Re: [boost] Name and Namespace forPotential BoostExtended Floating-Point

Subject: Re: [boost] Name and Namespace forPotential BoostExtended Floating-Point
From: Christopher Kormanyos (e_float_at_[hidden])
Date: 2011-09-04 14:19:02

Christopher Kormanyos wrote:


>> boost::multiprecision::mp_float will behave like a POD.

Dave Abrahams wrote:

> That would mean you could copy it with memcpy.  But that's not what you
> intend to say, is it?

No, just normal stuff such as instances of boost::multiprecision::mp_float
constructed and copied from other PODs like a regular float, double or long double.

For example:

boost::multiprecision::mp_float x = 4.4;
boost::multiprecision::mp_float y = x / 3;

std::cout << std::setprecision(std::numeric_limits<boost::multiprecision::mp_float>::digits10)
               << std::scientific
               << boost::multipreccision::sqrt(x / y)
               << std::endl;

... and so on...

But if you have a sequence of them, they can be copied with
std::copy or set with std::fill, and the lot.

Sincerely, Chris.