c++课设 车辆管理系统出错，求高人指教

Question

请前辈指点，头痛啊！！！！！！！！

两个主要函数
void struck::read(){
fstream struckfile("struck.txt",ios::in|ios::out);
vector vec(9);

fun_substr(struckfile," " ,vec);

int i,j;
for(i=0,j=0;i<vec.size();i=i+9,j++){//vec.size实际使用大小

   c3[j].num = vec[i];
   c3[j].id = vec[i+1];
   c3[j].company= vec[i+2];
   c3[j].km = atoi(vec[i+3].c_str());
   c3[j].oil = stoi(vec[i+4].c_str());
   c3[j].cost= stoi(vec[i+5].c_str());
   c3[j].road = stoi(vec[i+6].c_str());
   c3[j].all_cost =stoi( vec[i+7].c_str());
   c3[j].kg = stoi(vec[i+8].c_str());

}
count_struck = j+1;
struckfile.close();
}

void fun_substr(fstream &file,string str_sep ,vector &vec){

int count =0;
string str = "";
string str_temp = "";
int pos = 0;
int sep_len = str_sep.length();
int i=0;
while(getline(file,str)){
    pos = str.find(str_sep);
    vec.push_back(str.substr(0,pos));
    str_temp = str.substr(pos+1,str.length()-pos-sep_len);
    pos = str_temp.find(str_sep);
        while(str_temp.compare("")&& (pos!=-1)){
        i++;
    vec.push_back(str_temp.substr(0,pos));
    str_temp = str_temp.substr(pos+1,str_temp.length()-pos-sep_len);
    pos = str_temp.find(str_sep);
    }
    vec.push_back(str_temp);
}

}

这里是源代码及课设要求，麻烦大家了，谢谢了。
真不好意思，还要大家下载查看。
http://pan.baidu.com/s/1dD0HPst

Answer 1

目测，c3[j]这个没有分配内存。