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7 commits

Author SHA1 Message Date
nobu
51b6bfb011 * missing/*.c: include missing.h 
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28771 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
 2010-07-28 08:12:01 +00:00
akr
e7a660a3cf tgamma and lgamma_r is not a error function. 
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17164 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
 2008-06-15 02:18:06 +00:00
akr
d1cd806372 * missing/lgamma_r.c (loggamma): return 0 for 1 and 2. 
* test/ruby/test_math.rb: accept errors by functions under missing/.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
 2008-03-06 05:53:03 +00:00
akr
4c351aea17 * missing/xlgamma_r.c (lgamma_r): return HUGE_VAL for non-positive 
integers.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15411 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
 2008-02-09 02:10:57 +00:00
akr
185849a664 * missing/lgamma_r.c (lgamma_r): use smaller argument for sin function. 
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15407 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
 2008-02-08 14:53:09 +00:00
usa
4cd86dbe9f * missing/lgamma_r.c (lgamma_r): some compilers don't permit dividing 
by literal 0.0. use const variable instead.

	* {bcc32,win32,wince}/Makefile.sub (MISSING): add lgamma_r.obj and
	  tgamma.obj.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
 2008-02-07 02:14:54 +00:00
akr
14373fc4db * math.c (math_gamma): new method Math.gamma. 
(math_lgamma): new method Math.lgamma.

* include/ruby/missing.h (tgamma): declared unless HAVE_TGAMMA.
  (lgamma_r): declared unless HAVE_LGAMMA_R.

* configure.in (tgamma): check for replacement funtions.
  (lgamma_r): ditto.

* missing/tgamma.c: new file.  based on gamma.c from
  "C-gengo niyoru saishin algorithm jiten" (New Algorithm handbook
  in C language) (Gijyutsu hyouron sha, Tokyo, 1991)
  by Haruhiko Okumura.

* missing/lgamma_r.c: ditto.

* LEGAL (missing/tgamma.c): describe as public domain.
  (missing/lgamma_r.c): ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15388 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
 2008-02-07 01:43:43 +00:00