函數模板樣本（一）

標籤：

模板函數定義檔案function1.h：

#ifndef FUNCTION1_H#define FUNCTION1_H#include <cstring>#include <string>template <typename T>inline T const& max(T const&a , T const& b){    return a < b ? b : a;}template <typename T>inline T* const& max(T* const& a, T* const& b){    return *a < *b ? b : a;}inline char const* const& max(char const* const& a, char const* const& b){    return std::strcmp(a, b) < 0  ? b : a;}template <typename RT, typename T1, typename T2>inline RT max(T1 const& a, T2 const&b){    RT c = a < b ? (RT)b : (RT)a;    return c;}#endif // FUNCTION1_H

 

測試檔案main.h：

 

#include <iostream>#include <cstdlib>#include "function1.h"int main(){    int a = 10;    int b = 32;    std::cout << ::max(a, b) << std::endl;    std::string str1 = "hello";    std::string str2 = "world";    std::cout << ::max(str1, str2) << std::endl;    int* p1 = &b;    int* p2 = &a;    std::cout << *::max(p1, p2) << std::endl;    char const* s1 = "cat";    char const* s2 = "hat";    std::cout << ::max(s1, s2) << std::endl;    return 0;}

 

結果：

 

函數模板樣本（一）