size of pointer in c

Size of Pointer in C

In C, the size of a pointer depends on the underlying architecture and the data model being used. The size of a pointer determines the amount of memory required to store the address of an object or function in memory.

On most modern systems, the size of a pointer is typically 4 bytes or 8 bytes. This means that a pointer can store the memory address of an object or function within a range of 2^32 or 2^64 addresses, respectively.

The size of a pointer can be determined using the sizeof operator in C. For example, to determine the size of a pointer to an integer, you can use the following code:

#include <stdio.h>

int main() {
    int *ptr;
    printf("Size of pointer to int: %zu bytes\n", sizeof(ptr));
    return 0;
}

When you run this code, it will print the size of the pointer to an integer in bytes.

Please note that the size of a pointer may vary on different systems and compilers. It is always a good practice to use the sizeof operator to determine the size of a pointer in your specific environment.

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