Martin Wille wrote:
STLPort implements std::min in the namespace _STL. BOOST_USING_STD_MIN() correctly expands to: using _STL ::min
The (shortened) result of preprocessing is:
namespace _STL {
template <class _Tp> inline const _Tp& (min)(const _Tp& __a, const _Tp& __b) { return __b < __a ? __b : __a; } template <class _Tp> inline const _Tp& (max)(const _Tp& __a, const _Tp& __b) { return __a < __b ? __b : __a; }
template <class _Tp, class _Compare> inline const _Tp& (min)(const _Tp& __a, const _Tp& __b, _Compare __comp) { return __comp(__b, __a) ? __b : __a; }
template <class _Tp, class _Compare> inline const _Tp& (max)(const _Tp& __a, const _Tp& __b, _Compare __comp) { return __comp(__a, __b) ? __b : __a; }
}
(the complete preprocessed source can be found at: http://tinyurl.com/yrflf )
I must be blind, I can't spot the line that hoists the contents of _STL:: into std::.
It's not there. STLPort must be #defining std to _STL.
In the worst case, I suppose for this compiler/library combination we can import std::min/max into the boost namespace with a using declaration and make BOOST_USING_STD_MIN() expand to nothing. Martyn, can you try that and see if it works?
Changing the source to
namespace notboost { BOOST_USING_STD_MIN(); // moved to namespace scope template <typename T> T const & proxy_min(T const &p, T const &q) { return min BOOST_PREVENT_MACRO_SUBSTITUTION(p, q); } }
indeed makes gcc-2.95.3 accept the code.
Well then, I guess that's what I'll do, unless somebody has a better idea. I'll sleep on it first. Thanks again, Martin. -- Eric Niebler Boost Consulting www.boost-consulting.com