diff options
author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-11-24 18:40:07 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-11-24 18:40:07 +0000 |
commit | 012fee947633cf88ebeb6158ee140d1e2d051db0 (patch) | |
tree | cd47eaf092a882206ef46ff42a348377a2661cda /numeric.c | |
parent | 4671724697312a86e9379eb253c062bcc2022e7e (diff) | |
download | ruby-012fee947633cf88ebeb6158ee140d1e2d051db0.tar.gz |
* numeric.c (num_step): treat infinite step specially.
[ruby-dev:37157] fix: #781.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20348 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'numeric.c')
-rw-r--r-- | numeric.c | 13 |
1 files changed, 9 insertions, 4 deletions
@@ -1503,10 +1503,15 @@ num_step(int argc, VALUE *argv, VALUE from) double err = (fabs(beg) + fabs(end) + fabs(end-beg)) / fabs(unit) * epsilon; long i; - if (err>0.5) err=0.5; - n = floor(n + err) + 1; - for (i=0; i<n; i++) { - rb_yield(DBL2NUM(i*unit+beg)); + if (isinf(unit)) { + if (unit > 0) rb_yield(DBL2NUM(beg)); + } + else { + if (err>0.5) err=0.5; + n = floor(n + err) + 1; + for (i=0; i<n; i++) { + rb_yield(DBL2NUM(i*unit+beg)); + } } } else { |