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merge revision(s) 61517: [Backport #14259]

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numeric.c: Fix Integer#pow with a large Fixnum modulo

	* numeric.c: Fix Integer#pow with a large Fixnum modulo
	  [Bug #14259] [ruby-core:84562]

	* test/ruby/test_numeric.rb: add assertions for reproducing this bug.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@61629 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2018-01-05 20:40:12 +00:00
parent 311d499f5e
commit a697c8b61b
3 changed files with 9 additions and 2 deletions
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4
bignum.c
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@ -7016,7 +7016,9 @@ int_pow_tmp2(VALUE x, VALUE y, long mm, int nega_flg)
xx = MUL_MODULO(xx, xx, m);
}
#ifndef DLONG
#ifdef DLONG
tmp = tmp2;
#else
tmp = FIX2LONG(tmp2);
#endif
if (nega_flg && tmp) {