General C++ Programming - C++ Forum

return value from extern "C" not right

I am using Red Hat Linux. I have two directories: ~/GetOneHundred ~/GetOneHundred/ReturnOneHundred In ~/GetOneHundred/ReturnOneHundred, I have three files...

[2 replies] Last: So that the header file may be included by both C and C++, I often do ... (by moorecm)

by dandeliondream

output number to screen 20 numbers per min

how do i generate random number and output them on screen 20 numbers every 1 minute I know how to generate random number but how do i control the number of t...

[2 replies] Last: thank you! (by dandeliondream)

by luke nffc

Iterate through STL list

I need to browse the elements of my STL list. I know the iterator will need to be incremented, but could anyone clarify what steps to take?

[2 replies] Last: I recommend doing this instead. for (std::list<int>::const_iterato... (by kempofighter)

by ohsnap1319

Converting to base 2!

Hello Everyone! I am currently trying to use bitwise operators in a program of mine for school. However I am unsure on how to convert a number such as 22 fro...

by artmansoft

Convert new to malloc

Hello all, I have a struct called GFSPPair. I made a reference to a GFSPPair instance called "pair" by: GFSPPair *p_pair = new GFSPPair( pair ); It wor...

[10 replies] Last: Ah you're right he did say that didn't he. So yeah. You don't need... (by Disch)

by brnksk

conditional Linked List

i've find a way to add and del node with FIFO method here it is void add () { node *temp, *temp2; temp = new node; temp->next = NUL...

[1 reply] : I don't seem to grasp your problem... Could you explain a little bit m... (by attaboy)

by agoswami

Preventing delete same pointer twice

Hi, if I want to prevent the delete the same pointer. could you please suggest solution int main() { int *p,*q; p=new int; q=p; de...

[5 replies] Last: +1000 for Boost There's a reason parts of it are being adopted into... (by closed account 1yR4jE8b)

by xeroxface

Problems with classes and dynamic memory allocation

I'm in the process of writing a student database that reads in student data from an input file and refers to data in the program by using a base class pointer t...

[3 replies] Last: I've found it, turned out to be a rookie (and annoying) error in think... (by xeroxface)

by agoswami

getting exe in linux

Hi, can we get exe in linux after compiling the cpp program. AS far I know when we compile cpp program through g++ we always make binary .Please coorect me if...

[7 replies] Last: I think you'd have to build it from source using a custom configuratio... (by Bazzy)

by walapu

Increasing Integer

Hey guys, would any of you know how to make a integer increase by 1 every 2 seconds? Then have it start over at 50?

[6 replies] Last: That wasn't funny, firedraco... *bursts out laughing* Seriously, th... (by Albatross)

by Renascent

Comparing stacks and queues to determine if they're equal.

I've just got a quick question regarding this--specifically, my algorithm. Is there a flaw in it, or is there an easier way to compare the two? Basically, th...

[2 replies] Last: Err...that was kind of my algorithm in the first post. It's all of tho... (by Renascent)

by safirom

hour modification

Hello, I need to know if there is a function to modify the hour or the time zone only for the developped application not for all the system (by setting TZ en...

[5 replies] Last: hm.. guess then you can prepare to roll your own timezone stuff. :-( ... (by imi)

by Gajewa469

Pointer Notation

I'm trying to figure out a program that uses pointer notation to display numbers in an array. I have to use the pointer notation *arrayname. This is what I h...

[2 replies] Last: rates and *(rates + i) are equivalent expressions. The first u... (by kbw)

by KarlisRepsons

Behaviour of a static member in static function

When you look at the following code, you'll see, there is a static member, which is initialised to be 0, nevertheless, such initialization happens just once for...

[1 reply] : Static variables have global lifetime, local scope and are initialised... (by kbw)

by harsh4u89

BIOS

I want to start programming which would require knowledge of BIOS. Please tell me where to start reading for bios Thanks in advance

[6 replies] Last: Writing bootsectors is quite fun. Another thing you can do is install ... (by chrisname)

by mayarb

random function

hi, Did someone familiar with random function that generate numbers between 0-1,000,000 ? thanks, maya

[7 replies] Last: didn't know. Sorry. Would you mind elaborating that? One nice e... (by imi)

by luckycusp

Destructor is being called..

Hello I am facing a problem with this code section class Triangle { public: long int ID; Normal *origNormal; Triangle() {ID=0; origNor...

[10 replies] Last: Also note that operator= should check that it is not assigning to its... (by imi)

by prat007

Prime nos

Hye Guys I have been working on this problem for too long...Would be really glad if u all can throw some light on how to go about this problem.. thnx in ...

[4 replies] Last: @KrishnaV prat007 is selected for further rounds in General electrica... (by abhigrawal)

by chaz2115

Program using arrays

ok I am trying to write a program for school and I have no clue how to do this program. If anyone can help it would be awesome and much appreciated. I will writ...

[8 replies] Last: You are welcome! :D (by m4ster r0shi)

by Edark

Copying derivated object from base class reference

Hello all. I'm new in this forum and was really useful for me to solve problems with C++. Thanks for that. Now I have a problem I can't solve yet. I'm wor...

[16 replies] Last: Well, I have almost finished the core classes of my particle system. F... (by Edark)

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General C++ Programming - April 2010 (Page 4)