Simple training demonstration to show the use of union and structure
Fork of OddExample2 by
main.cpp
- Committer:
- jf1452
- Date:
- 2013-11-26
- Revision:
- 11:085c63023906
- Parent:
- 10:6c0cd51df4df
File content as of revision 11:085c63023906:
/******************************************************************************* * This program demonstrates determines if a number is odd or even * * Jon Fuge V1.0 26/11/2013 First issue of code * *******************************************************************************/ #include "mbed.h" #include "USBSerial.h" union byte // Define new type “BYTE” { char Byte; // Use this to map a byte struct { char Bit0: 1; // map individual char Bit1: 1; // bits onto the char Bit2: 1; // mapped byte. char Bit3: 1; char Bit4: 1; char Bit5: 1; char Bit6: 1; char Bit7: 1; }; }; USBSerial serial; // Virtual serial port over USB. Use Teraterm as the interface int main() { byte cMyNumber; // Declare variable cMyNumber cMyNumber.Byte = 53; // Set it to an odd number wait (10); // Wait 10 seconds to connect port if (cMyNumber.Bit0 == 1) serial.printf("%i is odd\n\r", cMyNumber.Byte); else serial.printf("%i is even\n\r", cMyNumber.Byte); for(;;) {} // Loop forever }