1. By Hector M Lugo-Cordero September 17, 2008
Structs
By Hector M Lugo-Cordero
September 17, 2008
Department of Electrical and Computer Engineering

2. The Department of Electrical and Computer Engineering
Outline
Creation
Usage
Enhancing
The Department of Electrical and Computer Engineering

3. The Department of Electrical and Computer Engineering
Creation
Syntax
struct <name>{
Fields
[Methods] };
Just like objects (to be discussed) structs allow operator overloading in C++ (not in C)
The Department of Electrical and Computer Engineering

4. The Department of Electrical and Computer Engineering
Creation (cont.)
Example:
struct Pair{
double first;
double second;
Pair(){
first = 0;
second = 0; }
Pair(double x, double y){
first = x;
second = y;
bool equal(Pair other){
return (first == other.first) && (second == other.second); };
The Department of Electrical and Computer Engineering

5. The Department of Electrical and Computer Engineering
Usage
int main(int argc, char** argv) {
Pair myPair(5, 2); //sometimes struct Pair myPair
cout << “(“ << myPair.first << “, “ << myPair.second << “)” << endl;
Pair test;
test.first = 5;
Test.second = 2;
if(myPair.equal(test)){
cout << “Enter a new pair: ” << endl;
cin >> test.first;
cin >> test.second; //input is read x y }
return 0;
IS THERE AN EASIER WAY? :S
YES :P
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6. The Department of Electrical and Computer Engineering
Enhancing
Operator overloading
bool operator==(Pair& other){
return (first == other.first) && (second == other.second); }
friend ostream& operator<<(otstream& out, Pair data){
out << “(“ << data.first << “, “ << data.second << “)”;
return out;
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7. The Department of Electrical and Computer Engineering
Questions? ?
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