[boost] [mp_math_v02] Bug in assignment operator

Subject: [boost] [mp_math_v02] Bug in assignment operator
From: Mikko Vainio (mikko.vainio_at_[hidden])
Date: 2008-10-03 02:57:27

Hi,

Referring to the mp_math_v02 library in the Vault,
the assignment operator of class mp_int<> does not quite behave the way
it should. The following program

#include <iostream>
#include <boost/mp_math/mp_int.hpp>
using namespace std;
int main( int argc, char* argv[] )
{
   boost::mp_math::mp_int<> a, b(-1);
   a = -1;
   cout << a << " == "  << b << endl;
   return 0;
}

produces the output
-4294967295 == -1

It seems that the constructor code behaves as expected.
I'm using gcc 4.3.0 on x86 Fedora 9.

Cheers,
Mikko