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| author | Joseph Myers <joseph@codesourcery.com> | 2012-02-22 13:03:40 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2012-02-22 13:03:40 +0000 |
| commit | 6cbeae4719aeb3edb6143fe5dd6d2a5ab45c0248 (patch) | |
| tree | 2668b282c3712aeab13fd3691bd0a5d9e16817fa /sysdeps/ieee754 | |
| parent | fe45ce09f366f2260aef528d37ae35070b3a2a36 (diff) | |
| download | glibc-6cbeae4719aeb3edb6143fe5dd6d2a5ab45c0248.zip glibc-6cbeae4719aeb3edb6143fe5dd6d2a5ab45c0248.tar.gz glibc-6cbeae4719aeb3edb6143fe5dd6d2a5ab45c0248.tar.bz2 | |
Fix nearbyintf rounding.
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_nearbyintf.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/sysdeps/ieee754/flt-32/s_nearbyintf.c b/sysdeps/ieee754/flt-32/s_nearbyintf.c index 04ef9ab..a6d602b 100644 --- a/sysdeps/ieee754/flt-32/s_nearbyintf.c +++ b/sysdeps/ieee754/flt-32/s_nearbyintf.c @@ -30,18 +30,12 @@ __nearbyintf(float x) { fenv_t env; int32_t i0,j0,sx; - u_int32_t i,i1; float w,t; GET_FLOAT_WORD(i0,x); sx = (i0>>31)&1; j0 = ((i0>>23)&0xff)-0x7f; if(j0<23) { if(j0<0) { - if((i0&0x7fffffff)==0) return x; - i1 = (i0&0x07fffff); - i0 &= 0xfff00000; - i0 |= ((i1|-i1)>>9)&0x400000; - SET_FLOAT_WORD(x,i0); libc_feholdexceptf (&env); w = TWO23[sx]+x; t = w-TWO23[sx]; @@ -49,17 +43,11 @@ __nearbyintf(float x) GET_FLOAT_WORD(i0,t); SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31)); return t; - } else { - i = (0x007fffff)>>j0; - if((i0&i)==0) return x; /* x is integral */ - i>>=1; - if((i0&i)!=0) i0 = (i0&(~i))|((0x100000)>>j0); } } else { if(__builtin_expect(j0==0x80, 0)) return x+x; /* inf or NaN */ else return x; /* x is integral */ } - SET_FLOAT_WORD(x,i0); libc_feholdexceptf (&env); w = TWO23[sx]+x; t = w-TWO23[sx]; |