//类模板特化
template <class T>
class A{
public:
A(){
std::cout << "T" << std::endl;
}
};
template <>
class A<int>{
public:
A(){
std::cout<<"int"<<std::endl;
}
};
//函数模板特化
template <class T>
int compare(T t1,T t2){
return t1<t2;
}
template <>
int compare(const char* t1,const char* t2){
//strcmp 按位用ASCII表进行比较，大于和小于只规定返回正数和负数，并没有规定一定返回1和-1
int flag = strcmp(t1,t2);
return flag;
}
//类模板的偏特化
template <class Tb,class local_allocator>
class container{
public:
container(){
std::cout << "general" << std::endl;
}
};
template <class local_allocator>
class container<bool,local_allocator>{
public:
container(){
std::cout << "specialize" << std::endl;
}
};
按我自己的理解(可能不太准确)，偏特化意思就是讲原来的某个特化类型替换为具体类型
int main() {
A<int> a;
A<double> b;
container<int ,int> c;
container<bool,int> d;
std::string str1 = "qwer";
std::string str2 = "dfffff";
std::cout << compare(str1.c_str(),str2.c_str())<<std::endl;
std::cout << "Hello, World!" << std::endl;
return 0;
}
输出结果为
image.png
