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Jan 11th, 2009

How do I put a char array in a class???

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So I'm having trouble with classes today, I want to do something like

C++ Syntax (Toggle Plain Text)
#include <iostream.h>
using namespace std;
class Dummy{
char Name[256];
void setName(char nam){Name=nam;}
};
 
int main(){
char[256] temp;
cout << "Name?\n";
cin >>  temp;
setName(temp);
}
#include <iostream.h>
using namespace std;
class Dummy{
char Name[256];
void setName(char nam){Name=nam;}
};

int main(){
char[256] temp;
cout << "Name?\n";
cin >>  temp;
setName(temp);
}

I want something like this to store a char array in a class, but it never works, I've googled all this stuff and just cant find it, Help!

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Manutebecker

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Jan 11th, 2009

Re: How do I put a char array in a class???

c++ Syntax (Toggle Plain Text)
Dummy dum;
dum.setName(temp);
Dummy dum;
dum.setName(temp);

Comatose

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Taboo Programmer

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Jan 11th, 2009

Re: How do I put a char array in a class???

Try this. Comments added explaining the reason for change from your code.

(Toggle Plain Text)

#include <iostream>      // <iostream> is standard, <iostream.h> is not
#include <cstring>        //   need functions to work with C strings

using namespace std;
class Dummy{
char Name[256];

public:    // for main() to use a member function, it must be public
void setName(char *nam)       // arrays are passed to function as pointers
    {strcpy(Name, nam);}   // and char arrays are copied using string functions like strcpy()
};

int main(){
char temp[256];           //   the declaration char [256] temp is invalid
cout << "Name?\n";
cin >>  temp;
Dummy some_object;   //  non-static member functions act on objects
some_object.setName(temp);  // this is how non-static member functions act on objects
}

You also need to put some effort into interpreting and understanding error messages from your compiler. Your compiler would have complained bitterly about your code and, if you'd taken time to understand them, you could worked out the changes I've commented in red.

grumpier

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Jan 11th, 2009

Re: How do I put a char array in a class???

yeah I actually had it on a seperate pc and didnt ctrl v it onto here, rather quickly interpreted it, my bad, but thx a lot, and one last thing, I tried to add a function called

C++ Syntax (Toggle Plain Text)
char getName(){return *Name;}
char getName(){return *Name;}

However it only returns the first letter, god I fail

Manutebecker

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