General C++ Programming - C++ Forum - January 2010 (Page 10)

by mIXpRo

c++ memory allocation

is there something similar in c++ to realloc in c ?

[4 replies] Last: You also have the allocator class although I'm not sure if that's what... (by tummychow)

by Infernochaos

Using 2 variable as conditions?

I just started C++ 1 week ago and i was wondering what is the correct syntax to use 2 variable as co...

[6 replies] Last: @PanGalactic : THX!! That's exactly what i needed and also thx to all... (by Infernochaos)

by paul23

functors, and changin them "on the run"

Well let me first show the code: #include <iostream> #include <functional> #include <cmath> cla...

[3 replies] Last: Close but don't forget the reference/pointer part--it is the key. H... (by moorecm)

by haraz471

matrix looping//

i have this problem programming i dont know how to start,,, our teacher asked us to make a program t...

[1 reply] : Use two nested for (by Bazzy)

by jonnyw

How to split a byte into bits so you can check whether bit X is 1 or 0

Hi everyone, Can someone please explain to me how can I split a byte into separate bits? I wa...

[1 reply] : unsigned char byte = something; bool fiftDigitIsOne = byte & 16 // 1... (by Bazzy)

by jrohde

Thread Priority Question

Hello all, Just curious about the nature of thread priority. I currently use Win32 threads, but ...

[4 replies] Last: 1. It does matter what priority your thread has. Does it? When all ... (by ktoto256)

by Nikhar

Suggest a good tutorial for graphs in c++

Hi... I'm trying to study graphs but I cant find a good tutorial on it. I googled it, but couldn'...

[1 reply] : Oh, btw I'm using XP and the compiler is Code::blocks. (by Nikhar)

by n4nature

reserve() in vectors

int main() { vector<int> v1; v1.reserve(100); } Does "v1.reserve(100)" above actual...

[3 replies] Last: Constructors are not called. (by helios)

by rey

source code assistance pls

Need your kind expert advice. I have to come out with a programme in C++ but I have no idea how to m...

[2 replies] Last: ok noted. (by rey)

by rijaalu

print empty screen when i compile.

Hello can some one help with this code . when ever i run this code it will print Teacher: pre...

[2 replies] Last: As far as I can tell the code is working just fine, you're creating a ... (by Warnis)

by yag

Which C++ compiler to use?

I have Windows vista OS and i want C++ compiler to work with. Please suggest which one i can downloa...

[13 replies] Last: Well if you are really serious try actually buying a piece of software... (by kevinkjt2000)

by phaethon

PCI Express I/O

Newbie here.. was hoping someone could give me some information on how to conduct reads/writes acros...

[2 replies] Last: I'm not actually a C++ newbie, just a newbie to this forum :-P My exp... (by phaethon)

by Leomond

Creazy Behavior

Ok, this code is executes around 6 hundreds times at the start of the application, as it's related t...

[3 replies] Last: Just blind luck, I guess. Everything would work out fine if the next ... (by moorecm)

by gipark

memory problem on 3D array - segmentation fault

I want to make a big 3D array called u3d, so I declared it with the following sentence: nx=4096...

[2 replies] Last: Dynamically allocate the array. Depending upon the OS you'll have com... (by iharrold)

by Bazzy

Odd Constructor Syntax

I've found out that on g++ the following code compiles: struct Foo { ****const****const***...

[4 replies] Last: I like playing with things ( until I eventually break them... ) So I'... (by Bazzy)

by majidkamali1370

reading from ports.

Hello. What is "inport(int portid)" in conio.h ? How it works ? What is portid ? Thanks.

[1 reply] : Computers communicate with external devices (printer, keyboard, intern... (by Duthomhas)

by slavik262

conveting jpeg in memory buffer to bitmap

Hi all. I’m in a robotics program (FIRST Robotics) and my team’s robot has a webcam attached to...

[1 reply] : Hello slavik262, When working with webcams a very good library... (by Leomond)

by billinares

.lib & .a extensions

Hello Does anyone know the difference between libraries with .lib and those with .a extension? ...

[1 reply] : The .a is almost certainly a static library. It's a Unix convention. ... (by kbw)

by closed account S6k9GNh0

TinyXML

I can't tell if I'm not getting the grand idea from XML or what but I'm confused as hell. I spruced ...

[5 replies] Last: Look into boost::spirit. I'm pretty sure there is an example program ... (by moorecm)

by sebas

problems with calloc

Hi everyone! I'm trying to allocate memory for a matrix. I know the standard calloc use e.g do...

[2 replies] Last: Thanks jsmith! Now I see the point. (by sebas)

General C++ Programming - January 2010 (Page 10)

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