Cpp Corner @CppCorner

A corner for C++ news, articles, and quizzes. Joined November 2024

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Cpp Corner @CppCorner

6 months ago

C++20: Simplifying Templates with auto In C++20, you can now use auto for declaring template parameters! This new feature makes code simpler and more concise, especially for generic functions. This is essentially the same thing as a template<typename T> but with less…

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Cpp Corner @CppCorner

6 months ago

Understanding constexpr in C++ In C++, constexpr allows you to evaluate expressions at compile-time, improving performance and enabling more optimizations. Use it to declare functions or variables that can be computed at compile-time! Why use constexpr? Optimizes performance…

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Cpp Corner @CppCorner

7 months ago

Use std::initializer_list to Initialize Objects with {} ✔️ Enables easy list-based initialization ✔️ Works in constructors & functions ✔️ Read-only & auto-type deduction

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Yossi Kreinin @YossiKreinin

7 months ago

Access to C++ thread-local storage is surprisingly fast or surprisingly slow - depending on details few people would think are relevant. I wrote up guidelines for keeping it fast, with examples of what combining "zero-overhead features" does (hint: 0+0>0.) Link in 1st reply:

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Cpp Corner @CppCorner

7 months ago

Initialization of Object in C++: Constructor vs Assignment In the second line, myClass b = 1; calls the constructor (not the assignment operator), using the int version to initialize b. The output of this code is: String constructor Int constructor

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Cpp Corner @CppCorner

7 months ago

What is an explicit constructor in C++? The explicit keyword prevents automatic type conversions, avoiding potential bugs. Here's how it works

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Cpp Corner @CppCorner

7 months ago

Understanding Aggregates in C++ In C++, aggregates are simple data structures designed for straightforward data storage without additional logic. They allow direct initialization using {} (brace initialization) and are commonly used in low-level programming, POD (Plain Old…

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Cpp Corner @CppCorner

7 months ago

thread_local in C++ In C++, thread_local creates a separate variable instance for each thread. Compared to other storage types: static → Shared across function calls (one instance per program/thread) auto → New instance per function call (default for local variables) extern…