What is the format specifier to use for printing address? 

What is the Format Specifier for Printing Address in C?

When working with addresses in the C programming language, it's important to use the correct format specifier to ensure that the address is displayed accurately. The format specifier is a special code used in printf and scanf functions to define the type of data being passed.

Format Specifier for Address in C

In C, the correct format specifier for printing an address is %p. This specifier is specifically designed for pointers, which are variables that store memory addresses.

void main() {
    int var = 10;
    printf("Address of var: %p", (void*)&var);
}

In this example, %p is used to print the address of the variable var. The & operator is used to obtain the address of the variable.

Remember, it's important to typecast the pointer to (void*) because %p expects a void* type.

Example Usage

void main() {
    int num = 42;
    int *ptr = #
    printf("Address of num: %p", (void*)ptr);
}

This code snippet demonstrates how to use %p to print the address of an integer variable.

Conclusion

Using the correct format specifier is crucial in C programming, especially when dealing with memory addresses. The %p specifier is used to print addresses, ensuring that they are displayed accurately.