🟢 Foundation · Lesson 03

C++ Setup: GCC, MinGW, VS Code and Online Compiler

What is C++ Setup: GCC, MinGW, VS Code and Online Compiler?

C++ Setup: GCC, MinGW, VS Code and Online Compiler
To run C++ programs, you need a compiler such as GCC/MinGW, an editor such as VS Code, or an online compiler for quick practice. Setup teaches how source code becomes an executable program.

Level
🟢 Beginner – C++ Foundation

Example File
setup-compiler.cpp

Main Focus
Concept + syntax + practical C++ program

Why should you learn this?

It helps you write correct and readable C++ programs.
It is used repeatedly in school practicals, projects and competitive programming.
It builds the base for advanced topics such as OOP, STL and data structures.

Important Terms

Term	Meaning / Use
GCC	C++ Setup: GCC, MinGW, VS Code and Online Compiler programming में Gcc use होता है।
MinGW	C++ Setup: GCC, MinGW, VS Code and Online Compiler programming में Mingw use होता है।
g++	G++ used in C++ Setup: GCC, MinGW, VS Code and Online Compiler programming.
VS Code	C++ Setup: GCC, MinGW, VS Code and Online Compiler programming में Vs code use होता है।
terminal	C++ Setup: GCC, MinGW, VS Code and Online Compiler programming में Terminal use होता है।

Syntax / Pattern

C++

Compile a file using: g++ program.cpp -o program and run it using ./program or program.exe on Windows.

Example Program

main.cpp

// File: hello.cpp
#include <iostream>
using namespace std;
int main() {
    cout << "Compiler is ready";
    return 0;
}

// Terminal command:
// g++ hello.cpp -o hello
// ./hello

Expected Output

Compiler is ready

Program Explanation

The compiler checks syntax and converts code into machine executable form.
The -o option sets the output executable name.

Exam Tip: In C++ practical answers, write the logic first, then the program, then expected output. For theory, always include one suitable example.

Where will you use it?

school lab setup
local practice
debugging compile errors

Common Mistakes

Saving file with .txt extension.
Installing VS Code but not installing compiler.
Forgetting to add compiler path.

Practice Tasks

Install any C++ compiler and run Hello World.
Write the command to compile test.cpp.

Summary

C++ Setup: GCC, MinGW, VS Code and Online Compiler एक ज़रूरी C++ topic है। परिभाषा सीखें, syntax समझें, example program चलाएं और फिर practice tasks हल करके concept मज़बूत करें।