函数模板C++

// stl2.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

template <typename T>
void swap(T &a, T &b);
int _tmain(int argc, _TCHAR* argv[])
{
int a=10,b=30;
swap(a,b);
printf("%d,%d\n",a,b);
double c=12.23,d=34.56;
swap(c,d);
printf("%f,%f\n",c,d);
return 0;
}

template <typename T>
void swap(T &a, T &b)
{
T temp;
temp=a;
a=b;
b=temp;
}

// stl3.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include "iostream"using namespace std;template <typename T>void Swap(T &a , T &b);struct lab{char name[20];double salary;int floor;};template < >void Swap<lab>(lab &j1, lab &j2);void show(lab &j);int main( ){using namespace std;cout.precision(2);cout.setf(ios::fixed,ios::floatfield);int a=23,b=34;Swap(a,b);lab s1={"sundy",345.45,4};lab s2={"wendy",456.45,3};show(s1);show(s2);Swap(s1,s2);show(s1);show(s2);return 0;}template <typename T>void Swap(T &a,T &b){T temp;temp=a;a=b;b=temp;}template <>void Swap<lab>(lab &j1,lab &j2){int t;double t1;//j.name=j1.name;j1.name=j2.name;j2.name=j.name;t=j1.floor;j1.floor=j2.floor;j2.floor=t;t1=j1.salary;j1.salary=j2.salary;j2.salary=t1;}void show(lab &j){cout<<"name   :"<<j.name<<"  ";cout<<"salary :"<<j.salary<<"  ";cout<<"floor  :"<<j.floor<<endl;}