为什么我的模板专业化不起作用？

Question

代码

#include<iostream> 
using namespace std; 

template<int N> void table(int i) { // <-- Line 4 
    table<N-1>(i); 
    cout << i << " * " << N << " = " << i * N << endl; 
} 

template<1> void table(int i) {  // <-- Line 9 
    cout << i << " * " << 1 << " = " << i * 1 << endl; 
} 

int main() { 

    table<10> (5);     // <-- Line 15 
} 

期望输出

5 * 1 = 5 
5 * 2 = 10 
5 * 3 = 15 
5 * 4 = 20 
5 * 5 = 25 
5 * 6 = 30 
5 * 7 = 35 
5 * 8 = 40 
5 * 9 = 45 
5 * 10 = 50 

编译

$ g++ templ.cpp 
templ.cpp:9: error: expected identifier before numeric constant 
templ.cpp:9: error: expected `>' before numeric constant 
templ.cpp:9: error: redefinition of 'template<int <anonymous> > void table(int)' 
templ.cpp:4: error: 'template<int N> void table(int)' previously declared here 
templ.cpp: In function 'int main()': 
templ.cpp:15: error: call of overloaded 'table(int)' is ambiguous 
templ.cpp:4: note: candidates are: void table(int) [with int N = 10] 
templ.cpp:9: note:     void table(int) [with int <anonymous> = 10] 
$ 

为什么我的模板特被视为由编译器重新定义“？

Answer 1

因为它应该是：

template<> void table<1>(int i) 

，而不是

template<1> void table(int i)