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| author | Ulrich Drepper <drepper@redhat.com> | 2004-11-21 19:58:34 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2004-11-21 19:58:34 +0000 |
| commit | 52495f29a2e8519da83cbda0c21ad95405364705 (patch) | |
| tree | 1ece157b55f4df330c2cbdc2b6cb276c57959476 /sysdeps/generic | |
| parent | 250ecb48d516b08be7d0fdba0a7ba5146e148a77 (diff) | |
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[BZ #552]
Update.
2004-11-20 Jakub Jelinek <jakub@redhat.com>
* sysdeps/ieee754/k_standard.c: Document code 50.
(__kernel_standard) <case 50>: Avoid raising div-by-zero
exception again.
2004-11-19 H.J. Lu <hongjiu.lu@intel.com>
[BZ #552]
* math/libm-test.inc (tgamma_test): Update tgamma (0) and
tgamma (-0).
* sysdeps/generic/w_tgamma.c (__tgamma): Properly handle |x| == 0.
* sysdeps/generic/w_tgammaf.c (__tgammaf): Likewise.
* sysdeps/generic/w_tgammal.c (__tgammal): Likewise.
* sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise.
* sysdeps/ieee754/flt-32/e_gammaf_r.c: Likewise.
* sysdeps/ieee754/ldbl-128/e_gammal_r.c: Likewise.
* sysdeps/ieee754/ldbl-96/e_gammal_r.c: Likewise.
* sysdeps/ieee754/k_standard.c (__kernel_standard): Handle
tgamma (0) and tgamma (-0).
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/w_tgamma.c | 6 | ||||
| -rw-r--r-- | sysdeps/generic/w_tgammaf.c | 5 | ||||
| -rw-r--r-- | sysdeps/generic/w_tgammal.c | 6 |
3 files changed, 12 insertions, 5 deletions
diff --git a/sysdeps/generic/w_tgamma.c b/sysdeps/generic/w_tgamma.c index 2adbc2e14d..6e34b62be4 100644 --- a/sysdeps/generic/w_tgamma.c +++ b/sysdeps/generic/w_tgamma.c @@ -39,8 +39,10 @@ static char rcsid[] = "$NetBSD: w_gamma.c,v 1.7 1995/11/20 22:06:43 jtc Exp $"; if(_LIB_VERSION == _IEEE_) return y; if(!__finite(y)&&__finite(x)) { - if(__floor(x)==x&&x<=0.0) - return __kernel_standard(x,x,41); /* tgamma pole */ + if (x == 0.0) + return __kernel_standard(x,x,50); /* tgamma pole */ + else if(__floor(x)==x&&x<0.0) + return __kernel_standard(x,x,41); /* tgamma domain */ else return __kernel_standard(x,x,40); /* tgamma overflow */ } diff --git a/sysdeps/generic/w_tgammaf.c b/sysdeps/generic/w_tgammaf.c index 152f4be156..e7b0d87ab5 100644 --- a/sysdeps/generic/w_tgammaf.c +++ b/sysdeps/generic/w_tgammaf.c @@ -37,8 +37,11 @@ static char rcsid[] = "$NetBSD: w_gammaf.c,v 1.4 1995/11/20 22:06:48 jtc Exp $"; if(_LIB_VERSION == _IEEE_) return y; if(!__finitef(y)&&__finitef(x)) { - if(__floorf(x)==x&&x<=(float)0.0) + if (x == (float)0.0) /* tgammaf pole */ + return (float)__kernel_standard((double)x,(double)x,150); + else if(__floorf(x)==x&&x<(float)0.0) + /* tgammaf domain */ return (float)__kernel_standard((double)x,(double)x,141); else /* tgammaf overflow */ diff --git a/sysdeps/generic/w_tgammal.c b/sysdeps/generic/w_tgammal.c index 9efce2bb95..793fa17ac1 100644 --- a/sysdeps/generic/w_tgammal.c +++ b/sysdeps/generic/w_tgammal.c @@ -42,8 +42,10 @@ static char rcsid[] = "$NetBSD: $"; if(_LIB_VERSION == _IEEE_) return y; if(!__finitel(y)&&__finitel(x)) { - if(__floorl(x)==x&&x<=0.0) - return __kernel_standard(x,x,241); /* tgamma pole */ + if(x==0.0) + return __kernel_standard(x,x,250); /* tgamma pole */ + else if(__floorl(x)==x&&x<0.0) + return __kernel_standard(x,x,241); /* tgamma domain */ else return __kernel_standard(x,x,240); /* tgamma overflow */ } |