Can 2 variables have the same address?

You can not have 2 variables at the same address, the standard specifically mandates against this. You can not change the address of an object once it has been assign by the compiler.

Does every variable in C have a unique address?

The compiler maps every variable name to a unique memory address and incorporates the address into the machine code.

Can 2 variables have same name in C?

Do not use the same variable name in two scopes where one scope is contained in another. A block should not declare a variable with the same name as a variable declared in any block that contains it.

What is the final memory address for VAR1?

The offset of VAR1 is 0108h, and full address is 0B56:0108. The offset of var2 is 0109h, and full address is 0B56:0109, this variable is a WORD so it occupies 2 BYTES.

How is variable address determined in C?

There is no other way to “know the exact address” of a variable in Standard C than to print it with “\%p”. The actual address is determined by many factors not under control of the programmer writing code. It’s a matter of OS, the linker, the compiler, options used and probably others.

What is address of variable in C?

The Address Operator in C also called a pointer. This address operator is denoted by “&”. An address of the operator is used within C that is returned to the memory address of a variable. These addresses returned by the address of the operator are known as pointers because they “point” to the variable in memory.

Can local and global variables have the same name in C?

A program can have the same name for local and global variables but the value of a local variable inside a function will take preference.

Can two function declare variable with same name?

Can two functions declare variables(non static) with the same name? Explanation: We can declare variables with the same name in two functions because their scope lies within the function.

Can 2 variables refer to the same ArrayList?

An ArrayList can contain multiple references to the same object. The same object may belong to 2 different ArrayLists. ArrayList’s add method makes a copy of the object and adds it to the list. Two variables can refer to the same Arraylist.

What does MOV mean in assembly?

Data Movement Instructions The mov instruction copies the data item referred to by its second operand (i.e. register contents, memory contents, or a constant value) into the location referred to by its first operand (i.e. a register or memory).

Can two variables of different functions have the same address?

So, two variables of different function can have same address (but at different times). Look at the difference between ‘static’ and ‘automatic’ memory allocation. You are using automatic memory allocation in function declarations and the memory is freed when the function is exited:

Can two pointers point to the same memory address in C?

Pointers are variables whose value is the address of a C object, or the null pointer. Yes it does! Multiple pointers can point to the same thing. Yes two pointer variable can point to the same memory address. As we know that pointer is a variable which contains address of same data type.

Can two pointer variables point to the same object?

Yes, two pointer variables can point to the same object: Pointers are variables whose value is the address of a C object, or the null pointer.

Why do local variables have different values for different arguments?

Had the number of arguments, the arguments types or the local variable types been different, you would have noticed different values for the addresses of the local variables. The reason is that those variables are located on the call stack, and the same memory location is reused for subsequent calls.