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Diffstat (limited to 'numeric.c')
-rw-r--r--numeric.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/numeric.c b/numeric.c
index ded844a4cbd..843716cdbbf 100644
--- a/numeric.c
+++ b/numeric.c
@@ -2204,6 +2204,7 @@ static VALUE
fix_pow(x, y)
VALUE x, y;
{
+ static const double zero = 0.0;
long a = FIX2LONG(x);
if (FIXNUM_P(y)) {
@@ -2213,7 +2214,10 @@ fix_pow(x, y)
if (b == 0) return INT2FIX(1);
if (b == 1) return x;
a = FIX2LONG(x);
- if (a == 0) return INT2FIX(0);
+ if (a == 0) {
+ if (b > 0) return INT2FIX(0);
+ return rb_float_new(1.0 / zero);
+ }
if (a == 1) return INT2FIX(1);
if (a == -1) {
if (b % 2 == 0)
@@ -2237,7 +2241,9 @@ fix_pow(x, y)
x = rb_int2big(FIX2LONG(x));
return rb_big_pow(x, y);
case T_FLOAT:
- if (a == 0) return rb_float_new(0.0);
+ if (a == 0) {
+ return rb_float_new(RFLOAT(y)->value < 0 ? (1.0 / zero) : 0.0);
+ }
if (a == 1) return rb_float_new(1.0);
return rb_float_new(pow((double)a, RFLOAT(y)->value));
default: