icp/oer/courses/c-basics/sections/10-pointer/01-introduction/program.c

30 lines
732 B
C

#include <stdio.h>
int main(int argc, const char *argv[])
{
// Define a pointer
int* p;
// We make p point to another variables value:
int a = 2;
// Initializing the pointer
p = &a;
// Print value our pointer points to
printf("Value of p: %d\n", *p);
// Print the pointers Memmory adress
printf("Adress of p: %p\n", p);
// Access the value of p
*p = 42;
// The value of a is changed
// p points to the memory a is stored in
printf("Value of a: %d\n", a);
printf("Value of p: %d\n", *p);
a = 27;
// You can also change the value of a
// and the value of p will change
printf("Value of a: %d\n", a);
printf("Value of p: %d\n", *p);
}