#include<stdio.h>
int *assignval (int *x1, int val) {
	printf("value x1 %d  inside x1 %u address of x1 %u\n", *x1, x1, &x1);
    *x1 = val;
    return x1;
}
 
void main () {
    int *x = malloc(sizeof(int));
    printf("value x %d  inside x %u address of x %u\n", *x, x, &x);
    if (NULL == x) return;
    x = assignval (x,0);
    printf("value x %d  inside x %u address of x %u\n", *x, x, &x);
    if (x) { // x contains the address so this will be true
    	printf("\n\nInside part\n");
        x = (int *)malloc(sizeof(int));
        printf("value x %d  inside x %u address of x %u\n", *x, x, &x);
        if (NULL == x) return;
        x = assignval (x,10);
        printf("value x %d  inside x %u address of x %u\n", *x, x, &x);
    }
    printf("%d\n", *x);
    free(x);
}
 

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