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General C++ Programming - July 2013 (Page 16)

How do you do the input validation for date? I used: char rec.date ; cout<<"date"<<endl; cin.getline(date,SIZE); I want the user to write in this fo...

[3 replies] Last: http://www.cplusplus.com/forum/general/106395/ (by ats15)

by puppymew

Input validation

Hi. How do I prevent user from entering characters or symbols instead of numbers? int num; cout<<"Enter a number."<<endl; cin>>num; Also, how do I prevent...

[9 replies] Last: I know for a fact that this code works, because I just tested it. d... (by Thumper)

by ajh32

communicating with web service via SSL via proxy server

I am attempting to communicate with a web service using SSL i.e. port 443 via a proxy server. I can create a socket and open a connection to the proxy server b...

[no replies]

by chawki

mathematical form

hello, I try to develop this form: RTTbarre(k)= lambda*RTTbarre(k-1)+(1-lambda)*RTT(k) RTTbarre(k-1): is the previous filter calculates RTT(k) RTT(k)is calcul...

[no replies]

by zerohour

Hopefully this helps in parsing decimal numbers..

I've seen a lot of posts around the net about parsing decimal precisions. The problem is everyone wants to use atof or atod, which while faster produces inaccu...

[1 reply] : [quote=zerohour ]The problem is everyone wants to use atof or atod, wh... (by TheIdeasMan)

by speedbird

Rounding Numbers to hundreds

Hi everyone, I have made a random number generator to create a number between 1000 and 9000, but I always get numbers with many 10s and units. I want to roun...

[4 replies] Last: Thanks, it worked. (by speedbird)

by Sofia29

random deck-card selection

I'm writing a card game and I'm having trouble getting the first part of it right, which is picking out a random card from the deck and displaying it to screen....

[1 reply] : Hi Sofia29, You probably need to seed the random generator, as per th... (by TheIdeasMan)

by janluca91

LinkedList

Hi, I am trying to implement a simple Linked List. When I declare the class DbLinked, the compiler give me an error:2 \progetto1\main.cpp required from here ...

[2 replies] Last: It would be better if you would define inside DbLinked some internal c... (by vlad from moscow)

by puppymew

combine inputs

How to combine the if statements? cout<<"Enter a sale number"<<endl; cin>>rec.sale; if(cin.fail()) { cout<<"Enter a number"<<endl; cin>>rec.sale; ...

[13 replies] Last: Thank you!!!! (by puppymew)

by Johnny111111111

irrkland Question

output: D:\Pictures\CustomStory\main.cpp|26|error: 'createIrrkLangDevice' was not declared in this scope| #include <irrklang.h> #include <windo...

[1 reply] : I would guess that createIrr kL angDevice() is a typo (by coder777)

by herrybiscuit

Issues with code-blocks and opengl

What i'm trying to do is create a 3d game engine with opengl and i want to be multi platform. I'm trying to use code-blocks for this reason but i'm having troub...

[1 reply] : OpenGL on its own does not have a single crossplatform way to set up a... (by Disch)

by Nathan Justice

Board not printing correctly.

Hello. I'm writing a version of the classic Snake game. However, my board is not printing correctly. The right hand border is in the incorrect location. Also, w...

[5 replies] Last: why keep the border in the same array? you can just hardcode the borde... (by Paoletti301)

by closed account Dy7SLyTq

SDL_image.h help

So im wanting to make a program in sdl and im learning on lay foos site. evreything was working fine until lesson 3-4 (im using windows/code::blocks/mingw btw) ...

[13 replies] Last: ty sorry for bothering you fred. probably shouldnt code at one in the ... (by closed account Dy7SLyTq)

by ZivHirsch

Remove digits in number

I know how to remove digits in number from right to left. For example: the number 319. If I do (number /= 10), I get 31. My question is how can I remove digits...

[15 replies] Last: ok.. thanks JLBorges! (by abhishekm71)

by closed account 98qiz8AR

Pointers

I have passed an array called originalname to the reverseWithPointers function below using a pointer and I have returned output from this function to the main p...

[5 replies] Last: void reverseWithPointers(char *originalname, char *reversedname2) { ... (by closed account 98qiz8AR)

by tee360

Complex problem (Friends, Overloaded Operators, and Arrays in Classes)

I'm not sure if I'm violating by posting my question before I finish my futile attempt at it, but in attempt to not waste too much time, here goes: Imagining...

[12 replies] Last: I believe I've fixed 2 out of 3 perceived problems (of course there ma... (by tee360)

by TheBeardedQuack

C# and Javascript Tutorials for Unity3D

Found out that Unity3D now offers a FREE and fully commercial licence so I've got myself a copy but unfortunately it only uses C#, Javascript or Boo scripting.....

[3 replies] Last: A c/c++ programmer would find using unity c# very easy, its a very wel... (by vas90)

by Johnny111111111

Another GLUT Question?

Why dosent this light my cube up? #ifdef __APPLE__ #include <GLUT/glut.h> #else #include <GL/glut.h> #endif #include <stdlib.h> float yup = 0.0f...

[no replies]

by closed account Dy7SLyTq

how to build an smtp mail client?

i have four email adresses (for various reasons) and i could probably find a client for all three on source forge, but i thought it would be good practice to us...

[2 replies] Last: thanks (by closed account Dy7SLyTq)

by Johnny111111111

GLUT

This is supposed to make a cube, and then color the cube, and color the background, the background gets colored, but the cube is no where to be seen, and there ...

[1 reply] : Your pen is the same color as your paper Your drawing is too big (by ne555)

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