What is the `&` operator?

The & operator in C and C++ is known as the "address-of" operator. It is used to obtain the memory address of a variable. When you place & before a variable name, it returns the location in memory where that variable is stored.

Example:

int age = 25;
int *ptr = &age; // ptr now holds the address of the variable age

In this example:

• age is an integer variable.
• &age gives the memory address of age, which is then stored in the pointer variable ptr.

Usage:

• The & operator is commonly used in functions like scanf() to pass the address of a variable, allowing the function to modify the variable's value directly.

If you have any more questions about the & operator or related concepts, feel free to ask!