#include<stdio.h>
#include<string.h>
#include<elf.h>

int main(){
	printf("hi\n");
	int a = 5;
	int b = 10;
	printf("%d\n", a);
	printf("a = %d, b = %d\n", a, b);
	// %d:  int (signed)
	unsigned int c;
	a = -357;
	c = a;
	if(c < 0)
		printf("c is less than 0!\n");
	else
		printf("c is not less than 0.  Good, it's unsigned, it should be!\n");
	printf("c = %d\n", c);
	printf("c = %u\n", c);
	printf("c = %x\n", c);
	c = 'c';
	char d = c;
	printf("c = %u\n", d);
	printf("c = %c\n", c);
	printf("c = %s\n", &c);

	double pi = 3.141592653;
	printf("pi = %1.2lf\n", pi);

	strcpy((char*)&c, "cat"); // (char*) is a cast.  We told the compiler to treat the address of c like a char*
	printf("The animal my daughter fed this morning was a %s\n", &c);
	printf("C is at location %ld\n", &c);
	printf("C is at location %lx\n", &c);
	printf("C is at location %p\n", &c);

	size_t l;
	printf("sizeof(l) = %d\n", sizeof(l));

	


	return 0;

}