General C++ Programming - C++ Forum

Hallo Leute ich versuche jetzt ein Programm mit c++ zu schreiben welches nach vor und nachmae fragt und danach soll der Benutzer Klausur Noten ,Referat Noten u...

[1 reply] : This is a website in English, not in German and use [ code] tags wh... (by Bazzy)

by coincollector

swap program

hello I have to write a swap program for school and im on break now so i have no access to help.. the program has to look somewhat like this #include <iostre...

[4 replies] Last: thanks so much (by coincollector)

by hamdy

Display a number and its ASCII code at the same time

Hello ,,, if i have an int variable named i=10 how can i display ...(with cout<<) the variable and its ASCII code ? thanks alot A ,Germany !

[2 replies] Last: cout << i << char( i ); ASCII 10 is the newline character... (by Bazzy)

by n4nature

functional abstraction

Has anybody gone through Item 20 of Scott Meyers: 50 Specific Ways? In that item, he tries to give two specific advantages of declaring data members in private ...

[3 replies] Last: On second thought, I now get your point. He says clients cannot direct... (by n4nature)

by Sundar0206

A Query on pointers

Well another query for the day. A bit long post this time. Please bear with me and help me I have a class called TEnt which basically defines a entity. I h...

[3 replies] Last: Hi guys, Thanks for your feed back. I sort of found out the error. I... (by Sundar0206)

by Anonymouse

Convert int to string with number in different base

How would you go about converting an int to a string which represents the same number in a different base? In my case, I have to convert a number to PENTA d...

[7 replies] Last: I think you misunderstand what I was trying to show. The array of cha... (by jdd)

by ark217

Regarding prime numbers

I had a test with a question on it regarding prime numbers and was hoping someone can explain to me how I would have solved it. I got it very wrong... Basi...

[4 replies] Last: Okay- thanks for the responses. I understand now. (by ark217)

by spydaios

getline(cin,string obj); problem....

Using Linux g++; sample code as follows : #include<iostream> #include<string> using namespace std; int main(){ string str ; int oo; cout...

[2 replies] Last: if i've understood your problem correctly then use endl after cout and... (by writetonsharma)

by mustard

any suitable engines for dev c++?

hey, im fairly new to the c++ universe. i have been working through several tutorials i have found over the net and one thing kept bugging me. as much as i g...

[3 replies] Last: hmmm.. opengl is basically a c library for graphics programming.. infa... (by writetonsharma)

by kevinchkin

Weird error (1,2)

Hi Guys, I am having this weird problem, class myClass { public: string s1; string s2; string s3; string s4; string s5; }; ...

[25 replies] Last: hmmm... lets leave this discussion here and look for other interes... (by writetonsharma)

by xargon

Converting froma char* to a const char*

Hello all, Can I safely cast from a char* to a const char* like this: const char * destPtr = reinterpret_cast<const char *>(srcPtr); Is this safe or is...

[4 replies] Last: +1 kbw. Never use C-style casts, period. (by jsmith)

by radeberger

Mutex problem

Hi everybody, I have a program mutex problem between two threads (one thread in the main function and the other in a thread function). I have a global mutex ...

[2 replies] Last: I assume the thread has initialized the mutex before the main program ... (by jsmith)

by IgorChete

Converting huge numbers to array

I'm having problems with a task, which requires from me to find the factorial of a number n, and find the last non-zero digit of that number. You'll probably t...

[2 replies] Last: Ok, now for some helpful advice. Consider how long-hand multiplicat... (by jsmith)

by radeberger

mutex's ownership

Hi everybody How can I hand over the ownership of a created mutex in the main function to other thread?

[4 replies] Last: I have to threads: one in the main function, one in a separate functio... (by radeberger)

by sac

fwrite cannot wite data into file if data size is very small

What's wrong with my following c code? I cant find the problem, Help me! I am trying to write data into a new file using the fwrite function if data size is sm...

[12 replies] Last: @writetonsharma: Right. fwrite() buffers the short data in an inte... (by jsmith)

by xargon

making a global variable accessible in a DLL function

Hello, I have a question about how to make an application global variable be accessible from a DLL. The problem is that some of the classes that this DLL ...

[2 replies] Last: do a __declspec(dllimport) instead of __declspec(dllexport) i think i... (by writetonsharma)

by radeberger

write function: max default buffer size

Hi, Does anybody knows what is the max default buffer size in the write function? outfile.write (recvbuf, bytesRecv). I want to ckeck how many times th...

[2 replies] Last: thank you Bazzy. I'll try it... (by radeberger)

by shaoen01

ReverseList Iterator

Hi all, I am trying to create my own template class reverse list operator. And was wondering how do i reverse the list. I can't seem to use list.reverse() as...

[2 replies] Last: I made some changes by adding a previous Node to my List class. Based ... (by shaoen01)

by rachitagrawal

Template Class

I have defined two template classes A and B. A has its two files - A.h and A.cpp B has only one file - B.cpp I am using both of them in main.cpp So, i...

[6 replies] Last: Typically template classes are implemented wholly in header files. Yo... (by jsmith)

by rachitagrawal

Strange Problem

I have a template class template<class T> class Atomic { volatile T value; T* getReference() { return &value; } ...

[3 replies] Last: Can you provide example code that demonstrates the problem? (by jsmith)

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General C++ Programming - March 2009 (Page 9)