[boost] [format] problem with special floating point values

From: Vyacheslav E. Andrejev (vandrejev_at_[hidden])
Date: 2004-11-12 05:12:34

Hello All,

Thare is a problem in boost::format to treat infinity floating point values. Compare output of the two following lines of code:

  cout << numeric_limits<double>::infinity();
  cout << boost::format("%f\n") % numeric_limits<double>::infinity();

The first one on my machine outputs

1.#INF

which denotes infinity. The code with boost::format outputs

1/5000 zeroes/.#INF000

It's not what I can expect in any way.

It's strange, but quiet NaN is outputed well.

-- 
Vyacheslav E. Andrejev
System Architect, Excelsior, LLC