9iv.cpp

来自「《C/C＋＋程序设计导论（第二版）》一书的程序源文件」· C++ 代码 · 共 15 行

// Order()   Accepts two strings and swaps them if not in order
// ASSUMPTION: Both string parameters have been assigned by the 
// caller.  Returns the shortest of the two.

string Order (string& first, string& second)
{	string temp;
	if (first >= second)
	{	temp = first;		// swap if not in order
		first = second;
		second = first;
	}
	if (first.length() < second.length()
		return first;
	else return second;		// return shortest
}