Re: [Boost-users] Using unordered_set or unordered_map to hold small array(s) of ints

Please do not top-post. On Fri, Aug 20, 2010 at 4:07 PM, B Hart wrote:

Just a comparison function?  How is, for example, unordered set going to know the end of the array, to hash it?  I don't know what is happening under-the-hood so I'm deferring to the list experts.

Can you give me a simple example?

How is it going to know the end? That depends on how you create your array and set up your hash function. If you have an end-of-array marker then you would stop at that (like how '\0' is the end-of-array marker for C strings), if it is a static length then you would just use that, etc...