[boost] "time" in global namespace?

From: Matthias Schabel (boost_at_[hidden])
Date: 2006-11-06 13:31:27

While fine-tuning my units code, I've run into something that's  
puzzling to me. Here's a minimal example: if I try to compile this  
program:

#include <iostream>

namespace boost {

namespace units {

typedef int		time;
typedef double	length;

} // namespace units

} // namespace boost

int main(void)
{
        using namespace boost::units;
        
        length	x = 10;
        time	t = 2;
        
        return 0;
}

I get an error : "'time' not declared in this scope". However, if I  
fully qualify the namespace for "time", it compiles fine:

#include <iostream>

namespace boost {

namespace units {

typedef int		time;
typedef double	length;

} // namespace units

} // namespace boost

int main(void)
{
        using namespace boost::units;
        
        length	x = 10;
        boost::units::time	t = 2;
        
        return 0;
}

This is on Xcode 2.4 (gcc 4.0.1). I assume that there is a definition  
of "time" somewhere in the standard headers that is polluting the  
global namespace. Has anyone run into this before? Any suggestions?

Matthias