id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12989	Bug in multiprecision shift left	Paweł Bylica <chfast@…>	John Maddock	"In cpp_int this test fails:

```
using uint256 = number<cpp_int_backend<256, 256, unsigned_magnitude, unchecked, void>>;
BOOST_CHECK_EQUAL(uint256(3) << 255, uint256(1) << 255);
```"	Bugs	closed	To Be Determined	multiprecision	Boost 1.63.0	Problem	duplicate