[boost] stl extensions

From: Anthony Williams (anthwil_at_[hidden])
Date: 2002-10-01 03:37:47

Toon Knapen writes:
 > I've been using my own std::is_sorted, std::iota etc. on compilers/stl's that 
 > do not provide these extensions (snippet below). OTOH, I've seen that 
 > boost/detail/algorithm does the same thing (but here all these are defined in 
 > the boost namespace, not the std namespace).
 > 
 > Now I think it would be interesting to provide these extensions for all stl's 
 > that do not include these to improve portabilitity of C++ programs. Should 
 > boost/detail/algorithm.hpp be used for this (but in that case the header 
 > should directly be in the boost includes and not in a 'detail' subdirectory) 
 > or would it be better to define these in the std namespace ?

It is undefined behaviour to add them to namespace std, so they had better
live in namespace boost.

However, they look useful so should be in a non-detail header. For those
implementations that have them, boost::x could forward to std::x

Anthony