Initialize multidimensional array with zeros

Question

In C++ you can initialize a one dimensional array with 0 with a code like this:

int myarray[100] = {0};

Is there a similar way for multidim

Answer 1

You do it exactly the same way

int marr[10][10] = {0};

Edit:

This is a C solution. For a C++ solution you can go for:

int marr[10][10] = {};

These 2 solutions do not work for arrays that have size defined via variables. e.g.:

int i, j = 10;
int marr[i][j];

To initialize such an array in C++ use std::fill.

Answer 2

A multidimensional array is an array of arrays.

The same general array initialization syntax applies.

By the way you can just write {}, no need to put an explicit 0 in there.

Answer 3

use vector instead of array it will give you more flexibility in declaration and in any other operation

vector<vector<int> > myarray(rows,vector<int>(columns, initial_value));

you can access them same as you access array,

and if u still want to use array then use std::fill