smallest positive double number

[gouqizi.lvcha]

Hi, All:

I wonder aht is the smallest positive double number in C++ under 32-bit
CPU

Rick

 

[Ralph D. Ungermann]

I wonder aht is the smallest positive double number in C++ under 32-bit
CPU

#include <limits>
double tiny = std::numeric_limits<double>::min();

or

#include <climits>
double tiny = DBL_MIN;


Ralph

 

[P.J. Plauger]

(e-mail address removed) wrote:

#include <limits>
double tiny = std::numeric_limits<double>::min();

denorm_min() is smaller, at least with IEEE floating-point.

P.J. Plauger
Dinkumware, Ltd.
http://www.dinkumware.com