Array of 2D arrays C

Question

I want to know if it is possible to create an array that is composed of 2D arrays.

I have a function that modifies the content of a 2D array, in my program this function is called 2035 times. And each time the result is saved in the same 2D array. So of course I can have access to only the 2035 update of the 2D array.

Is it possible to have an array of 2D arrays?
Is there a way to save each 2D array?

Lightness Races in Orbit · Accepted Answer · 2015-12-27 16:11:56Z

3

An array of an array is called a "2D array", and it looks like this:

int arr[100][500];

i.e. an array containing 100 arrays, each of length 500.

An array of a 2D array is called a "3D array", and it looks like this:

int arr[2035][100][100]

i.e. an array containing 2035 2D arrays, each of dimension 100x100.

edited Dec 27, 2015 at 16:11

Lightness Races in Orbit

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answered Dec 27, 2015 at 15:42

Haris

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2 Comments

M Fadil Over a year ago

Thanks! I guess starting to learn c by trying to implement AES makes you dumb ^^

Haris Over a year ago

@MFadil, Nothing like that. But you should start from simpler problems.

Marlon Henry Schweigert · Accepted Answer · 2015-12-27 16:06:10Z

0

int** arr = malloc(sizeof(int*)*5);
int a;
for (a = 0; a < 5; a++){
    arr[a] = malloc(sizeof(int)*3);
}
arr[3][1] = 2;

This way to make a dinamic vector in C in easy mode... But this isn't organized.

:)

answered Dec 27, 2015 at 16:06

Marlon Henry Schweigert

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