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| author | Ulrich Drepper <drepper@gmail.com> | 2011-10-16 20:58:17 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-10-16 20:58:17 -0400 |
| commit | ad0f5cad15f1c76faf3843b3e189dead2c05cfcc (patch) | |
| tree | d3ed2cb9df7536e17a275d08bdb09b2840fee5e5 /sysdeps/ieee754/flt-32/s_rintf.c | |
| parent | aac13307d6879af0f46e6b26895244d063c50db5 (diff) | |
| download | glibc-ad0f5cad15f1c76faf3843b3e189dead2c05cfcc.tar.gz glibc-ad0f5cad15f1c76faf3843b3e189dead2c05cfcc.tar.xz glibc-ad0f5cad15f1c76faf3843b3e189dead2c05cfcc.zip | |
Use rounds{s,d} for x86 rint, ceil, floor
Diffstat (limited to 'sysdeps/ieee754/flt-32/s_rintf.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_rintf.c | 28 |
1 files changed, 9 insertions, 19 deletions
diff --git a/sysdeps/ieee754/flt-32/s_rintf.c b/sysdeps/ieee754/flt-32/s_rintf.c index 4e5b409b29..9ea9b6fc4f 100644 --- a/sysdeps/ieee754/flt-32/s_rintf.c +++ b/sysdeps/ieee754/flt-32/s_rintf.c @@ -8,34 +8,22 @@ * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice + * software is freely granted, provided that this notice * is preserved. * ==================================================== */ -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: s_rintf.c,v 1.4 1995/05/10 20:48:06 jtc Exp $"; -#endif - #include "math.h" #include "math_private.h" -#ifdef __STDC__ static const float -#else -static float -#endif TWO23[2]={ 8.3886080000e+06, /* 0x4b000000 */ -8.3886080000e+06, /* 0xcb000000 */ }; -#ifdef __STDC__ - float __rintf(float x) -#else - float __rintf(x) - float x; -#endif +float +__rintf(float x) { int32_t i0,j0,sx; u_int32_t i,i1; @@ -44,17 +32,17 @@ TWO23[2]={ sx = (i0>>31)&1; j0 = ((i0>>23)&0xff)-0x7f; if(j0<23) { - if(j0<0) { + if(j0<0) { if((i0&0x7fffffff)==0) return x; i1 = (i0&0x07fffff); i0 &= 0xfff00000; i0 |= ((i1|-i1)>>9)&0x400000; SET_FLOAT_WORD(x,i0); - w = TWO23[sx]+x; - t = w-TWO23[sx]; + w = TWO23[sx]+x; + t = w-TWO23[sx]; GET_FLOAT_WORD(i0,t); SET_FLOAT_WORD(t,(i0&0x7fffffff)|(sx<<31)); - return t; + return t; } else { i = (0x007fffff)>>j0; if((i0&i)==0) return x; /* x is integral */ @@ -69,4 +57,6 @@ TWO23[2]={ w = TWO23[sx]+x; return w-TWO23[sx]; } +#ifndef __rintf weak_alias (__rintf, rintf) +#endif |