[boost] MultiArray warning under /Za

Boost 1.33.1 In multi_array.hpp: struct populate_index_ranges { multi_array_types::index_range operator()(multi_array_types::index base, multi_array_types::size_type extent) { return multi_array_types::index_range(base,base+extent); The parameter name extent seems to be typedef'ed previously. This results in: external\boost\include\boost\multi_array.hpp(46) : warning C4224: nonstandard extension used : formal parameter 'extent' was previously defined as a type I've changed it in my tree to be extent_. Sohail