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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-03-14 23:34:39 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-03-14 23:34:39 +0000 |
commit | 573772ab5b143eae7130c2dd3bc9f6f221d0c742 (patch) | |
tree | b5787349417ad232261ff18a8224f2c56002d578 /math.c | |
parent | 3f16e7dd7ff9ad61dd58f12a5617bd8717c64912 (diff) | |
download | ruby-573772ab5b143eae7130c2dd3bc9f6f221d0c742.tar.gz |
math.c: more robust
* math.c (math_gamma): make more robust against addition/removal.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49972 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'math.c')
-rw-r--r-- | math.c | 5 |
1 files changed, 2 insertions, 3 deletions
@@ -836,12 +836,10 @@ mingw_tgamma(const double d) * */ -#define NFACT_TABLE 23 - static VALUE math_gamma(VALUE obj, VALUE x) { - static const double fact_table[NFACT_TABLE] = { + static const double fact_table[] = { /* fact(0) */ 1.0, /* fact(1) */ 1.0, /* fact(2) */ 2.0, @@ -869,6 +867,7 @@ math_gamma(VALUE obj, VALUE x) * impossible to represent exactly in IEEE 754 double which have * 53bit mantissa. */ }; + enum {NFACT_TABLE = numberof(fact_table)}; double d; d = Get_Double(x); /* check for domain error */ |