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| author | Adhemerval Zanella <azanella@linux.vnet.ibm.com> | 2012-04-11 16:30:13 -0300 |
|---|---|---|
| committer | Andreas Jaeger <aj@suse.de> | 2012-04-17 22:12:53 +0200 |
| commit | 76da7265320010c7a273ed99f53938c0f32d5fad (patch) | |
| tree | f094871a5f38652d2d320a11423fee602a8746e6 /sysdeps/ieee754/ldbl-128ibm | |
| parent | 0396e69dbefb3630651d93e0a7526c4326a071bb (diff) | |
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Fix ilogb exception and errno (bug 6794)
[BZ #6794]
Following Joseph comments about bug 6794, here is a proposed fix. It turned out
to be a large fix mainly because I had to move some file along to follow libm
files/names conventions.
Basically I have added wrappers (w_ilogb.c, w_ilogbf.c, w_ilogbl.c) that now calls
the symbol '__ieee754_ilogb'. The wrappers checks for '__ieee754_ilogb' output and
set the errno and raise exceptions as expected.
The '__ieee754_ilogb' is implemented in sysdeps. I have moved the 's_ilogb[f|l]' files
to e_ilogb[f|l] and renamed the '__ilogb[f|l]' to '__ieee754_ilogb[f|l]'.
I also found out a bug in i386 and x86-64 assembly coded ilogb implementation where
it raises a FE_DIVBYZERO when argument is '0.0'. I corrected this issue as well.
Finally I added the errno and FE_INVALID tests for 0.0, NaN and +-InF argument. Tested
on i386, x86-64, ppc32 and ppc64.
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128ibm/e_ilogbl.c (renamed from sysdeps/ieee754/ldbl-128ibm/s_ilogbl.c) | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_ilogbl.c b/sysdeps/ieee754/ldbl-128ibm/e_ilogbl.c index a6f0e1e678..55f87ed422 100644 --- a/sysdeps/ieee754/ldbl-128ibm/s_ilogbl.c +++ b/sysdeps/ieee754/ldbl-128ibm/e_ilogbl.c @@ -29,7 +29,7 @@ static char rcsid[] = "$NetBSD: $"; #include <math_private.h> #include <math_ldbl_opt.h> -int __ilogbl(long double x) +int __ieee754_ilogbl(long double x) { int64_t hx,lx; int ix; @@ -55,4 +55,3 @@ int __ilogbl(long double x) } return FP_ILOGBNAN; } -long_double_symbol (libm, __ilogbl, ilogbl); |