Re: 2.5.1: Header change breaks MacOS X

[Matthias Neeracher]

On Nov 24, 2004, at 1:28 PM, Han-Wen Nienhuys wrote:

> address@hidden writes:
> > One of the changes in 2.5.1 seems to be that all includes of <math.h>
> > got changed to <cmath>. Unfortunately, on MacOS X, this means that all
> > references to isinf() are no longer found (presumably cmath wraps this
> > as std::isinf, although I haven't tested that.
>
> What is the proper fix? Should we be using
>
>      using std;
>
> somewhere?

Yes, I think a declaration

using namespace std;

would solve the issue. C++ purists abhor the practice because it 
pollutes the program namespace with a potentially large set of symbols. 
The stylish solution is

using std::isinf;

in every file using this symbol, but this would be a lot of work, and a 
pain to write portably until all C++ platforms are up to date with 
their namespace usage.

Matthias