c++ - How properly dynamically allocate 2d array inside void function? -

i 'm still newbie in c++, don't mean me. know how initialize 2 dimentional array in void function.

this example code gives me exceptions access violation locations instead:

#include "stdafx.h"  void matrixinit(char***); void matrixdel(char**);  void main(void){     char** game=0;     matrixinit(&game);     matrixdel(game);     return; }   void matrixinit(char*** matrix) {     matrix = new char**[3];     (int i(0); < 3; i++) {         matrix[i] = new char*[3];         (int j(0); j < 3; j++)             *matrix[i][j] = '0';     }     return; }  void matrixdel(char** matrix) {     (int i(0); < 3; i++)         delete[] matrix[i];     delete[] *matrix;     return; } 

props @fireant allocating array. after research , debugger plays, figure out. hope solution in future!

#include "stdafx.h"  using namespace std;  int** matrixinit(int, int); void matrixinit(int***, int, int); void matrixdel(int**, int); void matrixfill(int**, int, int); void matrixprint(int**, int, int);   void main(void) {     const int rows = 3, cols = 3;     int** game;      matrixinit(&game, rows, cols); //void allocation     //game = matrixinit(rows, cols);  //alternative allocation      matrixfill(game, rows, cols);     matrixprint(game, rows, cols);     matrixdel(game, rows);     cout << endl << "passed!"; //<iostream> lib required     _getch(); //<conio.h> lib required     return; }   //dynamical array allocation void function void matrixinit(int*** matrix, int nrow, int ncolumn) {     (*matrix) = new int*[nrow];     (int i(0); < nrow; i++)         (*matrix)[i] = new int[ncolumn]; }   //dynamical array allocation pointer return function int** matrixinit(int nrow, int ncolumn) {     int** matrix = new int*[nrow];     (int i(0); < nrow; i++)         matrix[i] = new int[ncolumn];      return matrix; }   //dynamical array deallocation void function void matrixdel(int** matrix, int nrow) {     (int i(0); < nrow; i++)         delete[] matrix[i];     delete[] matrix; }   //fill array void function  void matrixfill(int** matrix, int nrow, int ncolumn) {     (int i(0); < nrow; i++)         (int j(0); j < ncolumn; j++)             matrix[i][j] = (j + 1) + (i * nrow); }   //print array void function void matrixprint(int** matrix, int nrow, int ncolumn) {     (int i(0); < nrow; i++)         (int j(0); j < ncolumn; j++)             cout << "[" << << "][" << j << "] = " << matrix[i][j] << endl; }