[英]C++ segmentation fault Structs
我才剛剛開始學習c ++,這是我對結構所做的第一段代碼,但是當我運行它時,我遇到了段錯誤。 我正在用g ++在Linux中編譯它。 誰能看到錯誤在哪里,我知道是什么導致分段錯誤,但我看不到是什么原因引起的。
所有幫助表示贊賞。
#include <iostream>
using namespace std;
struct people
{
string forename;
string lastname;
int age;
};
int main()
{
int num_numbers; //ask the user how many numbers the sequence will contain
cout << "Enter how people will be entered : \n";
cin >> num_numbers; // stores the user input
people peoples[num_numbers];
for(int x = 0; x < num_numbers; x++)
{
cout<<"Enter forename "<< x <<":\n";
cin >> peoples[x].forename;
cout<<"Enter surname "<< x <<":\n";
cin >> peoples[x].lastname;
cout<<"Enter age "<< x <<":\n";
cin >> peoples[x].age;
}
for(int i = 0; i<= num_numbers; i++)
{
cout << peoples[i].forename;
cout << peoples[i].lastname;
cout << peoples[i].age;
}
//delete[] peoples;
}
首先,這是:
people peoples[num_numbers];
是非標准擴展名。 其次,在這里:
for(int i = 0; i<= num_numbers; i++)
// ^^^^^^^^^^^^^^^
您超出范圍,因為大小為num_numbers
數組的索引從0
到num_numbers - 1
。
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