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General C++ Programming - August 2012 (Page 29)

How To Initialize static data members?

I'm getting another error when I try to compile. It's telling me I must initialize my static data member but when I try to do that it tells my only constants ma...

[5 replies] Last: god forbid if you need to think for yourself a little bit. (by closed account o1vk4iN6)

by thepanther

Error!

What is the error in this piece of code? vector< vector<int> > mat(5,5),crtLvl(25,2),nxtLvl(25,2); Error is : 28 expected constructor, destructor, or type co...

[1 reply] : Maybe it is the result that you neither specified nested nema as for e... (by vlad from moscow)

by aish sbg

output of printf("%d %d %d",a++,a++,++a);

how can be the output of following code 7 6 8 int a=5; printf("%d %d %d",a++,a++,++a);

[3 replies] Last: What i have read in a book that order of evaluation of arguments of a ... (by aish sbg)

by xwolf9100

Annoying Error

So I keep getting a million unresolved external symbol errors when I try to compile my program, I'll post all my code and the errors. tower.h: #ifndef TOWER...

[2 replies] Last: Maybe you should define your class tower as abstract. In this case its... (by vlad from moscow)

by maculhet

need help in doing something

i'm just starting to understand c++ and i need to make an image of 321 using "*" this can anyone help me? thanks

[3 replies] Last: for (int i = 3; i > 0 ; i--){ switch(i){ case 1:... (by RonSalm)

by RonSalm

convert (int) Dec to Bin

Hi, I working a converter from Dec to Bin (DEC) 5 == (0B101) must's: - writing Right to Left ( 0XF5 == 0B1111 0101 ) - compact as possible futu...

[3 replies] Last: Why not just print the bitset? #include <iostream> #include <bitset>... (by Cubbi)

by clanmjc

Compile Error in Template - missing ;

Normally this would be a quick fix, but this is really becoming frustrating and I need a fresh pair of eyes. This builds fine in the DLL, but when the test a...

[1 reply] : I fixed this by not including Filter.h and using it's base class, chan... (by clanmjc)

by LittleStudios

My classes are talking to each other correctly

I have a class (WavPlayer) with a member function fillBuffer(). BUFFER WavPlayer::fillBuffer(){ returnedData = wavReader.CreateBuffer(); return retur...

[4 replies] Last: If you're not sure where and why it is called twice, set a breakpoint... (by clanmjc)

by fstigre

Round down a int number in c++

Hi, How can I round down an int number in c++? What I want to do is basically round down a number, for instance I know that the my numbers are always goin...

[3 replies] Last: You guys are awesome! Thanks a lot. I'm always amazed about how quick... (by fstigre)

by EamonKerdoll

getting type from lambda c++11

Hi all, Is there any way of creating a variable which type is the result of some lambda expression. something like this doesn't work: decltype( (){return 1;}(...

[5 replies] Last: Yes! The lambda is just a way of evluating a closure, and since you ar... (by viliml)

by Volatile Pulse

Help me wrap my head around pointers and iterators. (1,2,3)

As a lot of you have seen before, I have issues understanding pointers. They just don't click for me. I understand the concept of memory location, I understand ...

[43 replies] Last: thanks, didn't really think about it, but I guess its because I'm usin... (by Zephilinox)

by mnasiriqbal

loading xml file from memory (hard disk)

I need help regarding how we can load xml file from loacal file system in C++

[5 replies] Last: thanks for the help of all you guys.... I have managed to parse xml us... (by mnasiriqbal)

by Zephilinox

SFML, can't figure out how to store a texture in a class

I'm trying to get my player class to hold its texture and sprite, but in this test I'm just doing texture, and it isn't working, some code has been commented ou...

[1 reply] : pfft, so every other thread gets half a dozen of replies and my sad l... (by Zephilinox)

by bigbadbear9885

fatal error LNK1120: 3 unresolved externals

I am a beggenner attempting to actually write C++ program (writing a text based RPG), I'm stuck with a error "fatal error LNK1120: 3 unresolved externals" and ...

[2 replies] Last: The bigger problem here is that you don't understand how coding in C++... (by Moschops)

by jageera

Arguements in throw

I have a doubt regarding the possible arguments in throw. As far I have read in Robert Lafore ,it gives only a basic idea about exceptions. I read that argume...

[1 reply] : throw can throw ANYTHING! It can be an exception class, a fundamental ... (by viliml)

by jsheuirjfjekk

Vector problem

Hi, i've been doing some programming for a while, and im using a C++ book that i've bought. But then i came to the "vector" part. i got stuck. In my book, it sa...

[5 replies] Last: Thank for everything! Jmadsen, you are those one of those guys who mak... (by jsheuirjfjekk)

by cniper

.exe file has stopped working windows trying to find solution

i am writing a program where i have to perform different operation using float arrays. here is my complete program: header file: //floatArray.h #ifndef FLOAT A...

[15 replies] Last: What does your whole program look like now? (by guestgulkan)

by coderire

kbhit problem

HI i wrote a program that terminates when the Crtl-C is pressed however it doesn't work.Can someone help me? the following is my code #include <cstdlib> #...

[4 replies] Last: Ctrl+C is ascii 3, did you try that? (by ToniAz)

by andrewtangchemistry

classes object oriented programming help

This program has a lot of errors how do I do it? The problem is to develop a billing system of a hostpital using a persontype base class There's the othe...

[1 reply] : To understand classes you need to understand encapsulation. The whole... (by Disch)

by xwolf9100

If Syntax error

I get two annoying if syntax errors when I try to compile my program. Here's the code that has the error void arrowtower::upgrade(const player &cplayer){ if ...

[1 reply] : player looks like a class name. cplayer is your object. so line 2 pro... (by Disch)

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