Pointers is the most powerful tool in c++; it helps the programmer access and manipulates the memory directly. For instance, when a variable is created, the job of the compiler is to do memory allocation to store the value of the variable. And this value is retrieved using the variable nam...
Once a variable is declared and defined, you need to assign an initial value to it, to make use of the variable in your program. This process of assigning an initial value to variables is known as variable initialization. Why Initialize Variables In C++ Programs? Consider a situation where...
Generally, pointers are rarely used when coding in .NET. However there are cases when their utilization can be useful. For example, we might interface with unmanaged functions (e.g. from a C library) and we need to pass a data structure to the unmanaged code. This is common in scenarios...
Initializing an array of structs in C can be a bit tricky, especially for those new to the language. However, once you grasp the concept, it becomes a straightforward process. This article will walk you through the various methods to initialize an array of structs in C, providing clear exam...
How to initialize a shared pointer in C++ if it is a class member? The below code shows how to initialize a shared_ptr that is a class member. #include <iostream> #include <memory> usingnamespacestd; classMyTest { public: voiddoSomething() ...
How to use the structure of function pointer in C? Function pointer in structure in C. Suppose there is astructure in cthat contains function pointers, this function pointer stores the address of the function that calculates the salary of an employee (Grad1 and Grad2 officer). ...
In this article, you learned the concept of stack data structure and its implementation using arrays in C. Continue your learning withHow To Create a Queue in CandHow To Initialize an Array in C. Thanks for learning with the DigitalOcean Community. Check out our offerings for compute, storage...
I want to create bitmap in c++. In the simplest way, I read a bitmap an wrote in a new bitmap. but it is working for some images but the output image is shifted about 32 pixels to the left, and it is not working for some images, the image output is very difformed. Size of...
The following example code demonstrates the case when the array of 100 pointers to theMyObjectstructs is declared on the stack, but each individualMyObjectobject is allocated on dynamic memory (heap). Note that we also implemented theinitMyObjectfunction to initialize each member in theMyObjectfor...
In the previous three posts of this CUDA C & C++ series we laid the groundwork for the major thrust of the series: how to optimize CUDA C/C++ code.