c++ - 没有重载函数的实例 "strcpy_s"与参数列表匹配

Question

出于某种原因，一个字符不能进入 strcopy_s();...

#include <iostream>
#include <cstring>

using namespace std;

struct DATE {
    int year;
    int month;
    int date;
};
struct Book {
    char name[50];
    char author[50];
    int id;
    DATE date;
};

int main() {
     Book book1;
     DATE date1;
     char bookName, bookAuthor;
     int date, year, month;

     cout << "Date Of Publishing? " << endl;
     cin >> date;
     cout << "Month Of Publishing?" << endl;
     cin >> month;
     cout << "Year Of Publishing?" << endl;
     cin >> year;
     date1.year = year;
     date1.month = month;
     date1.date = date;

     cout << "Book Name ? " << endl;
     cin >> bookName;
     cout << "Book Author" << endl;
     cin >> bookAuthor;
     strcpy_s(book1.name, bookName);
     strcpy_s(book1.author, bookAuthor);
    return 0;
}

给我错误:

Severity    Code    Description Project File    Line    Suppression State
Error (active)      no instance of overloaded function "strcpy_s" matches the argument list Struct  c:\Users\Amanuel\Documents\Visual Studio 2015\Projects\Struct\Struct\Source.cpp 38  

Severity    Code    Description Project File    Line    Suppression State
Error (active)      no instance of overloaded function "strcpy_s" matches the argument list Struct  c:\Users\Amanuel\Documents\Visual Studio 2015\Projects\Struct\Struct\Source.cpp 39  

Severity    Code    Description Project File    Line    Suppression State
Error   C2665   'strcpy_s': none of the 2 overloads could convert all the argument types    Struct  c:\users\amanuel\documents\visual studio 2015\projects\struct\struct\source.cpp 38  



Severity    Code    Description Project File    Line    Suppression State
Error   C2665   'strcpy_s': none of the 2 overloads could convert all the argument types    Struct  c:\users\amanuel\documents\visual studio 2015\projects\struct\struct\source.cpp 39  

Answer 1

正确。 strcpy 及其家族使用 char*，而不是 char。他们在 C 字符串上工作。而且您通常不能将 bookName 放入单个字符中。

也就是说，欢迎来到 21 世纪。我们现在使用 std::string，简单多了。