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-rw-r--r--array.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/array.c b/array.c
index d9d6bdbf87..182046856c 100644
--- a/array.c
+++ b/array.c
@@ -5734,7 +5734,7 @@ rb_ary_dig(int argc, VALUE *argv, VALUE self)
}
static inline VALUE
-finish_exact_sum(long n, VALUE r, VALUE v)
+finish_exact_sum(long n, VALUE r, VALUE v, int z)
{
if (n != 0)
v = rb_fix_plus(LONG2FIX(n), v);
@@ -5747,6 +5747,9 @@ finish_exact_sum(long n, VALUE r, VALUE v)
else
v = rb_rational_plus(r, v);
}
+ else if (!n && z) {
+ v = rb_fix_plus(LONG2FIX(0), v);
+ }
return v;
}
@@ -5831,11 +5834,11 @@ rb_ary_sum(int argc, VALUE *argv, VALUE ary)
else
goto not_exact;
}
- v = finish_exact_sum(n, r, v);
+ v = finish_exact_sum(n, r, v, argc!=0);
return v;
not_exact:
- v = finish_exact_sum(n, r, v);
+ v = finish_exact_sum(n, r, v, i!=0);
if (RB_FLOAT_TYPE_P(e)) {
/*