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Subject: [boost] [Range] Boost and N2930?
From: Beman Dawes (bdawes_at_[hidden])
Date: 2009-07-31 08:16:30

N2930, Range-Based For Loop Wording (Without Concepts), provides begin()
and end() non-member function templates for standard library types. It
also provides general range access non-member templates:

   // 24.7 range access [iterator.range]
   template<typename C> auto begin(C& c) -> decltype(c.begin());
   template<typename C> auto begin(const C& c) -> decltype(c.begin());
   template<typename C> auto end(C& c) -> decltype(c.end());
   template<typename C> auto end(const C& c) -> decltype(c.end());
   template<typename T, size_t N> T* begin(T (&array)[N]);
   template<typename T, size_t N> T* end(T (&array)[N]);

(Until the official WG21 site gets updated, you can see a copy of n2930

Should Boost.Range and/or RangeEx be modified and/or extended in light
of N2930?

Can Boost.Range, RangeEx, or some other Boost component help developers
and users who want to take advantage of N2930 in C++03 now, and do so in
a way that transitions smoothly to C++0x as language and library available?


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