can you HELP my friend with her C++?

[gopunk]

#include <iostream.h>

const int MAXLENGTH=81; // The maximum credit card entry length

//Function Prototypes
int ValidateCard(char);

int main ()

{
char MyCredit [MAXLENGTH];
cout << "Please enter your credit card number for a fast and accurate validity check.";
cin >> MyCredit [MAXLENGTH];
cout << ValidateCard (MyCredit [MAXLENGTH]);
return 0;
}

that's the source code he gave me, i don't know C++, only C, so i can't help him that much. do you guys see anything blatantly wrong?

he says he's having trouble with his function prototype... can somebody show her how to make one for ValidateCard, whose input is MyCredit and returns a boolean value.

thanks!

 

[Mucman]

ummm... I see a function prototype, but where is the the function body? Also the type passed to the function should be char* right? She is passing an char array to a function that is the same as passing a char*.

 

[AUMM]

aren't C++ and C virtually the same? except for like the scanf,printf/cin, cout?

 

[singh]

The following code should compile. However, it will not link until the function ValidateCard is defined. And no, C++ is NOT C (though the converse may be true to some extent).

#include <iostream.h>

const int MAXLENGTH=81; // The maximum credit card entry length

//Function Prototypes
int ValidateCard(char*);



int main ()

{
char MyCredit [MAXLENGTH];

cout << "Please enter your credit card number for a fast and accurate validity check:";
cin >> MyCredit;

cout << "\nRESULT:";
cout << ValidateCard (MyCredit);
cout << "\n";
return 0;
}

 

[trmiv]

This has nothing to do with C++, but is this a guy or a girl? You changed a few different times during the post. Started as a girl, then to a guy, then back to a girl. Which is it!!

 

[PrincessGuard]

<< aren't C++ and C virtually the same? except for like the scanf,printf/cin, cout? >>



They are similar in syntax but C++ is object oriented, which is an entire world of difference far beyond cout/printf.

And bool is a valid C++ type, so
bool ValidateCard(char* p);
will work.

 

[JMaster]

One time in freshman year there was this guy that never came to class and the day before the programming project was due, he shows me his code:

#include <iostream.com>

LMAO!!!!

 

<< can you HELP my friend with her C++? >>





<< he says he's having trouble with his function prototype... can somebody show her how to make one for ValidateCard >>



Him or her?

 

[Static911]

wow, sammyson is on top of the game

good job on the sex discrepency

static911

 

[Jfur]

he/she is clearly a hermaphrodite

 

[GoldenBear]

If it's a girl I want a pic.

If it's a guy I want a pic of his girlfriend/sister.

 

[gopunk]

ah you guys caught me.... it's a her but i changed it to a him so that i wouldn't be chastised for not putting a pic there

i don't have any recent pics of her, sorry guys.

 

[SunnyD]

char * for the prototype - or at least char [].

SunnyD

 

[habib89]

i have no idea how to program, but can you figure out what sex your friend is?

 

[fr]

Are you going to take credit for this?

 

[gopunk]

huh? like for the help you guys are giving? no, i was on the phone with and she was tearing her hair out so i was like "here, my buddies can help you".... i emailed her a link too. so rest assured, due credit is being given

 

[Descartes]

<< ah you guys caught me.... it's a her but i changed it to a him so that i wouldn't be chastised for not putting a pic there >>



Riiiiiiiiight. In reality, this is really you, but you offered up the idea of helping your friend as you didn't want to feel embarassed if the solution to the problem was really simple.

 

[gopunk]

lol, and i'm a he/she

actually i will be taking C++ starting this monday. yay! lets hope i kick ass like i did in C.