Boost array Initialization in C++

Question

I need to declare a boost::array. I did it as boost::array<char, 116> buf; is there a possibility that I can declare with the size stored as a constant that is initialized from property file. something like boost::array<char, BUFFER_SIZE> buf;

Any Help?

Nim · Accepted Answer · 2011-01-18 16:28:42Z

5

No. If you want a dynamically sizable array, use a std::vector

Reason for No is that the template parameter cannot be provided at run time (caveat: current standard)

answered Jan 18, 2011 at 16:28

Nim

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etarion · Accepted Answer · 2011-01-18 16:32:15Z

3

If it's a constant available at compile-time, (meaning you #included your property file or something) then yes.

int const BUFFER_SIZE = 116;
boost::array<char, BUFFER_SIZE> buf;

is valid. If it isn't available at compile-time, then no.

answered Jan 18, 2011 at 16:32

etarion

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