Allocate memory to char *** in C

Question

So, I\'m having trouble in allocating memory for a char *** type variable. My objective is to create a matrix of strings and the code I currently have for memor

Answer 1

As you have said, you were able to successfully create an array of strings using your below code:

char **list;
list = calloc(n, sizeof(char *));
for (j = 0; j < n; j++){
list[j] = calloc(MAX_STR, sizeof(char));
}

Now, you need an array of array of strings, so it should be:

char ***matrix;

matrix = calloc(n, sizeof(char**)); //This creates space for storing the address of 'n' array of strings 
for(z = 0; z < n; z++) { //This loop creates the 'n' array of strings.
    matrix[z] = calloc(n, sizeof(char*));
    for(i = 0; i < n; i++) {
        matrix[z][i] = calloc(MAX_STR, sizeof(char));
    }
}

So, basically, in the second code, you are just creating space for storing 'n' lists. Hope this makes it clear.