pointer operators in c
& ==> address operator
* ==> dereference operator
// Example
int a = 1;
int *ptr; // int * defines a pointer variable pointing at an int
ptr = &a; // the address of 'a' is assigned to the pointer
// 'ptr' is now equal to the address of 'a'
// when dereferenced using *, it returns the value at that address
printf("value of a: %d", *ptr); // prints "value of a: 1"how to print value of pointer in c
#include <stdio.h>
#include <stdlib.h>
void pointerFuncA(int* iptr){
/*Print the value pointed to by iptr*/
printf("Value: %d\n", *iptr );
/*Print the address pointed to by iptr*/
printf("Value: %p\n", iptr );
/*Print the address of iptr itself*/
printf("Value: %p\n", &iptr );
}
int main(){
int i = 1234; //Create a variable to get the address of
int* foo = &i; //Get the address of the variable named i and pass it to the integer pointer named foo
pointerFuncA(foo); //Pass foo to the function. See I removed void here because we are not declaring a function, but calling it.
return 0;
}Copyright © 2021 Codeinu
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