[Boost-users] [boost-users][array] Passing by reference

Subject: [Boost-users] [boost-users][array] Passing by reference
From: Ryan McConnehey (mccorywork_at_[hidden])
Date: 2010-02-25 20:59:20

I'm wanting to pass a boost::array by reference to a function.  
Normally, this isn't a problem.  My first approach yielded a compiler 
error stating boost::array needs template parameters.  When adding the 
template parameters (approach 2) the compiler then states boost::array 
needs T to be a compile time constant.  I want the function to be able 
to take different boost::array sizes.  Can boost::array be passed by 
reference without knowing the size of the array at compile time?  Any 
help would be great.

Ryan

Approach 1
void extract (boost::array & var) {}

Approach 2
template<typename T, typename S>
void extract (boost::array<T, S> & var) {}