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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;
- }
-}