esy>=0||(ix>iy||((ix==iy)&&(hx>hy||((hx==hy)&&(lx>ly)))))){
+ /* x < y, x -= ulp */
+ if(lx==0) {
+ if (hx==0) esx -= 1;
+ hx -= 1;
+ }
+ lx -= 1;
+ } else { /* x > y, x += ulp */
+ lx += 1;
+ if(lx==0) {
+ hx += 1;
+ if (hx==0) esx += 1;
+ }
+ }
+ }
+ esy = esx&0x7fff;
+ if(esy==0x7fff) return x+x; /* overflow */
+ if(esy==0) { /* underflow */
+ y = x*x;
+ if(y!=x) { /* raise underflow flag */
+ SET_LDOUBLE_WORDS(y,esx,hx,lx);
+ return y;
+ }
+ }
+ SET_LDOUBLE_WORDS(x,esx,hx,lx);
+ return x;
+}
+weak_alias (__nextafterl, nextafterl)
diff --git a/sysdeps/libm-ieee754/s_rintl.c b/sysdeps/libm-ieee754/s_rintl.c
new file mode 100644
index 0000000000..c9f12b162a
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_rintl.c
@@ -0,0 +1,96 @@
+/* s_rintl.c -- long double version of s_rint.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
+
+/*
+ * rintl(x)
+ * Return x rounded to integral value according to the prevailing
+ * rounding mode.
+ * Method:
+ * Using floating addition.
+ * Exception:
+ * Inexact flag raised if x not equal to rintl(x).
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double
+#else
+static long double
+#endif
+TWO64[2]={
+ 1.844674407370955161600000e+19, /* 0x403F, 0x00000000, 0x00000000 */
+ -1.844674407370955161600000e+19, /* 0xC03F, 0x00000000, 0x00000000 */
+};
+
+#ifdef __STDC__
+ long double __rintl(long double x)
+#else
+ long double __rintl(x)
+ long double x;
+#endif
+{
+ int32_t se,j0,sx;
+ u_int32_t i,i0,i1;
+ long double w,t;
+ GET_LDOUBLE_WORDS(se,i0,i1,x);
+ sx = (se>>15)&1;
+ j0 = (se&0x7fff)-0x3fff;
+ if(j0<32) {
+ if(j0<0) {
+ if(((se&0x7fff)|i0|i1)==0) return x;
+ i1 |= i0;
+ i0 &= 0xe0000000;
+ i0 |= (i1|-i1)&0x80000000;
+ SET_LDOUBLE_MSW(x,i0);
+ w = TWO64[sx]+x;
+ t = w-TWO64[sx];
+ GET_LDOUBLE_EXP(i0,t);
+ SET_LDOUBLE_EXP(t,(i0&0x7fff)|(sx<<15));
+ return t;
+ } else {
+ i = (0xffffffff)>>j0;
+ if(((i0&i)|i1)==0) return x; /* x is integral */
+ i>>=1;
+ if(((i0&i)|i1)!=0) {
+ if(j0==31) i1 = 0x40000000; else
+ i0 = (i0&(~i))|((0x20000000)>>j0);
+ /* Shouldn't this be
+ if (j0 >= 30) i1 = 0x80000000 >> (j0 - 30);
+ i0 = (i0&(~i))|((0x20000000)>>j0);
+ If yes, this should be correct in s_rint and
+ s_rintf, too. -- drepper@cygnus.com */
+ }
+ }
+ } else if (j0>63) {
+ if(j0==0x4000) return x+x; /* inf or NaN */
+ else return x; /* x is integral */
+ } else {
+ i = ((u_int32_t)(0xffffffff))>>(j0-32);
+ if((i1&i)==0) return x; /* x is integral */
+ i>>=1;
+ if((i1&i)!=0) i1 = (i1&(~i))|((0x40000000)>>(j0-32));
+ }
+ SET_LDOUBLE_WORDS(x,se,i0,i1);
+ w = TWO64[sx]+x;
+ return w-TWO64[sx];
+}
+weak_alias (__rintl, rintl)
diff --git a/sysdeps/libm-ieee754/s_scalbnl.c b/sysdeps/libm-ieee754/s_scalbnl.c
new file mode 100644
index 0000000000..d00eb88167
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_scalbnl.c
@@ -0,0 +1,71 @@
+/* s_scalbnl.c -- long double version of s_scalbn.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
+
+/*
+ * scalbnl (long double x, int n)
+ * scalbnl(x,n) returns x* 2**n computed by exponent
+ * manipulation rather than by actually performing an
+ * exponentiation or a multiplication.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+static const long double
+#else
+static long double
+#endif
+two54 = 1.80143985094819840000e+16, /* 0x43500000, 0x00000000 */
+twom54 = 5.55111512312578270212e-17, /* 0x3C900000, 0x00000000 */
+huge = 1.0e+300,
+tiny = 1.0e-300;
+
+#ifdef __STDC__
+ long double __scalbnl (long double x, int n)
+#else
+ long double __scalbnl (x,n)
+ long double x; int n;
+#endif
+{
+ int32_t k,es,hx,lx;
+ GET_LDOUBLE_WORDS(es,hx,lx,x);
+ k = es&0x7fff; /* extract exponent */
+ if (k==0) { /* 0 or subnormal x */
+ if ((lx|(hx&0x7fffffff))==0) return x; /* +-0 */
+ x *= two54;
+ GET_HIGH_WORD(hx,x);
+ k = ((hx&0x7ff00000)>>20) - 54;
+ if (n< -50000) return tiny*x; /*underflow*/
+ }
+ if (k==0x7ff) return x+x; /* NaN or Inf */
+ k = k+n;
+ if (k > 0x7fe) return huge*__copysign(huge,x); /* overflow */
+ if (k > 0) /* normal result */
+ {SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20)); return x;}
+ if (k <= -54)
+ if (n > 50000) /* in case integer overflow in n+k */
+ return huge*__copysign(huge,x); /*overflow*/
+ else return tiny*__copysign(tiny,x); /*underflow*/
+ k += 54; /* subnormal result */
+ SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20));
+ return x*twom54;
+}
+weak_alias (__scalbnl, scalbnl)
diff --git a/sysdeps/libm-ieee754/s_significandl.c b/sysdeps/libm-ieee754/s_significandl.c
new file mode 100644
index 0000000000..6339274b5a
--- /dev/null
+++ b/sysdeps/libm-ieee754/s_significandl.c
@@ -0,0 +1,39 @@
+/* s_significandl.c -- long double version of s_significand.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
+
+/*
+ * significandl(x) computes just
+ * scalbl(x, (double) -ilogbl(x)),
+ * for exercising the fraction-part(F) IEEE 754-1985 test vector.
+ */
+
+#include "math.h"
+#include "math_private.h"
+
+#ifdef __STDC__
+ long double __significandl(long double x)
+#else
+ long double __significandl(x)
+ long double x;
+#endif
+{
+ return __ieee754_scalbl(x,(double) -ilogbl(x));
+}
+weak_alias (__significandl, significandl)
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-09 00:03:13 +0000