General C++ Programming - C++ Forum

by ASid

Design Question - Choice of container

Hello all, I am working on an assignement where i have to collect objects in a container. I will ...

[3 replies] Last: That's quite alright. The fact that you showed enough insight to give... (by jsmith)

by ModShop

new/delete operators on class

I am making a shooter game where there will be lots of bullets. I know there is a way to use the ne...

[5 replies] Last: Thanks! Those pages are really helpful. The Flyweight pattern also loo... (by ModShop)

by kraigballa

Question about reading from Binary I/O file

This code works fine. I don't know what I can do in order to display the entire file. As you can see...

[15 replies] Last: Basically, yes :) (by simeonz)

by amccorm

dynamic functions

Hi guys, I want to call a function that returns a function. I can use syntax like float (*GetP...

[3 replies] Last: There is also boost::lambda. The syntax is slightly different. You m... (by jsmith)

by dtw103184

Any ideas on how to get an average with a loop

working on this problem and not sure whats wrong with my program trying to geting to compute an avg ...

[4 replies] Last: NM fixed it woohoo (by dtw103184)

by ricomoss

error: invalid application of 'sizeof' to incomplete type

I'm running into an error when trying to update legacy code. Small Portion of Code: if (W...

[4 replies] Last: I understand what went wrong. Thank you. (by ricomoss)

by chess

checking string (1,2)

How can I check that string name has at least one char, and has no char other than letters and hyphe...

[23 replies] Last: Thanks, simeonz. No more questions as yet. (by alfa333)

by neil86

pointers to vectors created outwith classes

I have set up a piece of code where I am declaring a 2 dimensional vector of ints using the followin...

[2 replies] Last: Now that's a word I'd never seen before (outwith). Google says it mean... (by filipe)

by r englund

retrun "jumps" up to a line above

Hi I have this weird problem in my code. The code looks like this template<typename T> Image<...

[4 replies] Last: OMG, that embarrassing, I should have noticed that. Thank you very... (by r englund)

by picci

Using C++ Macro with arguments into a linked piece of code

Hi all, i have a macro that i use to speed up the implementation of Factory classes. For example, t...

[1 reply] : It's impossible to say without seeing the definitions of the macros. (by kbw)

by lacrim

I/O possible

#include <modbus.h> void main(int argc, char *argv ){ int device = Mb_open_device("/dev/ttyUSB0...

[4 replies] Last: I'm using an older version of libmodbus actually, so i'm not used to t... (by bartoli)

by sirmark

How to copy bmp 8bit file

hi all! I'm trying to: 1. read a bmp grey scale 8 bit file image, and extract data matrix 2. cr...

[4 replies] Last: I have found the problem, it's the palette. In the copy.bmp file ther... (by sirmark)

by nlnvcd

inheritance question

class Base { public: virtual bool foo(){ return false; } void something { bool...

[4 replies] Last: Given your code class Base { public: virtual bool foo(){ retur... (by onur)

by andyn77

Problems with char*

I have this function that puts characters into a char* until it reaches a empty space or invalid cha...

[1 reply] : C-style strings have to be null terminated (with a '\0' or 0 character... (by Disch)

by sparcer

C++ Homework assignment Movie Recommendation

So far i have it right but I must wait to produce the output until after the loop. Inside the loop,...

[10 replies] Last: Thank you so much for your time and help. I finally figured the pr... (by sparcer)

by jingoria

Scanning for input in a char array and popping out

Hello everyone, I have a program written where a user inputs several type of OS processes with tim...

[no replies]

by Deathly

Peculiar Memory Usage

Is there something going on under-the-hood that I am unaware of? Why does this happen? #includ...

[8 replies] Last: C++ must compile to executable form on numerous platforms (CPUs and op... (by PanGalactic)

by angelofsloth

optimisation of the program to reduce time of program

hi i was wondering if someone can give me some ideas of how to reduce the time it takes for the prog...

[1 reply] : Consider using a std::deque<std::string> to hold the list of words rea... (by jsmith)

by DMEW

Making a timer in C++ using child process

I am making a timer for a game in c++. i fork a child process that sleeps for 60 seconds and then se...

[3 replies] Last: You can use non-blocking I/O, or you could use select() on file descri... (by jsmith)

by viknesh316

MFC Dialog Based - GUI modification with text file

have been given a task to rework a IO GUI. The available 32 Bit have already been prelabelled. B...

[no replies]

General C++ Programming - February 2011

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