Thread: Questions on Character Pointers and Arrays

I just wanted to clarify about Character pointers and Arrays. Sorry for asking so much in one post but they are very short questions.. Thank you!

Code:

int main()
{
	char *p="FIVE";     

	char k[]="FIVE";    
	
	cout << p << endl; 
	cout << k << endl;
}

1. Why is *p='s' invalid while k[0]='s' valid?

2. The double quote on the word FIVE means that the character pointer and the array ends with a NULL character. Right?

3. cout in this case just works like printf("%s", p) and printf("%s",k) right?

Code:

int main()
{
	char *colour;

	colour=new char[1];
	colour="Black";

	cout << colour <<endl;
}

4. "Use dynamic memory allocation for colour."-This was the instruction given in my assignment. But I don't really know what it means. Does the above code satisfy the instruction given?

5.

Code:

int main()
{
	char *p="FIVE";

	char k[]="FIVE";
	
	char *s;

	s=p;
	
	strcpy(s,"WOW");
	


	cout << s << endl; 
	cout << p << endl;
}

The above code compiles fine but shows an error when running the program. What I know: p contains the address of the character 'F'. This address is assigned to s.