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// This file is part of www.nand2tetris.org
// and the book "The Elements of Computing Systems"
// by Nisan and Schocken, MIT Press.
// File name: projects/11/ComplexArrays/Main.jack
/**
* Performs several complex array processing tests.
* For each test, the expected result is printed, along with the
* actual result. In each test, the two results should be equal.
*/
class Main {
function void main() {
var Array a, b, c;
let a = Array.new(10);
let b = Array.new(5);
let c = Array.new(1);
let a[3] = 2;
let a[4] = 8;
let a[5] = 4;
let b[a[3]] = a[3] + 3; // b[2] = 5
let a[b[a[3]]] = a[a[5]] * b[((7 - a[3]) - Main.double(2)) + 1]; // a[5] = 8 * 5 = 40
let c[0] = null;
let c = c[0];
do Output.printString("Test 1: expected result: 5; actual result: ");
do Output.printInt(b[2]);
do Output.println();
do Output.printString("Test 2: expected result: 40; actual result: ");
do Output.printInt(a[5]);
do Output.println();
do Output.printString("Test 3: expected result: 0; actual result: ");
do Output.printInt(c);
do Output.println();
let c = null;
if (c = null) {
do Main.fill(a, 10);
let c = a[3];
let c[1] = 33;
let c = a[7];
let c[1] = 77;
let b = a[3];
let b[1] = b[1] + c[1]; // b[1] = 33 + 77 = 110;
}
do Output.printString("Test 4: expected result: 77; actual result: ");
do Output.printInt(c[1]);
do Output.println();
do Output.printString("Test 5: expected result: 110; actual result: ");
do Output.printInt(b[1]);
do Output.println();
return;
}
function int double(int a) {
return a * 2;
}
function void fill(Array a, int size) {
while (size > 0) {
let size = size - 1;
let a[size] = Array.new(3);
}
return;
}
}
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