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Beginners - November 2013 (Page 5)

I have some data in 10 different files. col1 of each file contains ID. Same ID may be in 2 or more files. Now I have to add the data in all 10 files based on ID...

[6 replies] Last: by reading the links in Chervil's post. (by mutexe)

by clankill3r

is this correct usage for a smart_ptr

I was wondering if the following code is correct. void ofxDGlobalTangibleList::addTangible(ofxDTangibleBase *t) { shared_ptr<ofxDTangibleBase...

[no replies]

by q1670741824

an interesting phenomenon about "cout", could anyone tell me why?

Let's see the code first. struct box { int a; }; const int shishi(int *); const box & hey(box &); int main() { int hello = 3; cout << shishi...

[3 replies] Last: It's not about cout, it's about expression evaluation. 1. The order i... (by Cubbi)

by hossamkabeel

encrypt/decrypt

how to make • The application should allow to input some plain text • The application should implement a type of encryption algorithms • The user shoul...

[1 reply] : what have you got so far? (by mutexe)

by q1670741824

Why assign const reference to non-const variable can't be displayed.

in main function, r can be displayed by cout, and when as a parameter assigned to const double &x, it just can't be displayed. only when type matched works. ...

[6 replies] Last: and I finally find the problem, because ref is a class name or somethi... (by q1670741824)

by nir2

bulls and cows algorithm

hello people... i've been asked to make a program of the game "bulls and cows". before you shout at me, i know there is a lot of stuff in the net but i got co...

[3 replies] Last: The algorithms you saw online were probably for using numerals 0-9, wh... (by Mats)

by RabMac

Question about member functions

Hi, I am trying to learn about classes and have been rewritting some of my old programs but instead of using functions, I have started to use classes. Bel...

[5 replies] Last: I tend to use the member variable directly. (by mutexe)

by ynooran

Prime with arrays please help!

Hello I,ve written this program that can calculate any Mersenne number. The problem is that when I run it and tell it to calculate M6972593 it takes way too lo...

[2 replies] Last: Or as an alternative to const double ten_pow = pow(10, 18); maybe ... (by Chervil)

by entchen

sscanf *.unv file

Hallo, ich habe ein Problem. Und zwar will ich ein .unv file einlesen in C++ mit sscanf. Das geht auch soweit gut. Aber nun befindet sich im .unv file ein ...

[1 reply] : Leider weiß ich nicht, wie genau diese getrennt sind, ob mit tab ode... (by coder777)

by JakeTheHuman

fstream: changing only certain values

I have been making a program that will help me a bit with my game development diploma. I have been writing a small console program where you can edit the stats ...

[1 reply] : This is the wrong way to ask for help. A wall of text containing noth... (by Catfish666)

by KamKan

WARNINGS.. don't ignore.

warning C4102: 'pass' : unreferenced warning C4101: 'choice_by' : unreferenced local variable warning C4101: 'input' : unreferenced local variable what's...

[1 reply] : Unreferenced means not used. You declare some variables, reserve space... (by JockX)

by Vilja

TheNewBoston or CodingMadeEasy?

Hello! I've just started learning C++, and I'm looking for a complete series of tutorial videos which teach C++. I've searched YouTube and narrowed the resul...

[3 replies] Last: Sorry for the delayed response. Watch the playlist "C++ Made Easy HD".... (by CodingMadeEasy)

by miladam

calculate determinte

i wrot this program to calculate determinte of matrix(n*n).plz tell me my mistake and how can i fix them? #include <iostream> using namespace std; ...

[3 replies] Last: @ mancool1112 Why not? Why did you bother posting if you aren't going... (by Duthomhas)

by Ala888

Help with WinMain()

Hello, I need to use WinMain() instead of main in order to utilize SW_HIDE function that it offers so I dont have to see a flashing console every time I start u...

[6 replies] Last: actually its an updater for a game im making, and I just need it to ru... (by Ala888)

by KamKan

Grocery Program, deleting & searching records and password inputting.

I am creating a grocery list program for buyer and seller. i don't know how to search and delete records when you're a seller. and the program won't let the sel...

[6 replies] Last: @mobotus your code runs, but it doesn't do the delItem(); function and... (by KamKan)

by nathanward4739

what's the undeclared identifier here?

I am writing a simple for loop on my Mac with Xcode, and I've seem to run into the problem of (of course, very noobish probably) an undeclared identifier. Could...

[2 replies] Last: OH right! I completely overlooked the fact that I didn't represent wha... (by nathanward4739)

by Bamaut

Basic structure question

Hey guys, brand new poster here. So I was assigned to create a .h file containing the structure definition for a student to be used with code my professor prov...

[8 replies] Last: struct address { char street ; char city ;// added city member cha... (by naraku9333)

by alogedro

Question about switch statement

Hello! I am new to c++ programing. I made the following code and the compiler replied that "error: switch quantity not an integer". Can anyone please help to id...

[4 replies] Last: If you were going to do it that way, wouldn't you need 26 variables to... (by Garion)

by paiyaku

Need help with my C++ code

I can't figure out what is wrong with my code at case 3. I have posted the output I'm getting below when I choose option 3 from the menu I created. ...

[2 replies] Last: What are you trying to do on line 12? My guess is that Popnum is not c... (by ats15)

by slidn240

Array program

I have been working on this program as homework and cannot figure out why it will not execute. Any help would be much appreciated. #include <iostre...

[1 reply] : No function prototype for getLowestGrade Prototype: int getLowest... (by mobotus)

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