Charles Tritt / Mbed 2 deprecated ArrayPointers

The connection between arrays and pointers.

Dependencies:   mbed

Fork of FunctionPointers by Charles Tritt

main.cpp@2:7d14b75d8a68, 2017-11-05 (annotated)

Committer:
CSTritt
Date:
Sun Nov 05 21:10:29 2017 +0000
Revision:
2:7d14b75d8a68
Parent:
1:bdea7966ea78 
Corrected a comment.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
CSTritt 0:f106e3c0c589 1 /*
CSTritt 1:bdea7966ea78 2 Project: ArrayPointers
CSTritt 0:f106e3c0c589 3 File: main.cpp
CSTritt 0:f106e3c0c589 4 Modified by: Dr. C. S. Tritt
CSTritt 0:f106e3c0c589 5 Last revised: 11/5/17 (v. 1.0)
CSTritt 0:f106e3c0c589 6
CSTritt 1:bdea7966ea78 7 Based on Horton Program 7.4 Arrays and pointers.
CSTritt 0:f106e3c0c589 8 */
CSTritt 0:f106e3c0c589 9 #include "mbed.h"
CSTritt 0:f106e3c0c589 10
CSTritt 1:bdea7966ea78 11 //
CSTritt 0:f106e3c0c589 12 int main(void)
CSTritt 0:f106e3c0c589 13 {
CSTritt 1:bdea7966ea78 14 char myString[] = "My text."; // Initialize a string.
CSTritt 1:bdea7966ea78 15 printf("\nString content (direct): %s\n", myString);
CSTritt 0:f106e3c0c589 16
CSTritt 1:bdea7966ea78 17 char* p = &myString[0]; // Take the address of the 1st element.
CSTritt 1:bdea7966ea78 18 printf("String content (explicit reference): %s\n", p);
CSTritt 0:f106e3c0c589 19
CSTritt 1:bdea7966ea78 20 p = myString; // A plain array name is a pointer to its 1st element.
CSTritt 1:bdea7966ea78 21 printf("String content (implied reference: %s\n", p);
CSTritt 0:f106e3c0c589 22
CSTritt 1:bdea7966ea78 23 // Here's another way to initialize a string. This is actually the
CSTritt 1:bdea7966ea78 24 // approach recommended by Kieras at Michigan as it may avoid the creation
CSTritt 2:7d14b75d8a68 25 // and storage of a literal followed by copying to the array...
CSTritt 1:bdea7966ea78 26 char* pMyOtherString = "Here is more text.";
CSTritt 1:bdea7966ea78 27 printf("Other string: %s\n", pMyOtherString);
CSTritt 1:bdea7966ea78 28
CSTritt 1:bdea7966ea78 29 printf("Done. I sleep now.\n");
CSTritt 1:bdea7966ea78 30 while(true) wait(3600.0f);
CSTritt 0:f106e3c0c589 31 }