could not deduce template argument for 'T'是怎么回事，哪位牛人帮下忙啊？

Posted 2023-02-15

下面这个程序：
#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>
using namespace std;
template <class T>
bool palindrome(vector<T>::iterator begin,vector<T>::iterator end)

vector<T> u;
vector<T>::iterator uit;
uit=u.begin();
copy(begin,end,uit);
reverse(u.begin(),u.end());
if(equal(begin,end,u.begin()))
return true;
return false;

class palin

private:
int a;
public:
// bool operator==(palin&) const;
void input(int);
;
/*bool palin::operator ==(palin&p) const

if(a-p.a==0)
return true;
return false;
*/
void palin::input(int m)

a=m;

void main()

int num[10]=1,2,3,4,5,5,4,3,2,1,i;
char str[10]="abcdeabcd";
palin Class[10];
for(i=0;i<10;i++)
Class[i].input(i+1);
vector<int> n(num,num+10);
if(palindrome(n.begin(),n.end()))
cout<<"Num is palindrome."<<endl;
else cout<<"Num is not palindrome."<<endl;
vector<char> s(str,str+10);
if(palindrome(s.begin(),s.end()))
cout<<"Str is palindrome."<<endl;
else cout<<"Str is not palindrome."<<endl;
vector<palin> c(Class,Class+10);
if(palindrome(c.begin(),c.end()))
cout<<"Class is palindrome."<<endl;
else cout<<"Class is not palindrome."<<endl;


编译出错：
E:\编程\20章14题\20章14题.cpp(50) : error C2783: 'bool __cdecl palindrome(generic-type-279,generic-type-279)' : could not deduce template argument for 'T'
E:\编程\20章14题\20章14题.cpp(54) : error C2783: 'bool __cdecl palindrome(generic-type-279,generic-type-279)' : could not deduce template argument for 'T'
E:\编程\20章14题\20章14题.cpp(58) : error C2783: 'bool __cdecl palindrome(generic-type-279,generic-type-279)' : could not deduce template argument for 'T'
Error executing cl.exe.
恳请高手帮忙。
palindrome是判断容器的元素是否回文的函数，如容器n与倒置后相等，故它回文，palindrome应返回true

参考技术A 先说说你的目的是什么把。我看问题还真不少。