Date: Mon, 1 Sep 2014 16:24:25 +0000 (UTC) From: Steve Kargl <kargl@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r270932 - head/lib/msun/src Message-ID: <201409011624.s81GOPdM019854@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: kargl Date: Mon Sep 1 16:24:25 2014 New Revision: 270932 URL: http://svnweb.freebsd.org/changeset/base/270932 Log: Fix a tab that somehow became 8 spaces. Remove parentheses in a return statement to be consistent with the rest of the file. Rename sin_pi() in the float version to sin_pif(). Remove large comment that precedes sin_pif(). The comment duplicates a comment in e_lgamma_r.c where the algorithm is documented. Requested by: bde Modified: head/lib/msun/src/e_lgamma_r.c head/lib/msun/src/e_lgammaf_r.c Modified: head/lib/msun/src/e_lgamma_r.c ============================================================================== --- head/lib/msun/src/e_lgamma_r.c Mon Sep 1 16:12:29 2014 (r270931) +++ head/lib/msun/src/e_lgamma_r.c Mon Sep 1 16:24:25 2014 (r270932) @@ -171,9 +171,9 @@ sin_pi(double x) y = -x; vz = y+0x1p52; /* depend on 0 <= y < 0x1p52 */ - z = vz-0x1p52; /* rint(y) for the above range */ + z = vz-0x1p52; /* rint(y) for the above range */ if (z == y) - return (zero); + return zero; vz = y+0x1p50; GET_LOW_WORD(n,vz); /* bits for rounded y (units 0.25) */ Modified: head/lib/msun/src/e_lgammaf_r.c ============================================================================== --- head/lib/msun/src/e_lgammaf_r.c Mon Sep 1 16:12:29 2014 (r270931) +++ head/lib/msun/src/e_lgammaf_r.c Mon Sep 1 16:24:25 2014 (r270932) @@ -89,13 +89,8 @@ w6 = -1.6309292987e-03; /* 0xbad5c4e8 * static const float zero= 0.0000000000e+00; -/* - * Compute sin(pi*x) without actually doing the pi*x multiplication. - * sin_pi(x) is only called for x < 0 and |x| < 2**(p-1) where p is - * the precision of x. - */ static float -sin_pi(float x) +sin_pif(float x) { volatile float vz; float y,z; @@ -106,7 +101,7 @@ sin_pi(float x) vz = y+0x1p23F; /* depend on 0 <= y < 0x1p23 */ z = vz-0x1p23F; /* rintf(y) for the above range */ if (z == y) - return (zero); + return zero; vz = y+0x1p21F; GET_FLOAT_WORD(n,vz); /* bits for rounded y (units 0.25) */ @@ -155,7 +150,7 @@ __ieee754_lgammaf_r(float x, int *signga if(hx<0) { if(ix>=0x4b000000) /* |x|>=2**23, must be -integer */ return one/zero; - t = sin_pi(x); + t = sin_pif(x); if(t==zero) return one/zero; /* -integer */ nadj = __ieee754_logf(pi/fabsf(t*x)); if(t<zero) *signgamp = -1;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201409011624.s81GOPdM019854>