write interactive c++

christina_rules · 06-20-2006, 06:28 AM

hi. i hope i can get help to write an interactive c++ program that enables me to accept two arguments. one argument is source file and the other one is destination file. i've never done anything like this before. help. please. thanks

timmeke · 06-20-2006, 06:32 AM

What do you mean by "interactive"? Command line interaction? Graphical User Interface (GUI)?

Agrouf · 06-20-2006, 06:34 AM

int main(int argc, char *argv[])
{
char *source = argv[1];
char *destination = argv[2];

// put your processing here

return 0;
}

You can use getopt for advanced command line parsing and readline for interaction with the user (text mode).

Do you have more specific questions because frankly I don't get what you are asking for.

christina_rules · 06-20-2006, 08:52 AM

well i am asked to write an interactive c++ program that accepts two arguments using command line interaction. i'm suppose to get the source and destination file there and copy from one file to another. if user does not enter two arguments, an error message will occur. for instance, when i want to compile the program i use g++ prg.cpp -o prg then if i type only ./prg the next line, an error message will occur. it must be ./prg source file.

Agrouf, your codes

Quote:

int main(int argc, char *argv[])
{
char *source = argv[1];
char *destination = argv[2];

// put your processing here

return 0;
}

what is int argc for? thanks.

Agrouf · 06-20-2006, 10:58 AM

Is that homework?

Anyway, argc and argv go hand in hand together.
Read that http://www.aims.ac.za/resources/tuto...emory/main.php (found on google with "C main function").

You will need to use the fstream class. google for that for more informations. I'll be glad to help if you have specific questions.

sundialsvcs · 06-20-2006, 12:03 PM

Gotta be. Ask your teacher!

Dig a little bit... don't ask someone else to spoon the answer to you.

christina_rules · 06-21-2006, 04:13 AM

thanks. yeah it's homework. and i'm weak in programming. but thanks for the help

Tinkster · 06-21-2006, 01:07 PM

Moved: This thread is more suitable in <Programming> and has been moved accordingly to help your thread/question get the exposure it deserves.

And as other members already pointed out: don't expect people here to do
your homework; that's against the rules that you agreed to when signing up.