diff options
author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-08-27 14:11:19 +0000 |
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committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-08-27 14:11:19 +0000 |
commit | ba757763464cb3cd344454bb8d8e062ca92d2a3d (patch) | |
tree | b7a832a8b1049393093d8f340952e2d6b32b48b8 /array.c | |
parent | 95abe79e04c3238ea2dde68ea1ab567e354aad21 (diff) |
merge revision(s) 64014: [Backport #14926]
fix sum on infinity
* array.c (rb_ary_sum): consider non-finite floats.
[ruby-core:88024] [Bug #14926]
* enum.c (sum_iter): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@64562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'array.c')
-rw-r--r-- | array.c | 14 |
1 files changed, 14 insertions, 0 deletions
@@ -5825,6 +5825,20 @@ rb_ary_sum(int argc, VALUE *argv, VALUE ary) else goto not_float; + if (isnan(f)) continue; + if (isnan(x)) { + f = x; + continue; + } + if (isinf(x)) { + if (isinf(f) && signbit(x) != signbit(f)) + f = NAN; + else + f = x; + continue; + } + if (isinf(f)) continue; + t = f + x; if (fabs(f) >= fabs(x)) c += ((f - t) + x); |