Beginners - C++ Forum - January 2011 (Page 32)

How would you get the number of characters from an array?

Such as, if I had the user input a character sequence ranging from 0-10. Is there a function that I could use with the array to return an integer value correspo...

[5 replies] Last: @stereoMatching If it's any consolation, after correcting you ne55 ... (by Moschops)

by Crutoy

displaying a square

I dont want to boar anyone with this trivial questions but as im learning C++ from the book by Deitel there are questions in the end of each chaper to test your...

[3 replies] Last: Done , thanks for suggestion // drawing a triangle #include "... (by Crutoy)

by roelf01

Can anyone make a header for mysql? I dont have Any clue.

I'm making a Mobile book inventory for a friends library, It's using a mysql db so people can order a book online And pick it up later. THE online part works ...

[5 replies] Last: I found a good totorial Thanks to my friend (by roelf01)

by Deadmau6

How to create histogram?

Hi, i'm a total beginner for C++ and for my tutorial exercise i have been told to create a histogram (a question like this may come up in the exam as i been tol...

[6 replies] Last: Thanks friend, you just solved it for me by saying i don't have to put... (by Deadmau6)

by poisui

c++: how to input data on command line.

Hi. I'm trying to input 2-dimensional array data from command line (i.e. not file data). My question is how to do that? For one dimension array, I can separat...

[3 replies] Last: If it's to diffult I'd suggest that you use a debugger and going thru ... (by coder777)

by wildsummerdream

Sorting

I just have a question with the sort command used with vectors, does it only sort in ascending order? or is it possible for it to also sort everything in descen...

[2 replies] Last: Oh I see thanks a lot :) (by wildsummerdream)

by personak

struct tm

I've tried this: void printings () { struct tm { int tm_mon; int tm_mday; int tm_year; ...

[4 replies] Last: Why are you all doing this? #include <iostream> #include <ctim... (by Duthomhas)

by Minute

Learning C at school and wondering if i should try to pick up C++ too

Basically, I am learning C at school (have had 2 classes and 1 lab so far). I need to learn it for the diploma i am getting (for trades). But I am wondering if ...

[5 replies] Last: You'd expect the answer to be yes if you ask that on a C++ forum. But... (by kbw)

by closed account 4Gb4jE8b

Everything returns NULL

Ok so i've tried read(), get(), and getline(), to try and get the contents of my file as a whole in one variable string/char*/stringbuf, Each time buffer (the v...

[8 replies] Last: yes the files exist. And i understand what you're saying when you say ... (by closed account 4Gb4jE8b)

by stereoMatching

Which book is good for learning openGL?

I am finding a book aobut openGL because I need to do some 3D reconstruction homework, I found that openGL super bible 5th edition is pretty good for the be...

[no replies]

by enigmaterror

Histogram issues

Hello I've written a program that makes the user input positive numbers, and a negative number. The negative number tells the program that the user has stopped ...

[2 replies] Last: Yeah I have been told that before but this code is just for me I'm new... (by enigmaterror)

by RaptorX

'recursive' overloaded operator

hi guys, I just finished reading the tutorial and im trying to understand some object programming concepts so be slow with me :D I have been trying to im...

[4 replies] Last: No reason in particular. at the beginning I was going to use ',' (c... (by RaptorX)

by helloworld922

shared_ptr (C++0x)

Hi, I was wondering what's the difference between these two: triangle::Triangle doIt(void) { point::Point p0 = point::Point(point::ORIGIN); // point::O...

[no replies]

by paki programmer

Pointers

So i was just wondering. Why are pointers so important in C++? lol i guess i just havent really seen any applcations for it personally yet

[2 replies] Last: Also see: http://www.cplusplus.com/doc/tutorial/pointers/ (by closed account 43RGz8AR)

by djdashwood

3N+1

Does anyone knows about 3N+1?? if anyone knows could please help me understand this: Sample Input 1 10 100 200 201 210 900 1000 Sample Output ...

[1 reply] : Please post the code you are having problems with. (by rocketboy9000)

by rEPTILE

IDE Suggestion

i've only taught myself how to let windows know you're making a program only this #include <iostream> using namespace std; int main() { std::cout << "...

[10 replies] Last: Visual C++ is what is use. However if ur just starting out stick to s... (by paki programmer)

by closed account zb0S216C

Using memcpy( ) With Arrays and Vectors.

Basically, can I use the memcpy( ) method when copying an integer from a vector to an integer array( and vice-versa )? Here is what I mean: // The vector...

[4 replies] Last: in this case, I think the assign member function of the vector itself ... (by stereoMatching)

by Krahl

Unknown parameter in array

Hi, I am using an array of type integer as an argument in a function, e.g. void Function(iaaArray ){} What I would like to do is have something like....

[6 replies] Last: Hey thanks ne555 I forgot I could use template functions. (by Krahl)

by Hilo890

int argc, _TCHAR* argv[]

I used to use Bloodshed Dev C++ a lot in the past, but then I switched over to VS Express. The default code that comes with console applications has int argc,...

[1 reply] : argc is the number of arguments passed (ARGument Count). argv is an ... (by Moschops)

by Tiigon

Function doesn't work...?

I have a function which generates a random map for a game, but it just makes the game not respond at all. This is the part which calls the function: debug ...

[5 replies] Last: Managed to get it to work - I was trying to change a variable with ==. (by Tiigon)

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Beginners - January 2011 (Page 32)