如何根据其成员数据对结构/类数组进行排序,因为这会失败?
#include <iostream>
#include <algorithm>
#include <vector>
using namespace std;
struct O{
const string n;
int a=1;
};
bool bfunction (O a, O b) {
return a.n < b.n; }
int main () {
O m[]={ {"unta"}, {"jalan"}, {"sama"}, {"aki"} };
// using function in sort control
sort (m.begin(), m.end(), &bfunction);
}
海湾合作委员会给出:
error: request for member ‘begin’ in ‘m’, which is of non-class type ‘O [4]’
sort (m.begin(), m.end(), &bfunction);
^~~~~
error: request for member ‘end’ in ‘m’, which is of non-class type ‘O [4]’
sort (m.begin(), m.end(), &bfunction);
^~~~~
感谢真诚有用的帮助
最佳答案
使用std::array
#include <iostream>
#include <algorithm>
#include <vector>
#include <array>
struct O {
std::string n;
int a;
O(const char* c) : a(1) { n = c; }
};
bool bfunction(O a, O b) {
return a.n < b.n;
}
int main() {
std::array<O, 4> m = { "unta", "jalan", "sama", "aki" };
// using function in sort control
std::sort(m.begin(), m.end(), &bfunction);
}
关于c++ - 如何根据其成员数据对结构/类数组进行排序?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59624556/