find something with a keyword(fast plz)

[dana267]

i wanna read a file .txt and show wich lines have the word searched for what should i add to my program?

#include <iostream>
#include <fstream>
#include <ostream>
#include <conio.h>
using namespace std;


int main()
{
    char a;
a='a';
    ofstream danainkare;

    danainkare.open("file.txt",ios::out | ios::app);

    cout<<"DVD or CD?"<<endl;

   while(a!=13)
   {
           a=getch();
           cout<<a;
        danainkare<<a;
}

    danainkare<<"-";
    a='a';
    cout<<"please write the authors name:"<<endl;
    danainkare<<"author:";

    while(a!=13)
   {
           a=getch();
           cout<<a;
        danainkare<<a;
}
    danainkare<<"-";
    a='a';
    cout<<"please write genre:"<<endl;
    danainkare<<"genre:";

     while(a!=13)
   {
           a=getch();
           cout<<a;
        danainkare<<a;
}
    danainkare<<"-";
    a='a';
    cout<<"please write the year of release:"<<endl;
    danainkare<<"year:";

     while(a!=13)
   {
           a=getch();
           cout<<a;
        danainkare<<a;
}
danainkare<<endl;
cout<<"if you wanna retrieve type yes if not just press the enter button";
a='a';
int i=0;
while(a!=13)
{
    a=getch();
    if(a=='y')
    i++;
    if(a=='e')
    i++;
    if(a=='s')
    i++;
}
if(i==3)
{
    cout<<"type the author you wanna search";


    }

    
}
    return 0;
}

[Caleb9849]

You might find string member functions like "find" useful, they can be read about here:

http://www.cplusplus.com/reference/string/string/

Beyond that, it's mostly a matter of knowing basic C++ syntax, which it looks like you already do judging by what you've already written.