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Opened 4 years ago

Closed 4 years ago

#8670 closed Bugs (fixed)

Bug in handling 0 mod n

Reported by: filipedlarcanjo@… Owned by: John Maddock
Milestone: To Be Determined Component: multiprecision
Version: Boost 1.53.0 Severity: Problem
Keywords: Cc:

Description

The following code produces as outputs the numbers 5933326056 and 0.

#include <iostream>
#include <boost/multiprecision/cpp_int.hpp>

using namespace std;

int main()
{
  typedef boost::multiprecision::checked_int1024_t bigint;
  bigint n = 5933326056;
  bigint z = 0;
  cout << (z % n) << endl;
  cout << (0 % 5933326056) << endl;
}

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Change History (2)

comment:1 Changed 4 years ago by John Maddock

(In [84716]) Fix for 0 % N giving wrong answer in cpp_int. Refs #8670.

comment:2 Changed 4 years ago by John Maddock

Resolution: fixed
Status: newclosed

(In [84799]) Merge fixes for from Trunk. Fixes #8692. Fixes #8670. Fixes #8667.

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