From 2c1936cf87184470308b6bf3f0fe70f1a99936af Mon Sep 17 00:00:00 2001 From: naruse Date: Tue, 22 Mar 2011 01:08:49 +0000 Subject: * numeric.c (flo_round): use pow instead of while-loop. fixes #4510 patched by Alex Young [ruby-core:35526] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31146 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- ChangeLog | 5 +++++ numeric.c | 7 ++----- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/ChangeLog b/ChangeLog index 68bdfc76b2..e12e6138c3 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +Tue Mar 22 09:38:19 2011 NARUSE, Yui + + * numeric.c (flo_round): use pow instead of while-loop. fixes #4510 + patched by Alex Young [ruby-core:35526] + Tue Mar 22 06:47:46 2011 NARUSE, Yui * ext/date/date_strftime.c (date_strftime_wo_timespec): diff --git a/numeric.c b/numeric.c index a2fab9b31b..0f316fad93 100644 --- a/numeric.c +++ b/numeric.c @@ -1479,17 +1479,14 @@ flo_round(int argc, VALUE *argv, VALUE num) { VALUE nd; double number, f; - int ndigits = 0, i; + int ndigits = 0; long val; if (argc > 0 && rb_scan_args(argc, argv, "01", &nd) == 1) { ndigits = NUM2INT(nd); } number = RFLOAT_VALUE(num); - f = 1.0; - i = abs(ndigits); - while (--i >= 0) - f = f*10.0; + f = pow(10, abs(ndigits)); if (isinf(f)) { if (ndigits < 0) number = 0; -- cgit v1.2.3