Why it stops and finished with exit code 11?

Question

I don\'t know why it stops there and finished with exit code 11. It suppose to run until I give the command.

#include 
#include 
#i         


        

Answer 1

The problem is this part right here:

void record(string name, string phoneNum, int count){
    string Name[] = {};
    string PhoneNum[] = {};
    Name[count] = {name};
    PhoneNum[count] = {phoneNum};

    //...
}

That's bad in C++ because string Name[] = {}; and others like it don't do what you think they do. They create an empty array of strings. Since variable length arrays are not a thing in C++, this creates a buffer overflow, which is undefined behavior. That's bad.

Use a std::vector instead:

void record(string name, string phoneNum){
    std::vector<std::string> Name;
    std::vector<std::string> PhoneNum;
    Name.push_back(name);
    PhoneNum.push_back(phoneNum);

    //...
}

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P.S. There is another bug in your program. That is, Name and PhoneNum will get destroyed when the function exits each time. If that is intended, then fine. If you wish to keep a running list of records, that is bad. You can use a static variable to fix this:

void record(string name, string phoneNum){
    static std::vector<std::string> Name;
    static std::vector<std::string> PhoneNum;
    //...
}

Answer 2

Exit code 11 is not anything specific to the C++ standard. However, on Linux that code is generally used to represent a segmentation fault. Off the top of my head, I don't see anything glaringly wrong other than the fact that you never close the file after you write to it.