Skip to main content

Contact Us


If you have any questions or need further information, feel free to reach out to us:

Email: techprastu@gmail.com

LinkedIn: TechPrastu LinkedIn Profile

WhatsApp: +91-9409571117

Comments

Popular posts from this blog

Understanding push_back and emplace_back in C++

| Understanding push_back and emplace_back in C++ C++ provides several mechanisms to add elements to its containers, and two often used are push_back and emplace_back . Understanding the difference between these methods can help you write more efficient and expressive code. Let's delve into these concepts with examples to illustrate their usage and benefits.

constexpr in C++

|  Let’s dive into the depths of constexpr in C++! constexpr is short for "constant expression." It was introduced in C++11 and further enhanced in C++14 and C++20. The primary purpose of constexpr is to allow the evaluation of expressions at compile-time, enabling several powerful optimizations. Here’s a detailed breakdown: Purpose of constexpr The idea behind constexpr  is to inform the compiler that the value of a variable or the result of a function can be determined at compile-time. It will be if the expression can be evaluated at compile-time, resulting in performance benefits. It’s beneficial for: - Compile-time constants: Values that don’t change at runtime. - Optimizations: Allowing the compiler to optimize code more effectively. - Template metaprogramming: Enhancing the power of templates. Usage in Variables A constexpr  variable must be initialized with a constant expression.  Here’s an example: constexpr int length = 10; constexpr int width = 5; conste...

Reasons for a C++ Program Crash

C++ programs may crash unexpectedly for various reasons. Here are some typical causes of such crashes: Segmentation Fault A segmentation fault is a major cause of program crashes. It occurs when: Attempting to access a memory location that doesn’t exist. Trying to write to a read-only memory location. Accessing protected memory locations, such as kernel memory. Example: int main() {     char *text;     // Stored in the read-only part of the data segment     text = "ABC";     // Problem: trying to modify read-only memory     *(text + 1) = 'n';     return 0; }   Stack Overflow Stack overflow happens due to non-terminating recursion, which exhausts the stack memory. Example: #include <stdio.h> void functionRecursive(int num)  {     if (num =...