Date: Wed, 13 Dec 2017 18:38:02 +0000 (UTC) From: Dimitry Andric <dim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r326830 - in stable: 10/lib/msun/man 11/lib/msun/man Message-ID: <201712131838.vBDIc2OM007623@repo.freebsd.org>
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Author: dim Date: Wed Dec 13 18:38:02 2017 New Revision: 326830 URL: https://svnweb.freebsd.org/changeset/base/326830 Log: MFC r326748: Document the existence and precision of the remaining long double functions for which an imprecise stub implementation was added in r255294, namely powl(3) and tgammal(3). Submitted by: Steve Kargl MFC r326753: Correct r326748, indicating that tgammal(3) is mapped to tgamma(3), not to itself. Noticed by: jilles Modified: stable/10/lib/msun/man/exp.3 stable/10/lib/msun/man/lgamma.3 Directory Properties: stable/10/ (props changed) Changes in other areas also in this revision: Modified: stable/11/lib/msun/man/exp.3 stable/11/lib/msun/man/lgamma.3 Directory Properties: stable/11/ (props changed) Modified: stable/10/lib/msun/man/exp.3 ============================================================================== --- stable/10/lib/msun/man/exp.3 Wed Dec 13 17:11:57 2017 (r326829) +++ stable/10/lib/msun/man/exp.3 Wed Dec 13 18:38:02 2017 (r326830) @@ -28,7 +28,7 @@ .\" from: @(#)exp.3 6.12 (Berkeley) 7/31/91 .\" $FreeBSD$ .\" -.Dd November 9, 2015 +.Dd December 8, 2017 .Dt EXP 3 .Os .Sh NAME @@ -180,6 +180,15 @@ If 0**0 = 1, then then \*(Na**0 = 1 too because x**0 = 1 for all finite and infinite x, i.e., independently of x. .El +.Sh BUGS +To conform with newer C/C++ standards, a stub implementation for +.Nm powl +was committed to the math library, where +.Nm powl +is mapped to +.Nm pow . +Thus, the numerical accuracy is at most that of the 53-bit double +precision implementation. .Sh SEE ALSO .Xr fenv 3 , .Xr ldexp 3 , Modified: stable/10/lib/msun/man/lgamma.3 ============================================================================== --- stable/10/lib/msun/man/lgamma.3 Wed Dec 13 17:11:57 2017 (r326829) +++ stable/10/lib/msun/man/lgamma.3 Wed Dec 13 18:38:02 2017 (r326830) @@ -28,7 +28,7 @@ .\" from: @(#)lgamma.3 6.6 (Berkeley) 12/3/92 .\" $FreeBSD$ .\" -.Dd September 12, 2014 +.Dd December 8, 2017 .Dt LGAMMA 3 .Os .Sh NAME @@ -43,7 +43,8 @@ .Nm gammaf , .Nm gammaf_r , .Nm tgamma , -.Nm tgammaf +.Nm tgammaf , +.Nm tgammal , .Nd log gamma functions, gamma function .Sh LIBRARY .Lb libm @@ -76,6 +77,8 @@ .Fn tgamma "double x" .Ft float .Fn tgammaf "float x" +.Ft "long double" +.Fn tgammal "long double x" .Sh DESCRIPTION .Fn lgamma x , .Fn lgammaf x , @@ -106,9 +109,10 @@ and but the caller must provide an integer to store the sign of \(*G(x). .Pp The -.Fn tgamma x +.Fn tgamma x , +.Fn tgammaf x , and -.Fn tgammaf x +.Fn tgammal x functions return \(*G(x), with no effect on .Fa signgam . .Pp @@ -167,6 +171,15 @@ non-positive integers. For large non-integer negative values, .Fn tgamma will underflow. +.Sh BUGS +To conform with newer C/C++ standards, a stub implementation for +.Nm tgammal +was committed to the math library, where +.Nm tgammal +is mapped to +.Nm tgamma . +Thus, the numerical accuracy is at most that of the 53-bit double +precision implementation. .Sh SEE ALSO .Xr math 3 .Sh STANDARDS @@ -175,8 +188,9 @@ The .Fn lgammaf , .Fn lgammal , .Fn tgamma , +.Fn tgammaf , and -.Fn tgammaf +.Fn tgammal functions are expected to conform to .St -isoC-99 . .Sh HISTORY
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