References In C++
We’ve learned that C++ supports two sorts of variables so far: An ordinary variable is one that holds the value of a certain type. For example, let’s say we make a variable of type int, which means it can hold…
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Null Pointer In C/C++
A Null Pointer is a pointer that doesn’t point to any memory location. It saves the segment’s base address. The null pointer is used to hold null values, and the type of the pointer is void. A null pointer is a special…
Dereference Pointer In C/C++
A pointer is a variable that stores the address of another variable, as we already know from “what is a pointer.” The (*) represents the dereference operator, which is also known as an indirection operator. Dereferencing a pointer occurs when…
Void Pointer In C/C++
So far, we’ve learned that the address associated with a pointer must be of the same type as the pointer declaration. If we define an “int” pointer, for example, it cannot point to a float variable or any other type of…
const Pointer In C/C++
In C/C++, a constant pointer can’t change the address of the variable it’s pointing to, so the address stays the same. As a result, we can conclude that if a constant pointer points to one variable, it cannot point to…
sizeof() operator works In Pointer C/C++
The sizeof() operation determines the size of a data type, a constant, or a variable. It’s a compile-time operator since it calculates the size of any variable or constant at build time. The sizeof() operation calculates the amount of RAM…
What Are Wild Pointers? How Can We Avoid It
Wild pointers are uninitialized pointers that point to any arbitrary memory location, potentially causing a program to crash or behave improperly. It’s important to remember that a pointer p that points to a known variable is not a wild pointer. In…
Dangling Pointers in C/C++
Dangling/wild pointers are the most common pointer and memory management problems. A dangling pointer is a sort of initialized pointer in C that occurs when the programmer fails to initialize the pointer with a proper location. When an object is…
Pointer Arithmetic In C/C++
On the pointers, we can do arithmetic operations such as addition, subtraction, and so on. However, because the address is stored in the pointer, the result of an arithmetic operation on the pointer will also be a pointer if the…
