Help with function parameter syntax

[aatwo]

Hey guys. Sorry if this is trivial but I came across some function parameter syntax that I've not seen before and was wondering if someone could explain it to me.

void myFunction( std::vector<double> (&param)[3] );

What is this function expecting to be passed in to it?

[Peter87]

param is a reference to an array of 3 vectors of doubles.

std::vector<double> vecArray[3]; // creates an array of 3 vectors
myFunction(vecArray); // passes it to the function 

[aatwo]

Ah stupid me, of course it is. Thanks for the reply. It's been so long since I've used raw arrays that their syntax has apparently become alien to me.

Thanks again.