forked from natto1784/ooplab
88 lines
1.4 KiB
Org Mode
88 lines
1.4 KiB
Org Mode
* Write a program to overload (++) operator.
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#+ATTR_LATEX: :options frame=single,breaklines=true
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#+begin_src cpp :tangle 19.cpp :results output :exports both :wrap src text
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#include <iostream>
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using namespace std;
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class Foo {
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int x;
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public:
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Foo(int _x) { x = _x; };
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Foo &operator++();
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int get() { return x; }
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};
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Foo &Foo::operator++() {
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x++;
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return *this;
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}
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int main() {
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Foo bar = Foo(-3);
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++bar;
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cout << bar.get();
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}
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#+end_src
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#+LATEX: \clearpage
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* Write a program to overload + operator.
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#+ATTR_LATEX: :options frame=single,breaklines=true
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#+begin_src cpp :tangle 20.cpp :results output :exports both :wrap src text
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#include <iostream>
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using namespace std;
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class Foo {
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int x;
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public:
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Foo(int _x) { x = _x; };
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Foo operator+(Foo);
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int get() { return x; }
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};
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Foo Foo::operator+(Foo bar) {
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return Foo(x + bar.get());
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}
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int main() {
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Foo bar = Foo(-3);
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Foo baz = Foo(8);
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cout << (bar + baz).get();
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}
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#+end_src
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#+LATEX: \clearpage
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* Write a program to overload * operator.
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#+ATTR_LATEX: :options frame=single,breaklines=true
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#+begin_src cpp :tangle 21.cpp :results output :exports both :wrap src text
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#include <iostream>
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using namespace std;
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class Foo {
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int x;
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public:
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Foo(int _x) { x = _x; };
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Foo operator*(Foo);
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int get() { return x; }
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};
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Foo Foo::operator*(Foo bar) {
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return Foo(x * bar.get());
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}
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int main() {
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Foo bar = Foo(-3);
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Foo baz = Foo(8);
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cout << (bar * baz).get();
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}
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#+end_src
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