逆序输出字符串 print the array in reverse order

void ReversePrint(char* ch)
{
	if(ch == NULL)
	{
		cout << "NULL"<<endl;
		return;
	}
	int size = strlen(ch);
	for(int i = size-1; i >=0; i--)
	cout << ch[i];
}

void ReversePrint(char * ch) //recursion
{
	if(*ch == '\0')
		return;
	ReversePrint(ch+1);
	printf("%c",*ch);
}

void ReversePrintStringUsingStack(char* ch)//stack
{
	stack<char> s;
	for(int i = 0; i < strlen(ch); i++)
		s.push(ch[i]);
	for(int i = 0; i < strlen(ch); i++)
	{
		printf("%c ",s.top());//or cout << s.top(); reverse print
		s.pop();
	}
}