General C++ Programming - C++ Forum

I though it would be funny to write a programming language where commands are based on an array of keywords so users have a very broad range of 'plain-text' wor...

[6 replies] Last: The problem is that natural language isn't sufficiently exacting. ... (by Alan)

by Duthomhas

Double dereference off of iterator?

Hey, I was just playing around with a deque of class pointers, and I was wondering if there was some cool C++ way of writing the following more easily: fo...

[2 replies] Last: Ooohh, I'll have to check that one out. Thanks! (by Duthomhas)

by enigmatix

Custom String Class

Hey guys, I want to try an write my own custom string class (for learning purposes) and I've been doing some research on it. The std::string class uses the C...

[1 reply] : If it is for learning purposes only, I wouldn't worry about thread saf... (by jsmith)

by kilombo

static library using virtual methods

Hi, I'm trying to create a static lib. This lib needs to read/write to a db, but the library has no information about db (type, pass, etc). The idea is...

[5 replies] Last: If you take the IDBProvider object by reference (or pointer) that migh... (by jsmith)

by vfoos

Can I speed up database access using CRecordset with ODBC to SQL server?

Hello everybody, I have written a C++ command line program that does calculations and at the end, writes the results to an MS-SQL server database using CRec...

[4 replies] Last: Thanks, I will have a look in ADO/BulkInserts. I am opening and clo... (by vfoos)

by Alan

generic 'variable' class

Im writing a generic variable class ie: variable a = "Hello"; variable b = 'a'; variable c = 34; /* ... */ a = 34; b = "Hello"; c = 'a'; .. ev...

[5 replies] Last: i never heard about boost anything... looks ez tho. -_- (by Alan)

by madhavagarwal

Casting vectors to void pointers

Hello , I want to cast STL vecyor to a void pointer....How do i go for it? ex: void *data; vector<int>myvector; Now i want data to hold all the v...

[2 replies] Last: That works as long as sizeof( vector::value_type* ) == sizeof( void* )... (by jsmith)

by hamsterman

Release build fails

Hello I want to make a release build of my game, but I get an error "Cannot open include file: 'd3dx9.h': No such file or directory". The code works if debug c...

[3 replies] Last: because there may be some different librarys which generate extra debu... (by Incubbus)

by yalcin

Opengl on PictureBox toolbox in Visual Studio 2008.net

Hello, How can I use Opengl in PictureBox toolbox in Visual C++.I didn't come across any document on internet.Do you know any document,tutorial,code example ...

[1 reply] : The first: Why did you submit two similar posts? The second: Why ... (by Denis)

by murukesh

Input to output using >> and <<

I'm a C++ beginner, currently studying stacks, with a basic knowledge of both C and C++. I am using Code::Blocks as my IDE with the MingW compiler that comes al...

[2 replies] Last: a. Yet different runs of the program after rebuilding while occasional... (by murukesh)

by lekaimadh

C++ with folders

I was wondering how can you manipulate with windows folders using c++ e.g. I want to create a program the has this abilities. To create a folder. Rename a ...

[1 reply] : http://msdn.microsoft.com/en-us/library/aa363946%28VS.85%29.aspx Ha... (by webJose)

by cableguy414

Problem with functions in inherited classes

Here is what I'm trying to do. I have 3 classes: base | derived1 | derived2 In the main program, I call a function within the base class that s...

[11 replies] Last: Ok, I got it working. First, thank you everyone for your help and a... (by cableguy414)

by Incubbus

Improving Algorithm

//Counter Number Of Lines Already Existing In The File do { file >> num; //Get ID if(!file) break; counter++; //Get Next Line do {...

[2 replies] Last: ahhh... why didnt i think about that T_T... thank you:)... (by Incubbus)

by gosego

program code

how do i generate a code for a c++ program that calcute workers s basic salary including alowences and tax deduction then print results on the screen

[6 replies] Last: it doesn't have to be a keyboard, it can be a keypad too :D (by sikac)

by Alan

max "index" in container

I know there is max_element() but i need a function to return the index of the element instead of the actual value... any help?

[2 replies] Last: thanks! just what i was lookin for (by Alan)

by liujbscott

vector and handle problem

I followed the example Sales_item presented in handle classes and inheritance, C++ primer 4th,and i replaced mutset with vector, unfortunately, i failed to get ...

[3 replies] Last: since not all of us have the primer, we dont know the examples... (by Incubbus)

by mjordan1

hasNext Function in C++

Hi,,, I am aware of hasNext functions provided in Java language with class Scanner (java.util.Scanner) such as hasNextInt(), hasNextDouble(), etc.. An...

[2 replies] Last: There's no such thing in the C++ standard libraries, but it's straight... (by kbw)

by Balakumar

How get first three digits of an integer in C++

Hi I want to know how to get the first three digits of a four digit number in C++.Any suggestion?

[17 replies] Last: @Alan, it shows 34 here... (by Haptic)

by MeWantCup

Comparing two strings with If statement

Hi, when I enter "oo" I get the "Wrong Password!!! output.. I need to get the "correct Password" output! I would think that this code would work but it doesn't!...

[3 replies] Last: Yes, it should work, but I forgot an important thing: You still can u... (by johnkravetzki)

by ashwani

pointers.?????????

pOrder->GetValue(CL_ORD_ID, sVal); what will be the status of pOrder here?? Getvalue function is to store value Of svalue to CL_ORD_ID

[3 replies] Last: pOrder would be a pointer to the class which GetValue() is a member of... (by Alan)

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General C++ Programming - August 2009