From 91819bddb6acf136949263d9013c3c26655c5f43 Mon Sep 17 00:00:00 2001
From: angeld55 <angel_dimitriev@abv.bg>
Date: Mon, 8 Nov 2021 16:26:33 +0200
Subject: sem 5

---
 Sem. 05/references.cpp | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 Sem. 05/references.cpp

(limited to 'Sem. 05/references.cpp')

diff --git a/Sem. 05/references.cpp b/Sem. 05/references.cpp
new file mode 100644
index 0000000..fc89cb2
--- /dev/null
+++ b/Sem. 05/references.cpp	
@@ -0,0 +1,56 @@
+#include <iostream>
+using namespace std;
+
+// lvalue ("връщане на променлива")
+// rvalue ("връщане на константа")
+
+//Референция - друго име за някоя променлива
+
+//Пример: 
+//Напишете функция, която приема цяло число и връща най-голямата и най-малката цифра.
+
+void getMaxAndMinDigit(int n, int& maxDigit, int& minDigit)
+{
+	int max = 0;
+	int min = 9;
+
+	while (n != 0)
+	{
+		int lastDigit = n % 10;
+
+		if (lastDigit > max)
+			max = lastDigit;
+
+		if (lastDigit < min)
+			min = lastDigit;
+
+		n /= 10;
+	}
+	maxDigit = max;
+	minDigit = min;
+
+}
+
+
+int f1(int& n) //-връщат константа (rvalue)
+{
+	n++;
+	return n;
+}
+int& f2(int& n) //--връщат променлива (lvalue).
+{
+	n++;
+	return n;
+}
+
+///!!!!!!!!!!! error
+int& f3()
+{
+	int a = 10;
+	return a;
+}
+
+int main()
+{
+	//cout << ++f();
+}
-- 
cgit v1.3.1-23-gd82d