5i.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 12 行

// Swap()  Accepts two values as reference parameters
// and exchanges these values.
// 	IN/OUT: a, b -- When the function is called, these are
//	any values. When the function returns, the values 
//	referenced by a and b have been exchanged.
void Swap ( float& a, float& b)
{	float temp;
	temp = a;			
	a = b;
	b = temp;
}