Category: C++

Comprehensive Guide to Implementing Multi-Factor Authentication

In an era where digital security is paramount, Multi-Factor Authentication (MFA) stands as a critical defense mechanism against escalating cyber threats. MFA, by definition, involves verifying a user’s identity by requiring multiple pieces of evidence before granting access to a system or application. This guide delves into the essentials of MFA, its pivotal role in […]

AI-Powered Code Completion for C++: Boosting Development Efficiency

The advent of Artificial Intelligence (AI) has ushered in a new era in the field of software development. AI’s integration into development tools has been a game-changer, particularly with the introduction of AI-powered code completion. This technology is not just a futuristic concept but a present-day reality that is reshaping how developers write code, especially […]

How to use #ifdef and #ifndef to check if an identifier has been defined

#ifdef, #ifndef and #endif are preprocessor directives which allow us to check wether or not a value has already been defined using the #define directive. This can be useful when you’re including files that may already have the same value defined using #define. Here’s an example that defines the value Whidbey only if it wasn’t defined before: #ifndef Whidbey#define Whidbey#endif Similarly, what’s between #ifdef and #endif is compiled […]

How to convert C++ variables to other data types using casting

There are several ways to convert C++ variables.Here is one method of converting an integer variable to a bool (boolean) variable: int MyInteger = 0;bool MyBool = (bool)MyInteger; And here is another way: int MyInteger = 0;bool MyBool = static_cast<bool>(MyInteger); In both cases, after the casting has been made, MyBool will contain the value false (since MyInteger was 0). If MyInteger was 1 or any other number […]

Size of Structures

In this programming tutorial we will see that 2 structures with the same elements but with different arrange of elements make a different size of structure. Look at these structures:struct st1{    bool b1;    int i1;    char c1;    bool b2;    int i2;}; struct st2{    bool b1;    bool b2;    char c1;    int i1;    int i2;}; st1 works the same as st2 in C/C++, but the size of these structures isdifferent, because of the size of the data packing. Look […]

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