RE: [boost] Math constants for naive and gurus? - which constants do you want?

From: Fernando Cacciola (fcacciola_at_[hidden])
Date: 2001-10-24 13:26:36

----- Original Message -----
From: Peter Dimov <pdimov_at_[hidden]>
To: <boost_at_[hidden]>
Sent: Wednesday, October 24, 2001 3:17 PM
Subject: Re: [boost] Math constants for naive and gurus? - which constants
do you want?

>
> I don't really see what's wrong with the simple
>
> namespace math
> {
>     double const pi = 3.14159265358...;
> }
>
>
It doesn't fit well into generic programming:

template<class Numeric>
void foo ( Numeric angle )
{
   if ( angle == pi )  // A narrowing conversion will occur here, if, for
instance, Numeric is 'long double' or 'MyReallyBigFloat'
}

Fernando Cacciola
Sierra s.r.l.
fcacciola_at_[hidden]
www.gosierra.com