https://github.com/nomandhoni-cs/mycplusplusjourney

In this Repository I will publish my basic C++ code
https://github.com/nomandhoni-cs/mycplusplusjourney

Last synced: 19 days ago
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In this Repository I will publish my basic C++ code

• Host: GitHub
• URL: https://github.com/nomandhoni-cs/mycplusplusjourney
• Owner: nomandhoni-cs
• Created: 2022-01-13T07:58:24.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2022-10-17T11:57:02.000Z (about 2 years ago)
• Last Synced: 2024-10-07T03:20:22.643Z (about 1 month ago)
• Language: C++
• Size: 38.1 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# myCplusplusJourney

In this Repository I will publish my basic C++ code

## A huge thanks to GitHub Copilot to helping me to comment inside of code

### Table of Contents

**[Introduction to C++](#introduction-to-c++)**


# Introduction to C++

##### Low level Programming Language

That means C++ programs run close to hardware, C++ is commonly used in operating system. You can access the memory by function and use pointer.

##### Speed of Execution

C++ doesn't come with garbage collection like Java and Python does also C++ does not use interpreter that's why C++ gives us a speedy runtime.

##### Derived from C

C was the language before C++ to write close to hardware program, but C didn't had OOP that's why C++ came in.

##### Richer library than C

C++ offers more libary than C, it offers one of the great libary called STL (Standard Template Libbary) which can be used in CP and software development.

##### Object Oriented Programming

C++ Offers you to do Object Oriented Programming and that's why this is called C++.

### Basics

- Learned about buffer: If you press input `10 11` like this in a space between, the program will take the value of first variable 10 and second variable will take value 11.

- `sizeof()` operator gives you how much byte is a variable in a compiler.

- Unary Operator `++` here 

``` int x = 10; int z = x++; cout << x << " " << z; // 11 10 ```

above `z = x++` means `z = x; x = x + 1;`

``` int x = 10; int z = ++x; cout << x << " " << z; // 12 12 ```

above `z = ++x` means ` x = x + 1; z = x;`

- `static_castx/y`

```

int main

{

int x = 10, y = 20

double z = x / y;

cout << z; // 0

}

```

in avobe code output will be 0 when operation between the integer then It will give integer output.

if you want to solve that problem you have to use this.

``` double z = static_cast x / y;```

or you can use

``` double z = (double) x/y``` to get output 0.5

- `+=` Operator here `x += 10` means

`x = x + 10;` and you can use `*=, /=, -=` like same way as above.

- Coma operator `,`

```

{

    int x = 1, y = 2, z = 3, a;

    a = (x, y, z); 

    cout << a; // 3

    return 0;

}

```

Here `,` operator runs for left to right and it compares and first 2 value and it assiggn itself the second value.