Determining libstdc++ version at compile time

[Jason Merrill]

>>>>> "Craig" == Craig Rodrigues <rodrigc@mediaone.net> writes:

> I just looked for that macro and saw that it exists
> on libstdc++-v3 but not on libstdc++-v2.  Is this correct?

> So, my preprocessor check could go something like:

> #if (defined (__GLIBCPP__) && __GLIBCPP__ >= 20010301 )

You don't need the 'defined' check.  If you write

#if __GLIBCPP__ >= 20010301

and __GLIBCPP__ isn't defined, it evaluates to 0.

Jason