C++ — High-Performance Systems Programming Language
Build fast, reliable, and efficient software with uncompromising performance, low-level control, and modern abstractions.
Why C++
Unmatched Performance
Zero-cost abstractions and direct hardware access deliver performance that rivals assembly language.
Low-Level Control
Fine-grained memory management and system-level programming for complete control over your applications.
Modern Abstractions
C++20 and C++23 bring concepts, ranges, coroutines, and modules for expressive, type-safe code.
Vast Ecosystem
Decades of libraries, frameworks, and tools spanning every domain from games to finance.
Backward Compatibility
Leverage existing codebases with seamless interoperability across C++ standards.
Industry Standard
Trusted by major tech companies for critical infrastructure, operating systems, and real-time systems.
Modern C++ Features
Concepts
Define template requirements with clear, compile-time constraints that improve error messages and code clarity.
Ranges
Composable algorithms and lazy evaluation for elegant, efficient data processing pipelines.
Coroutines
Write asynchronous code that reads like synchronous code with first-class coroutine support.
Modules
Faster compilation and better encapsulation with the modern alternative to header files.
Memory Safety
Smart pointers, RAII, and modern best practices minimize memory leaks and undefined behavior.
#include <iostream>
#include <ranges>
#include <vector>
// Modern C++20 with concepts
template<typename T>
concept Numeric = std::integral<T> ||
std::floating_point<T>;
template<Numeric T>
T square(T value) {
return value * value;
}
int main() {
std::vector numbers{1, 2, 3, 4, 5};
// Ranges and views
auto squared = numbers
| std::views::transform(square<int>)
| std::views::filter([](int n) {
return n > 5;
});
for (int n : squared) {
std::cout << n << " ";
}
// Output: 9 16 25
return 0;
}Getting Started
Install a Compiler
Choose from industry-leading compilers with excellent C++20/23 support:
- GCC — GNU Compiler Collection with comprehensive standards support
- Clang — Modern compiler with excellent diagnostics and tooling
- MSVC — Microsoft Visual C++ for Windows development
Hello World
#include <iostream>
#include <string_view>
int main() {
constexpr std::string_view message =
"Hello, Modern C++!";
std::cout << message << std::endl;
return 0;
}Compile with:
g++ -std=c++20 hello.cpp -o helloBuild Systems
Modern build tools streamline your development workflow:
CMake
Industry-standard cross-platform build system
Meson
Fast, user-friendly build system with simple syntax
Ecosystem & Tooling
Package Managers
- vcpkg
Microsoft's cross-platform package manager with 2000+ libraries
- Conan
Decentralized package manager with binary management
Development Tools
- Visual Studio
Full-featured IDE with excellent debugging support
- CLion
JetBrains IDE with intelligent code assistance
Debuggers & Profilers
- GDB & LLDB
Powerful command-line debuggers
- Valgrind
Memory error detection and profiling suite
Testing Frameworks
- Google Test
Comprehensive unit testing framework
- Catch2
Modern, header-only test framework
Community & Resources
Join millions of developers building the future with C++
Documentation
Comprehensive references, tutorials, and guides for all skill levels
Standards Committee
ISO C++ standards development and evolution proposals
Community Forums
Connect with developers on Stack Overflow, Reddit, and Discord
CppCon
Annual conference with talks from industry experts
Learning Resources
Books, courses, and tutorials from beginner to advanced
Contribute
Contribute to compilers, libraries, and open-source projects