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