#include <stdio.h>
#include <vector>

void dumpMem(void const* addr, size_t size)
{
	unsigned char const* p = static_cast<unsigned char const*>(addr);
	for(size_t i=0 ; i<size ; ++i){
		printf("%02X", p[i]);
	}
	printf("\n");
}

int main()
{
	std::vector<int> vec = {2, 16, 5, 123, 20};
	printf("&vec = %p; sizeof(vec)=%d\n", &vec, sizeof(vec));
	printf("vec=");
	dumpMem(&vec, sizeof(vec));
	printf("&vec[0]=%p\n", &(vec[0]));
	dumpMem(&(vec[0]), sizeof(int)*vec.capacity());
	vec.push_back(42);
	printf("&vec = %p; sizeof(vec)=%d\n", &vec, sizeof(vec));
	printf("vec=");
	dumpMem(&vec, sizeof(vec));
	printf("&vec[0]=%p\n", &(vec[0]));
	dumpMem(&(vec[0]), sizeof(int)*vec.capacity());
	vec.pop_back();
	printf("&vec = %p; sizeof(vec)=%d\n", &vec, sizeof(vec));
	printf("vec=");
	dumpMem(&vec, sizeof(vec));
	printf("&vec[0]=%p\n", &(vec[0]));
	dumpMem(&(vec[0]), sizeof(int)*vec.capacity());
	
	int a[5]= {2, 16, 5, 123, 20};
	printf("&a = %p; sizeof(a)=%d\n", &a, sizeof(a));
	printf("a=");
	dumpMem(&a, sizeof(a));
	printf("&a[0]=%p\n", &(a[0]));
	
	int b[3][4]= {{2, 16, 5, 123}, {20, 12, 53, 24}, {9, 0, 54, 26}};
	printf("&b = %p; sizeof(b)=%d\n", &b, sizeof(b));
	printf("b=");
	dumpMem(&b, sizeof(b));
	printf("&b[0][0]=%p\n", &(b[0][0]));
	printf("&b[0][1]=%p\n", &(b[0][1]));
	printf("&b[1][0]=%p\n", &(b[1][0]));
}