Calling default function in a class ??

[teaflavor]

So I need to find a if a string is subtring of a string. So I found out about this http://www.cplusplus.com/reference/string/string/find/.


The string I want to search is in a class. And I can't call the string::find? Any solution.

The code is like this:

function.h

#pragma once
class book
{
   char title[200];
   ....
   ..
public:
  ...
  ...
  void find();
};

function.cpp

#include<iostream>
#include<string>
using namespace std;
#include"function.h"

void book::find()
{
   char a[200];
   cin.get(a, 200, '\n'); 
   title.find(a);
}

It's not all the code, but the error is at the title.find(a). The error is:
error C2228: left of '.find' must have class/struct/union

[Moschops]

If you want to use the string object find function, you need to have an actual string object. You're using arrays of char. An array of char is not a string.

Here is how to make a string:

string a;

Here is how to use the string find function, on the string object:

a.find(title);

[MrHutch]

That's because you don't have a string class there. You have a char array.

char a[200];
string a;

[Shinigami]

You don't use string you use char. char don't have find() function.