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numeric.c: fix infinite loop

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* numeric.c (int_pow): fix infinite loop in the case of y equal 1
  and power of x does not overflow.
  [ruby-core:91734] [Bug #15651]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2019-03-11 01:37:16 +00:00
parent f399c2912b
commit e5f01dab9d
3 changed files with 19 additions and 0 deletions
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7
ext/-test-/integer/core_ext.c
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@ -20,10 +20,17 @@ rb_int_to_bignum(VALUE x)
return x;
}
static VALUE
positive_pow(VALUE x, VALUE y)
{
return rb_int_positive_pow(NUM2LONG(x), NUM2ULONG(y));
}
void
Init_core_ext(VALUE klass)
{
rb_define_method(rb_cInteger, "bignum?", int_bignum_p, 0);
rb_define_method(rb_cInteger, "fixnum?", int_fixnum_p, 0);
rb_define_method(rb_cInteger, "to_bignum", rb_int_to_bignum, 0);
rb_define_method(rb_cInteger, "positive_pow", positive_pow, 1);
}