Subject: [boost] [rational] Inadvertent construction from double
From: Andrzej Krzemienski (akrzemi1_at_[hidden])
Date: 2014-07-25 07:38:51
Hi,
I have encountered something I consider a bug in boost::rational's
interface. Its documentation discusses in detail why conversion from double
is not supported, but the following code works fine:
#include <iostream>
#include <boost/rational.hpp>
int main()
{
double d = 31.82;
boost::rational<int> r = d;
std::cout << r << std::endl;
}
With the following result:
31/1
It just discards the fractional part. Such conversion is really confusing
an I claim should be explicitly deleted.
Regards,
&rzej