labs 1-6: init

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

lab4/10.cpp

@@ -0,0 +1,25 @@
+#include <algorithm>
+#include <iostream>
+using namespace std;
+
+class Trio {
+private:
+  int a, b, c;
+
+public:
+  Trio(int, int, int);
+  friend int biggest(Trio);
+};
+
+Trio::Trio(int a, int b, int c) {
+  this->a = a;
+  this->b = b;
+  this->c = c;
+}
+
+int biggest(Trio t) { return (max({t.a, t.b, t.c})); }
+
+int main() {
+  Trio t(444, 4, -44);
+  cout << biggest(t);
+}

lab4/12.cpp

@@ -0,0 +1,33 @@
+#include <algorithm>
+#include <iostream>
+using namespace std;
+
+class Foo;
+class Bar;
+
+class Foo {
+private:
+  int foo;
+
+public:
+  Foo(int n) { foo = n; }
+  friend int bigger(Foo, Bar);
+};
+
+class Bar {
+private:
+  int bar;
+
+public:
+  Bar(int n) { bar = n; }
+  friend int bigger(Foo, Bar);
+};
+
+int bigger(Foo a, Bar b) { return max(a.foo, b.bar); }
+
+int main() {
+  Foo a(5);
+  Bar b(55);
+
+  cout << bigger(a, b);
+}

lab4/file.org

@@ -0,0 +1,81 @@
+* Write a program to find the biggest of three numbers using friend function.
+
+#+ATTR_LATEX: :options frame=single,breaklines=true
+#+begin_src cpp :tangle 10.cpp :results output :exports both :wrap src text
+#include <algorithm>
+#include <iostream>
+using namespace std;
+
+class Trio {
+private:
+  int a, b, c;
+
+public:
+  Trio(int, int, int);
+  friend int biggest(Trio);
+};
+
+Trio::Trio(int a, int b, int c) {
+  this->a = a;
+  this->b = b;
+  this->c = c;
+}
+
+int biggest(Trio t) { return (max({t.a, t.b, t.c})); }
+
+int main() {
+  Trio t(444, 4, -44);
+  cout << biggest(t);
+}
+#+end_src
+
+#+RESULTS:
+#+begin_src text
+444
+#+end_src
+#+LATEX: \clearpage
+
+* Write a program to demonstrate the use of friend function with Inline assignment.
+All friend functions are inline functions.
+
+* Write a program to find the greatest of two given numbers in two different classes using friend function.
+#+begin_src cpp :tangle 12.cpp :results output :exports both :wrap src text
+#include <algorithm>
+#include <iostream>
+using namespace std;
+
+class Foo;
+class Bar;
+
+class Foo {
+private:
+  int foo;
+
+public:
+  Foo(int n) { foo = n; }
+  friend int bigger(Foo, Bar);
+};
+
+class Bar {
+private:
+  int bar;
+
+public:
+  Bar(int n) { bar = n; }
+  friend int bigger(Foo, Bar);
+};
+
+int bigger(Foo a, Bar b) { return max(a.foo, b.bar); }
+
+int main() {
+  Foo a(5);
+  Bar b(55);
+
+  cout << bigger(a, b);
+}
+#+end_src
+
+#+RESULTS:
+#+begin_src text
+55
+#+end_src