Passing array as const slows down code?

[Joseph Rushton Wakeling]

On 28/04/12 00:29, Era Scarecrow wrote:
> Last try adding ref after const; At the off chance it's shallow copying, this
> should remove that.

Ahhh, that works.  Thank you!

Back story: originally the reputation() function just took the array ratings and 
made an internal copy, ratings_, which was used by the rest of the code.  I took 
that out in this commit: 
https://github.com/WebDrake/Dregs/commit/4d2a8a055321c2981a453fc4d82fb781da2ea5c7

... because I found I got about a 2s speedup.  It's exactly the speedup which 
was removed by adding "const" to the function input, so I presume it's as you 
say, that this was implicitly creating a local copy.