There has been a continual debate on which programming language/s to learn, to use. As the latest TIOBE Programming Community Index for August 2021 indicates – C (13%), Python (12%), C++ (7%), Java (10%), and C#(5%) together control nearly half the programming activities worldwide. Further, C Programming Language Family (C, C++, C#, Objective C etc.) dominate more than 25% of activities. Hence, learning C++ is important as one learns about the entire family, about Object-Oriented Programming and gets a solid foundation to also migrate to Java and Python as needed. C++ is the mother of most general purpose of languages. It is multi-paradigm encompassing procedural, object-oriented, generic, and even functional programming. C++ has primarily been the systems language till C++03 which punches efficiency of the code with the efficacy of OOP. Then, why should I learn it if my primary focus is on applications? This is where the recent updates of C++, namely, C++11 and several later offer excellent depths and flexibility for C++ that no language can match. These extensions attempt to alleviate some of the long-standing shortcomings for C++ including porous resource management, error-prone pointer handling, expression semantics, and better readability. The present course builds up on the knowledge of C programming and basic data structure (array, list, stack, queue etc.) to create a strong familiarity with C++98 / C++03. Besides the constructs, syntax and semantics of C++ (over C), we also focus on various idioms of C++ and attempt to go to depth with every C++ feature justifying and illustrating them with several examples and assignment problems. On the way, we illustrate various OOP concepts. The course also covers important advances in C++ 11 and later released features..
Programming In Modern C++ Week10 Programming Assignment July 2023
INTENDED AUDIENCE : Any interested audience
PREREQUISITES : 10th standard/high school
INDUSTRY SUPPORT : Programming in C++ is so fundamental that all companies dealing with systems as well as application development (including web, IoT, embedded systems) have a need for the same. These include – Microsoft, Samsung, Xerox, Yahoo, Oracle, Google, IBM, TCS, Infosys, Amazon, Flipkart, etc. This course would help industry developers to be up-to-date with the advances in C++ so that they can remain at the state-of-the-art.
Course Layout
Course Name : Programming In Modern C++ July 2023
Programming Assignment : Q1
#include <iostream>
class feet;
class inch{
public:
inch(double i) : i_(i){}
feet getValue();
void show(){ std::cout << i_ << " "; }
private:
double i_;
};
class feet{
public:
feet(double f) : f_(f){}
inch getValue();
void show(){ std::cout << f_ << " "; }
private:
double f_;
};
feet inch::getValue(){
feet t(i_ / 12.0);
return t;
}
inch feet::getValue(){
inch t(f_ * 12.0);
return t;
}
template <typename T>
decltype(auto) convert(T val){ // LINE-1
return val.getValue();; // LINE-2
}
int main(){
double a, b;
std::cin >> a >> b;
feet f(a);
inch i(b);
inch i1 = convert(f);
feet f1 = convert(i);
i1.show();
f1.show();
return 0;
}
Course Name : Programming In Modern C++ July 2023
Programming Assignment : Q2
#include <iostream>
#include <vector>
class number {
public:
number(){}
number(int i) : ip_(new int(i)) { }
number(const number& n) : ip_(new int(*(n.ip_) * 10)) { } // LINE-1: copy constructor
number& operator=(const number& n) { // LINE-2: copy assignment
if (this != &n) {
delete ip_;
ip_ = new int(*(n.ip_) * 10);
}
return *this;
}
~number() { delete ip_; }
number(number&& n) : ip_(n.ip_) { n.ip_ = nullptr; } // LINE-3: move constructor
number& operator=(number&& d) { // LINE-4: move assignment
if (this != &d) {
ip_ = d.ip_;
d.ip_ = nullptr;
}
return *this;
}
void show(){
if(ip_ == nullptr)
std::cout << "moved : ";
else
std::cout << *ip_ << " : ";
}
private:
int* ip_ {nullptr};
};
int main(){
int a;
std::cin >> a;
number n1(a);
number n2 = n1;
number n3;
n3 = n1;
n1.show();
n2.show();
n3.show();
number n4 = std::move(n1);
number n5;
n5 = std::move(n1);
n1.show();
n4.show();
n5.show();
return 0;
}