Totally rework the math library, this time based on the MacOs X

math library (which is itself based on the math lib from FreeBSD).
 -Erik

1 files changed, 0 insertions, 192 deletions

diff --git a/libm/ldouble/exp10l.c b/libm/ldouble/exp10l.c
deleted file mode 100644
index b837571b4..000000000
--- a/libm/ldouble/exp10l.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*							exp10l.c
- *
- *	Base 10 exponential function, long double precision
- *      (Common antilogarithm)
- *
- *
- *
- * SYNOPSIS:
- *
- * long double x, y, exp10l()
- *
- * y = exp10l( x );
- *
- *
- *
- * DESCRIPTION:
- *
- * Returns 10 raised to the x power.
- *
- * Range reduction is accomplished by expressing the argument
- * as 10**x = 2**n 10**f, with |f| < 0.5 log10(2).
- * The Pade' form
- *
- *     1 + 2x P(x**2)/( Q(x**2) - P(x**2) )
- *
- * is used to approximate 10**f.
- *
- *
- *
- * ACCURACY:
- *
- *                      Relative error:
- * arithmetic   domain     # trials      peak         rms
- *    IEEE      +-4900      30000       1.0e-19     2.7e-20
- *
- * ERROR MESSAGES:
- *
- *   message         condition      value returned
- * exp10l underflow    x < -MAXL10        0.0
- * exp10l overflow     x > MAXL10       MAXNUM
- *
- * IEEE arithmetic: MAXL10 = 4932.0754489586679023819
- *
- */
-
-/*
-Cephes Math Library Release 2.2:  January, 1991
-Copyright 1984, 1991 by Stephen L. Moshier
-Direct inquiries to 30 Frost Street, Cambridge, MA 02140
-*/
-
-
-#include <math.h>
-
-#ifdef UNK
-static long double P[] = {
- 3.1341179396892496811523E1L,
- 4.5618283154904699073999E3L,
- 1.3433113468542797218610E5L,
- 7.6025447914440301593592E5L,
-};
-static long double Q[] = {
-/* 1.0000000000000000000000E0,*/
- 4.7705440288425157637739E2L,
- 2.9732606548049614870598E4L,
- 4.0843697951001026189583E5L,
- 6.6034865026929015925608E5L,
-};
-/*static long double LOG102 = 3.0102999566398119521373889e-1L;*/
-static long double LOG210 = 3.3219280948873623478703L;
-static long double LG102A = 3.01025390625e-1L;
-static long double LG102B = 4.6050389811952137388947e-6L;
-#endif
-
-
-#ifdef IBMPC
-static short P[] = {
-0x399a,0x7dc7,0xbc43,0xfaba,0x4003, XPD
-0xb526,0xdf32,0xa063,0x8e8e,0x400b, XPD
-0x18da,0xafa1,0xc89e,0x832e,0x4010, XPD
-0x503d,0x9352,0xe7aa,0xb99b,0x4012, XPD
-};
-static short Q[] = {
-/*0x0000,0x0000,0x0000,0x8000,0x3fff,*/
-0x947d,0x7855,0xf6ac,0xee86,0x4007, XPD
-0x18cf,0x7749,0x368d,0xe849,0x400d, XPD
-0x85be,0x2560,0x9f58,0xc76e,0x4011, XPD
-0x6d3c,0x80c5,0xca67,0xa137,0x4012, XPD
-};
-/*
-static short L102[] = {0xf799,0xfbcf,0x9a84,0x9a20,0x3ffd, XPD};
-#define LOG102 *(long double *)L102
-*/
-static short L210[] = {0x8afe,0xcd1b,0x784b,0xd49a,0x4000, XPD};
-#define LOG210 *(long double *)L210
-static short L102A[] = {0x0000,0x0000,0x0000,0x9a20,0x3ffd, XPD};
-#define LG102A *(long double *)L102A
-static short L102B[] = {0x8f89,0xf798,0xfbcf,0x9a84,0x3fed, XPD};
-#define LG102B *(long double *)L102B
-#endif
-
-#ifdef MIEEE
-static long P[] = {
-0x40030000,0xfababc43,0x7dc7399a,
-0x400b0000,0x8e8ea063,0xdf32b526,
-0x40100000,0x832ec89e,0xafa118da,
-0x40120000,0xb99be7aa,0x9352503d,
-};
-static long Q[] = {
-/* 0x3fff0000,0x80000000,0x00000000, */
-0x40070000,0xee86f6ac,0x7855947d,
-0x400d0000,0xe849368d,0x774918cf,
-0x40110000,0xc76e9f58,0x256085be,
-0x40120000,0xa137ca67,0x80c56d3c,
-};
-/*
-static long L102[] = {0x3ffd0000,0x9a209a84,0xfbcff799};
-#define LOG102 *(long double *)L102
-*/
-static long L210[] = {0x40000000,0xd49a784b,0xcd1b8afe};
-#define LOG210 *(long double *)L210
-static long L102A[] = {0x3ffd0000,0x9a200000,0x00000000};
-#define LG102A *(long double *)L102A
-static long L102B[] = {0x3fed0000,0x9a84fbcf,0xf7988f89};
-#define LG102B *(long double *)L102B
-#endif
-
-static long double MAXL10 = 4.9320754489586679023819e3L;
-extern long double MAXNUML;
-#ifdef ANSIPROT
-extern long double floorl ( long double );
-extern long double ldexpl ( long double, int );
-extern long double polevll ( long double, void *, int );
-extern long double p1evll ( long double, void *, int );
-extern int isnanl ( long double );
-#else
-long double floorl(), ldexpl(), polevll(), p1evll(), isnanl();
-#endif
-#ifdef INFINITIES
-extern long double INFINITYL;
-#endif
-
-long double exp10l(x)
-long double x;
-{
-long double px, xx;
-short n;
-
-#ifdef NANS
-if( isnanl(x) )
-	return(x);
-#endif
-if( x > MAXL10 )
-	{
-#ifdef INFINITIES
-	return( INFINITYL );
-#else
-	mtherr( "exp10l", OVERFLOW );
-	return( MAXNUML );
-#endif
-	}
-
-if( x < -MAXL10 )	/* Would like to use MINLOG but can't */
-	{
-#ifndef INFINITIES
-	mtherr( "exp10l", UNDERFLOW );
-#endif
-	return(0.0L);
-	}
-
-/* Express 10**x = 10**g 2**n
- *   = 10**g 10**( n log10(2) )
- *   = 10**( g + n log10(2) )
- */
-px = floorl( LOG210 * x + 0.5L );
-n = px;
-x -= px * LG102A;
-x -= px * LG102B;
-
-/* rational approximation for exponential
- * of the fractional part:
- * 10**x = 1 + 2x P(x**2)/( Q(x**2) - P(x**2) )
- */
-xx = x * x;
-px = x * polevll( xx, P, 3 );
-x =  px/( p1evll( xx, Q, 4 ) - px );
-x = 1.0L + ldexpl( x, 1 );
-
-/* multiply by power of 2 */
-x = ldexpl( x, n );
-return(x);
-}