please read.....

Hi,
what does this error mean???How can i solve it??
please help a newbie!!!!!

thanks.

constraint for this code: no character arrays allowed;string ONLY.

Code:

---

#include<iostream>
using std::cout;
using std::cin;
using std::endl;


#include<string>
using std::string;

int main()
{
 
 string time;

 int chk=0;
int x =0;
 cout<<"enter time"<<endl;
        cin>>time;

chk=time.find_first_of("1234567890");

if (chk!=-1)
{
        cout<<"error!please reenter"<<endl;
}
else if (chk==-1)
{
        cout<<"well done"<<endl;
        int x= atoi(time);// error on this line//
        cout<<x<<endl;

}
return 0;
}

---

this is the error:
error C2664: 'atoi' : cannot convert parameter 1 from 'class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >' to 'const char *'
No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
Error executing cl.exe.

Code:

---

#include <iostream>
using namespace std;

---

would be easier for a start.

the atoi(); function is in the standard library. So you have to include the <cstdlib> header.

kwigibo

Hi,

thanks for pointing out the header library,but still its displaying the same error message.
can anyone help me out?????
thankss..in advance.

Quote:

---

Code:

---

int x= atoi(time);// error on this line//

---

---

Change this to:

Code:

---

int x= atoi(time.c_str());

---

The problem is that atoi expects a const char*, not a std::string.

Hey,
Thanks Imov,its working nicely now!!Also my sincere thanks to kwigibo,for pointing a silly mistake.