Listing 10 2 ModifiedDotOperator
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/*Listing 10-2. Modified dot operator example. Purpose: To show the use of the dot operator Dr. Purdum, December 21, 2014 */ struct servicePeople { int ID; char Name[20]; char PW[10]; long Phone; } myServicePeople, yourServicePeople; struct servicePeople SetPhoneNumber(struct servicePeople temp); // New void setup() { Serial.begin(9600); Serial.print("myServicePeople lvalue: "); Serial.print((int) &myServicePeople); Serial.print(" yourServicePeople lvalue: "); Serial.println((int) &yourServicePeople); yourServicePeople.ID = 205; Serial.print("myServicePeople.ID rvalue: "); Serial.print(myServicePeople.ID); Serial.print(" yourServicePeople.ID rvalue: "); Serial.println(yourServicePeople.ID); // myServicePeople = EmptyFunction(yourServicePeople); // Changed myServicePeople = SetPhoneNumber(yourServicePeople); // Changed Serial.println("\nAfter assignment:\n"); Serial.print("myServicePeople.ID rvalue: "); Serial.print(myServicePeople.ID); Serial.print(" yourServicePeople.ID rvalue: "); Serial.println(yourServicePeople.ID); Serial.print("A servicePerson structure takes "); Serial.print(sizeof(servicePeople)); Serial.println(" bytes of storage."); Serial.print("myServicePeople.Phone rvalue: "); // New Serial.print(myServicePeople.Phone); // New } void loop(){ } // All lines below are new struct servicePeople SetPhoneNumber(struct servicePeople temp) { temp.Phone = 2345678; return temp; }