n00b c++ code

[kaotic]

just learned how to write and retreive files in c++
:cool:


//philip
#include< iostream.h >
#include< fstream.h > //neccesary for writing files

void main()
{
//variables
char userName[25];
int age;
ofstream outfile;

cout<<"Enter Your Name: ";
cin.get(userName, 25);
cout<<Enter Your Age: ";
cin>>age;


outfile.open

("c:/windows/desktop/NameAge.txt", ios :: out);

if(outfile) //check for error
{
outfile<<userName<<endl;
outfile<<age<<endl
outfile.close();
}
else //file not open
{
cout<<"A fatal error has occured please curl up and die. \n";
}
}



edit--> why wont it show al the code?

[c0ldfusion]

why do u use:

ofstream outfile;
and then:
outfile.open("blah[..]", ios :: out);

i mean, you've declared the variable 'outfile' as being an ofstream class type, which is a class derived from fstream, specially for writing in a file...

[kaotic]

that is where it writes the file to




outfile.open

("c:/windows/desktop/NameAge.txt", ios :: out);

the code is to make a new file on the desktop and open it




outfile<<userName<<endl;
outfile<<age<<endl;

then this command takes the variables that the user entered
and writes them to the open file


outfile.close();
and of course this command closes the open file

[c0ldfusion]

oh, and one more thing: if you include the fstream header it's not neccessary to also include iostream.h, because the fstream header uses the iostream.h, so it will include it automaticly...

[c0ldfusion]

know what i mean ? :)

[kaotic]

shiat, i didnt know that
ill try that out lata
thanks man
save me at least 2 or 3 seconds of typing

[c0ldfusion]

in order to be a good programmer, u must know EVERYTHING... so i said u should know that.. one thing from me, one thing from somebody else....

and anyway, the thing with iostream and fstream it's a basic thing... any begginer knows that...

[ask]

There is no point of not including in iostream.h

All header files should have #ifndef #define so you aren't including it twice. Not including it in just makes your code more difficult to maniupulate. Say you remove fstream, and use a diffrent header file for file manipulation that dosen't include iostream?

Its dumb not to include in everything your program relies on.

[c0ldfusion]

you are right in a way... but i thought Kaotic should know about this thing... that's all

and anyway, when you're writing a program, either you use file manipulation, either you don't... before you write a piece of code, you make some plans like 'what is this program going to do and so on'...

anyway (again), it's no use to talk about #include, i just gave Kaotic some information, his real problem is something else, right?

[kaotic]

thanks for the advice homies

[c0ldfusion]

heh... no problem... :)