Write the function printb() that takes a pointer to a 4 byte value and prints its binary representation (preceded by 0b). Here's the Skeleton code in C:

#include
	#include
	#include
	// gcc e4.c -g -o e4
	// $./e4 1
	// $./e4 2
	// $./e4 0.75
	void printb(void *p);
	int main(int argc, char **argv)
	{
	int is_int = (strstr(argv[1], ".") == NULL);
	if (is_int) {
	int v = atoi(argv[1]);
	printb((void*)&v);
	} else {
	float v = atof(argv[1]);
	printb((void*)&v);
	}
	}
	void printb(void* p)
	{
	// FIXME: Complete this function so that it will print out the binary
	// representation (preceded by "0b") of the content point by ptr.
	// After you finish it, please test it. Some examples:
	// $./e4 1
	// 0b00000000000000000000000000000010 or 0b10
	// $./e4 2
	// 0b00000000000000000000000000000001 or 0b1
	// $./e4 0.75
	// 0b00111111010000000000000000000000 or 0b111111010000000000000000000000
	// Leading characters.
	printf("0b");
	}