pass a vector as argument

[anomaly]

Hi

How do you pass a vector array as an argument to a function? What's the syntax?

Thank you

[Prelude]

>How do you pass a vector array as an argument to a function?
A vector, or an array of vectors? I find your choice of words ambiguous. Here's both:

void a ( vector<int>& v );
void b ( vector<int> av[] );

...

int main()
{
  vector<int> v;
  vector<int> av[10];

  a ( v );
  b ( av );
}

But if it's the latter, you really should be using a vector of vectors instead of an array of vectors.

[anomaly]

Hi

Sorry, I'm new to this, I mean't just a vector. I'm using a vector instead of an array because I need to get the size, and I don't know how to get the size of an array.

[Prelude]

>and I don't know how to get the size of an array
Save it as a variable and pass it into your function:

void f ( int array[], int size );

int main()
{
  const int size = 10;
  int array[size];

  f ( array, size );
}

But using vectors is better anyway, so you stumbled on the superior solution for a different reason. Anyway, in my previous post, look at how I declared and called a(), that should show you how to pass a vector to a function. If you want the vector to be read-only, you can make it const:

void a ( const vector<int>& v );