Best way for creating 2 dimensional arrays (matrix)

[pipk]

Hello, thanks for taking the time to read.

What is the best way for creating a 2 dimensional array.

i have a char set up using:-

unsigned char ** array;

and then allocated it using:-

array=new unsigned char*[x];
for(int j=0; j<x;j++)
*(array+j)=new unsigned char [y];

is there an easier way??

thanks in advance

 

[mbaranski]

The way I would do it is:

char *array;
/* For an n (wide) by m (long) array, do: */
int m, n;
m = 20 /* Rows */
n = 10 /* Cols */
array = new unsigned char[m*n];
/* Then, if you want to access row 2, pos 4, it's
array[2 * n + 4]
/*for that element.*/
This allows you to treat a contigiuos array as 2d */

The code isn't tested, but the idea works! If it needs more explaining, post... As always, I hope that helped!

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