Thread: vector push_back array

hi,

I've recently changed some code in my program from a multidimensional array to a vector, and I'm wondering if/how it's possible to initialise a vector array.
i.e.
vector<int> MyVector;
MyVector.push_back(int1,int2,int3,int4,int5);

old code:

Code:

	//header
	extern int LIST[][5];

	//source
	int LIST[][5] = 
	{
		{24,3,2,5,16};
		{24,2,5,16,3};
		{n1,n2,n3,n4,n5};
	};

//new code

Code:

	//header
	extern vector<int> LIST[5];

	//source
	void Create_List()
	{
		FillList(24,3,2,5,16);
		FillList(24,2,5,16,3);
		FillList(n1,n2,n3,n4,n5);
	}

	bool FillList(int i1, int i2, int i3, int i4, int i5)
	{
    		LIST[0].push_back(i1);
    		LIST[1].push_back(i2);
    		LIST[2].push_back(i3);
    		LIST[3].push_back(i4);
    		LIST[4].push_back(i5);

		return true;
	}

At the moment, I use FillList() function to populate the vector. Just wondering if there's a better way to do this other than calling another function each time ?


Thanks!

If you also have the array, you can pass that to the vector constructor so that the vector gets initialized with the values in the array.

Code:

vector<int> list(list_array, list_array + sizeof(list_array) / sizeof(int));

Thanks for the reply!
Was a little stuck but managed to figure it out from your post.

Code:

    vector<int> iVec(*iListArray,*iListArray+sizeof(iListArray) / sizeof(int));

How would one access then a particular element within vector, like you do an array given the above initialisation?
i.e.

Code:

int LIST[][5] = 
{
    {1,2,3,4,5},
    {6,7,8,9,10},
};

cout << LIST[2][3];

cout << iVec[i][j] doesn't work with the above particular setup?


Thanks!