Charles Tritt / Mbed 2 deprecated ArrayLimits

Demonstrate what can happen when array limits are exceeded.

Dependencies:   mbed

Fork of SimpleConsoleTest by Charles Tritt

main.cpp@2:80464803bc2f, 2017-10-12 (annotated)

Committer:
CSTritt
Date:
Thu Oct 12 20:35:08 2017 +0000
Revision:
2:80464803bc2f
Parent:
1:a000e0121191 
Cleaned up comments and output spacing.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
CSTritt 1:a000e0121191 1
CSTritt 1:a000e0121191 2 /*
CSTritt 1:a000e0121191 3 File: main.cpp
CSTritt 1:a000e0121191 4 Project: ArrayLimits
CSTritt 0:2f9e67d4c561 5
CSTritt 2:80464803bc2f 6 Demonstrates abuse of array limits on Nucleo boards.
CSTritt 2:80464803bc2f 7
CSTritt 2:80464803bc2f 8 If necessary, avoid this with code like:
CSTritt 2:80464803bc2f 9
CSTritt 2:80464803bc2f 10 if (index > SIZE - 1) {
CSTritt 2:80464803bc2f 11 index = SIZE - 1;
CSTritt 2:80464803bc2f 12 } else if (index < 0) {
CSTritt 2:80464803bc2f 13 index = 0;
CSTritt 2:80464803bc2f 14 }
CSTritt 2:80464803bc2f 15 Use index...
CSTritt 2:80464803bc2f 16
CSTritt 2:80464803bc2f 17 Created by Dr. C. S. Tritt; Last revised 10/12/17 (v. 1.0)
CSTritt 1:a000e0121191 18 */
CSTritt 1:a000e0121191 19 #include "mbed.h"
CSTritt 0:2f9e67d4c561 20
CSTritt 0:2f9e67d4c561 21 int main()
CSTritt 0:2f9e67d4c561 22 {
CSTritt 1:a000e0121191 23 float a[] {1.0, 3.0, 5.0, 7.0, 9.0 };
CSTritt 2:80464803bc2f 24 printf("Hello World !\n\n");
CSTritt 1:a000e0121191 25
CSTritt 1:a000e0121191 26 for (int i = 0; i > -10; i--) { // Displays zeros and one NaN.
CSTritt 1:a000e0121191 27 printf("a[%d] is %f.\n", i, a[i]);
CSTritt 1:a000e0121191 28 wait(0.5f);
CSTritt 0:2f9e67d4c561 29 }
CSTritt 1:a000e0121191 30
CSTritt 1:a000e0121191 31 for (int i = 0; i < 10; i++) { // Hangs after 6th value!
CSTritt 1:a000e0121191 32 printf("a[%d] is %f.\n", i, a[i]);
CSTritt 1:a000e0121191 33 wait(0.5f);
CSTritt 1:a000e0121191 34 }
CSTritt 1:a000e0121191 35
CSTritt 1:a000e0121191 36 while (true) {}; // Just loop here forever after tests.
CSTritt 0:2f9e67d4c561 37 }