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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