diff options
Diffstat (limited to 'lib/libm/noieee_src')
| -rw-r--r-- | lib/libm/noieee_src/n_exp__E.c | 4 | ||||
| -rw-r--r-- | lib/libm/noieee_src/n_expm1.c | 6 | ||||
| -rw-r--r-- | lib/libm/noieee_src/n_lgamma.c | 18 | ||||
| -rw-r--r-- | lib/libm/noieee_src/n_support.c | 6 |
4 files changed, 19 insertions, 15 deletions
diff --git a/lib/libm/noieee_src/n_exp__E.c b/lib/libm/noieee_src/n_exp__E.c index 9fd13ada83a..5f7e799bff7 100644 --- a/lib/libm/noieee_src/n_exp__E.c +++ b/lib/libm/noieee_src/n_exp__E.c @@ -1,4 +1,4 @@ -/* $OpenBSD: n_exp__E.c,v 1.7 2008/07/17 15:36:28 martynas Exp $ */ +/* $OpenBSD: n_exp__E.c,v 1.8 2008/07/18 13:08:58 martynas Exp $ */ /* $NetBSD: n_exp__E.c,v 1.1 1995/10/10 23:36:45 ragge Exp $ */ /* * Copyright (c) 1985, 1993 @@ -136,4 +136,6 @@ __exp__E(double x, double c) else return(copysign(zero,x)); } + + /* NOTREACHED */ } diff --git a/lib/libm/noieee_src/n_expm1.c b/lib/libm/noieee_src/n_expm1.c index 082aa608541..1448bb00961 100644 --- a/lib/libm/noieee_src/n_expm1.c +++ b/lib/libm/noieee_src/n_expm1.c @@ -1,4 +1,4 @@ -/* $OpenBSD: n_expm1.c,v 1.8 2008/06/21 08:26:19 martynas Exp $ */ +/* $OpenBSD: n_expm1.c,v 1.9 2008/07/18 13:08:58 martynas Exp $ */ /* $NetBSD: n_expm1.c,v 1.1 1995/10/10 23:36:46 ragge Exp $ */ /* * Copyright (c) 1985, 1993 @@ -107,7 +107,7 @@ ic(invln2, 1.4426950408889633870E0, 0, 1.71547652B82FE) double expm1(double x) { - const static double one=1.0, half=1.0/2.0; + const static double one=1.0, half=1.0/2.0, tiny=1e-300; double z,hi,lo,c; int k; #if defined(__vax__) @@ -152,7 +152,7 @@ expm1(double x) else /* expm1(-big#) rounded to -1 (inexact) */ if(finite(x)) - { ln2hi+ln2lo; return(-one);} + return(tiny-one); /* expm1(-INF) is -1 */ else return(-one); diff --git a/lib/libm/noieee_src/n_lgamma.c b/lib/libm/noieee_src/n_lgamma.c index 1cf10a7c0d2..1fe70c44cc2 100644 --- a/lib/libm/noieee_src/n_lgamma.c +++ b/lib/libm/noieee_src/n_lgamma.c @@ -1,4 +1,4 @@ -/* $OpenBSD: n_lgamma.c,v 1.7 2008/07/16 15:25:51 martynas Exp $ */ +/* $OpenBSD: n_lgamma.c,v 1.8 2008/07/18 13:08:58 martynas Exp $ */ /*- * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. @@ -243,15 +243,15 @@ CONTINUE: t = .5*t*t; z = 1.0; switch (x_int) { - case 6: z = (y + 5); - case 5: z *= (y + 4); - case 4: z *= (y + 3); + case 6: z = (y + 5); /* FALLTHROUGH */ + case 5: z *= (y + 4); /* FALLTHROUGH */ + case 4: z *= (y + 3); /* FALLTHROUGH */ case 3: z *= (y + 2); rr = __log__D(z); rr.b += a0_lo; rr.a += a0_hi; return(((r+rr.b)+t+rr.a)); case 2: return(((r+a0_lo)+t)+a0_hi); - case 0: r -= log1p(x); + case 0: r -= log1p(x); /* FALLTHROUGH */ default: rr = __log__D(x); rr.a -= a0_hi; rr.b -= a0_lo; return(((r - rr.b) + t) - rr.a); @@ -268,10 +268,10 @@ CONTINUE: q = hi*t; z = 1.0; switch (x_int) { - case 6: z = (y + 5); - case 5: z *= (y + 4); - case 4: z *= (y + 3); - case 3: z *= (y + 2); + case 6: z = (y + 5); /* FALLTHROUGH */ + case 5: z *= (y + 4); /* FALLTHROUGH */ + case 4: z *= (y + 3); /* FALLTHROUGH */ + case 3: z *= (y + 2); /* FALLTHROUGH */ rr = __log__D(z); r += rr.b; r += q; return(rr.a + r); diff --git a/lib/libm/noieee_src/n_support.c b/lib/libm/noieee_src/n_support.c index 84b2547cd20..c0aa3dc6573 100644 --- a/lib/libm/noieee_src/n_support.c +++ b/lib/libm/noieee_src/n_support.c @@ -1,4 +1,4 @@ -/* $OpenBSD: n_support.c,v 1.13 2008/07/17 15:36:28 martynas Exp $ */ +/* $OpenBSD: n_support.c,v 1.14 2008/07/18 13:08:58 martynas Exp $ */ /* $NetBSD: n_support.c,v 1.1 1995/10/10 23:37:06 ragge Exp $ */ /* * Copyright (c) 1985, 1993 @@ -324,7 +324,8 @@ sqrt(double x) /* generate the last bit and determine the final rounding */ r/=2; x *= 4; - if(x==zero) goto end; 100+r; /* trigger inexact flag */ + if(x==zero) goto end; + if (100+r >= 100) { /* trigger inexact flag */ if(s<x) { q+=r; x -=s; s += 2; s *= 2; x *= 4; t = (x-s)-5; @@ -337,6 +338,7 @@ sqrt(double x) b=1.0+3*r/4; if(b==1.0) goto end; b=1.0+r/4; if(b>1.0) t=1; if(t>=0) q+=r; } + } end: return(scalbn(q,n)); } |