Hi, Is it true that a pointer assigned to the starting address of a dynamically allocated array does not have the information of the size of the array? So we have to use another variable to store its size for later processing the array through the pointer. But when we free the dynamically allocated array, we don't specify the size, ins...
I have created a 2 d array which reads as follows int i,j,lx,ly;// lx,ly are the row and column respectively double** a; a=(double**) malloc((lx+2)*sizeof(double)); a[0]= (double*) malloc((lx+2)*(ly+2)* sizeof(double)); assert(a[0]); for(i=1;i<lx+2;i++) { a[i]=a[i-1]+i*(ly+2); } // I...
I'm not sure if I'm using the correct terms, but I am curious how it's determined how much to increase the size of a Collection in Java when it gets full? I've tried searching but I'm not really coming up with anything useful. So, if I have something like List l = new ArrayList(1); l.add("1"); l.add("2"); How does it determine how mu...
I saw this example when I was trying to figure out how to pass pointers to dynamically allocated 2d arrays to functions: void zeroit(int **array, int nrows, int ncolumns) { int i, j; for(i = 0; i < nrows; i++) { for(j = 0; j < ncolumns; j++) array[i][j] = 0; } } I tried it and it works, but I don't understand how. How doe...