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Beginners - January 2014 (Page 36)

hi, i researched but couldnt find a definite answer to this: as far as i know when using ofstream to open a file for writing, all pre-existing contents get dele...

[2 replies] Last: thank you (by ardengo)

by AnaMota

Start with FLTK

I'm new with FLTK and I'm following the book "Programming-principles and practice using c++". I have done all the steps in D3 and D4, except for D4.4 because my...

[1 reply] : mmmm, AFAIK. that means you created the project as a GUI or Win32 G... (by nvrmnd)

by plasmanoid309

Stroustrup chapter 2 Draw()??

In the exercises at the end of chapter 12 the exercises call for drawing various shapes. There's nothing in the text of chapter 12 which discusses using draw()...

[11 replies] Last: Nullinfinity....it only seems hard at first. Try this: http://www.tech... (by plasmanoid309)

by chris7daly

persons name while loop

the name can consist of letters spces a single quotation mark and a single hyphen. if there is a illegal character the program will ask to re enter name. onl...

[3 replies] Last: Well those comparisons look mighty dodgy, but I think your problem is ... (by tipaye)

by fahmankhan75

String error

In the following code, I'm trying to figure out if the first letter of the string is vowel or not. So in my function, I'm using an if statement; however the pig...

[2 replies] Last: http://www.cplusplus.com/reference/string/string/find_first_of/ (by mobotus)

by alsade

const member implementation question

I have a class Pop3Adaptor with this decleration in the header file: class Pop3Adaptor { public: const char* User(const char* userId); }; how woul...

[4 replies] Last: You probably want to initialise it in the constructor. Take note of C... (by MrHutch)

by Ch1156

Can i initialize my variables in the constructor?

I have been initializing my variables in main, but i was wondering if i could initialize them in the constructor, is there a reason i would choose one way over ...

[18 replies] Last: bump. (by Ch1156)

by closed account iAk3T05o

Vector

Please can someone explain this code. I got it from the programming practice and principles book. #include <iostream> #include <string> #include <vector> ...

[10 replies] Last: Ok. Let me learn arrays. Thanks. (by closed account iAk3T05o)

by NullInfinity

lazyfoo SDL: Confused about how this SDL_Rect array is getting used in this animation.

http://lazyfoo.net/tutorials/SDL/index.php After about tutorial 10 or so he stops linking to pages describing his tutorials (because he hasn't completed his tu...

[2 replies] Last: Thanks Lumpkin! (by NullInfinity)

by aspic

Screen Problem

Im having a problem when i compiled my code..the code works but when i compiled it the screen only pops out / SDL screen only pop's up and immediately close.. i...

[1 reply] : Well your program is working perfectly fine, in that it's not actually... (by yulingo)

by sailorman444

warning C4554: '&' : check operator precedence for possible error; use parentheses to clarify precedence

I keep getting the error warning C4554: '&' : check operator precedence for possible error; use parentheses to clarify precedence when I try to run my program,...

[6 replies] Last: Thank you very much guys, when I called the function at the beginning ... (by sailorman444)

by alsade

Problem with implementation..

if i declare a member function in the header file like this: const char* User(const char* userId); whats the syntax for declaring it in the *.cpp file? ...

[1 reply] : It's just like how you would declare it if it were all in one file. c... (by long double main)

by alee4408

Input validation

So far I have been using while loops and do while loops for input validation. This is good for simple programs, but if I put in characters when I need a int or ...

[9 replies] Last: long double main thank you for the response. (by alee4408)

by Hergie

monsterHP

Hi folk! I recently started learning c++ and i love it! It's a great language. However, i'm having a problem with this little game i wrote. Instead of run...

[7 replies] Last: Thanks a lot guys! My code works fine now. I learned a ton from this t... (by Hergie)

by JohnJH

inherit from classes..

as far as i've understood, inheritance make it posible to inherit member from a class to a new class.. i've also heard something about specific inheritance due...

[1 reply] : A child class has all the parts and members of its parents. Always. ... (by Disch)

by JohnJH

Overload operator

I need to overload this operator for my class Car.. It should compare each attribute for the object, and cout the things which are the same. ex. ...

[7 replies] Last: It's generally how you overload an operator i am confused.. Using my... (by JohnJH)

by BlueBomberXTJ

Using function to store prime number vectors.

I was attempting to store prime numbers in vectors while using a counter. This code does nothing though. Is there a way to do this with the tools I'm doing? Wa...

[1 reply] : Each time prime is called, the previous result is lost, so you will o... (by tipaye)

by htrules1

void functions error

can anyone help me with the error in this...i cant seem to find it #include<iostream> using namespace std; void trapezoid(int, int); int main() { ...

[2 replies] Last: thnx @yanson (by htrules1)

by chris7daly

credit card details

Hi everyone, im trying to put in a 16 digit credit card with space or "-" after each 4 digits. the code works fine if I put in a correct 16 digit code... but if...

[5 replies] Last: thanks giblet I was maybe abit hasty in thinking it was done last week... (by chris7daly)

by q1670741824

why it still work when i initialize variables in the class declaration?

I know that there are only two kind of types can be initialized in the class declaration, which are enum type and static const interger type. But when I initial...

[2 replies] Last: Perhaps show the code in question? (by tipaye)

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