![](/media/cache/profiles/Headshot_Fall2023_Square.jpg.50x50_q85.jpg)
New example. Initial version.
main.cpp
- Committer:
- CSTritt
- Date:
- 2021-10-11
- Revision:
- 113:cc5beacdad5a
- Parent:
- 112:c7c727d92f2a
- Child:
- 114:1cfad1babb55
File content as of revision 113:cc5beacdad5a:
/* Project: 21_GlobalEx_v5 File: main.cpp This simple program demonstrates that C passes arguments by value. Uses VT-100 escape sequences to prevent scrolling. See http://www.csie.ntu.edu.tw/~r92094/c++/VT100.html and/or https://gist.github.com/fnky/458719343aabd01cfb17a3a4f7296797. Written by: Dr. C. S. Tritt; Last revised 10/11/21 (v. 1.1) */ #include "mbed.h" int myFunc(int x, int y); // Function declaration required. // Arbitrary factor. Unitless. Move into main to break project. const float myFactor = 3.3f; // Suffix f indicates float (default is double). int main() { const int DELAY = 2000;; // mS wait time. const char ESC=27; // Define escape character for escape sequence. while(true) { // Main forever loop. printf("%c[2J%c[H", ESC, ESC); // ANSI/VT100 clear screen/home. printf("In function demo main...\n"); int a = 5; // Create and initialize a. printf("a = %d\n", a); // Display a. int b = 6; // Create and initialize b. printf("b = %d\n", b); // Display b. printf("About to call my function.\n"); int c = myFunc(a, b); // Call my function. printf("Function has returned.\n"); printf("c = %d\n", c); // Display b. ThisThread::sleep_for(DELAY); // Pause } } int myFunc(int x, int y) { // Function definition. Often in separate files! int z = (x + y)/myFactor; return z; // Explicit return is required in C/C++. }