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| author | David S. Miller <davem@davemloft.net> | 2012-11-18 12:33:53 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-11-18 12:33:53 -0800 |
| commit | 05b227bdaea9a5f1faf08dad31221d8736f3659d (patch) | |
| tree | 06e947ef8dbcee671b979246fa994fba53081e4c /sysdeps/ieee754/flt-32/e_j0f.c | |
| parent | 786b0b67a3019e84988a6d5a79fd97801580a1cd (diff) | |
| download | glibc-05b227bdaea9a5f1faf08dad31221d8736f3659d.tar.gz glibc-05b227bdaea9a5f1faf08dad31221d8736f3659d.tar.xz glibc-05b227bdaea9a5f1faf08dad31221d8736f3659d.zip | |
Correct tinyness handling in long-double and float y0/y1.
With help from Joseph Myers. * sysdeps/ieee754/flt-32/e_j0f.c (__ieee754_y0f): Adjust tinyness cutoff to 2**-13. * sysdeps/ieee754/flt-32/e_j1f.c (__ieee754_y1f): Adjust tinyness cutoff to 2**-25. * sysdeps/ieee754/ldbl-128/e_j0l.c (U0): New constant. ( __ieee754_y0l): Avoid arithmetic underflow when 'x' is very small. * sysdeps/ieee754/ldbl-128/e_j1l.c (__ieee754_y1l): Likewise. * math/libm-test.inc (y0_test): New tests. (y1_test): New tests. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/x86_64/fpu/libm-test-ulps: Update. * sysdeps/sparc/fpu/libm-test-ulps: Update.
Diffstat (limited to 'sysdeps/ieee754/flt-32/e_j0f.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_j0f.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/ieee754/flt-32/e_j0f.c b/sysdeps/ieee754/flt-32/e_j0f.c index 0729cd04e0..c4cabd584a 100644 --- a/sysdeps/ieee754/flt-32/e_j0f.c +++ b/sysdeps/ieee754/flt-32/e_j0f.c @@ -138,7 +138,7 @@ __ieee754_y0f(float x) } return z; } - if(ix<=0x32000000) { /* x < 2**-27 */ + if(ix<=0x39800000) { /* x < 2**-13 */ return(u00 + tpi*__ieee754_logf(x)); } z = x*x; |