Beginners - C++ Forum - August 2012 (Page 42)

Hi i would like to generate -,+ and * as char randomly. Please can some1 advice me?

[4 replies] Last: The common technique is called a 'look-up table', or LUT for short: ... (by Disch)

by Hit

differences between: const int ROWS = 17; const int COLS = 17 and enum { ROWS = 17, COLS = 17 }; I know not to use macros for C++, but confused ...

[1 reply] : const int ROWS = 17; const int COLS = 17; This is good: you have two... (by Cubbi)

by DJLad16

Should I have more knowledge at this point?

I've just finished chapter 2 in the book "Beginning C++ Through game programming Third Edition" Chapter 2 involved learning if statements, switch statements, wh...

[9 replies] Last: Thanks, guys. I really appreciate all this advise, and I now feel a mo... (by DJLad16)

by dustyperez

for loop help plz

How can i get a for loop to display a character, say "~", a certain number of times? thats all it needs to do. thanks

[16 replies] Last: Well I am in a beginner class and we HAVE been putting namespace at t... (by Moschops)

by joggilil

Help me understand whats wrong

I have the following code using namespace std; #include <vector> #include <functional> #include <algorithm> #include <iostream> #include <iterator> t...

[4 replies] Last: Ahhh, tnx alot ne555 (by joggilil)

by Shifter12345

for loop inside for loop

Hello everyone! I am a beginner in C + + and I have a question about for loops . I understand the global concept of a for loop , but I do not know how it wor...

[16 replies] Last: Now it's ok. Thanks people! :) (by Shifter12345)

by flamesscarlet

Some allegro commands not responding.

The problem is very simple. The command ALLEGRO_EVENT_KEY_UP is not working, though ALLEGRO_EVENT_KEY_DOWN is. Also, even though i am doing everything according...

[3 replies] Last: Oh now i see what i did.... thank you so much! I didnt realize it was ... (by flamesscarlet)

by newbie17

string compare

how to compare to char strings in c++ can i use strcmp()????

[2 replies] Last: It would be better to use actual C++ strings, rather than C-style arra... (by Moschops)

by SGM3

Adventure book

I would like to write a "Random" adventure book, with a little user input. I will have to pass data to functions, which is not a biggie. I would like the progr...

[1 reply] : I would say store your stories on separate text files or in a differen... (by Need4Sleep)

by monkey1604

operation in C++. Please, help me :)

Can you please help me with this question. Please give me a brief explaination. thank you so much. If a, b, and c are integer variables, some of these ...

[1 reply] : = is assignment, it puts the value into a variable == is comparison, ... (by TheIdeasMan)

by ToniAz

How good is qsort() in stlib.h

Hello everyone! I'm writing a median function that would most probably be called no less than 500,000 times in one run. The data size/cardinality is however 5,...

[5 replies] Last: Maybe your library functions implement efficient data structures inter... (by TheIdeasMan)

by kalkas

Quick question about gcnew

Hi, I'm writing a windows form application in which a have a listBox Object. In first it's empty. To add items I just say: myForm->myListBox->Items->...

[4 replies] Last: thank you for your time (by kalkas)

by TheBestHacker

Deleting Element from Vector with an Iterator

How would I do this? std::vector<Bunny> v1; std::vector<Bunny>::iterator _it; for(_it = v1.begin(); _it != v1.end(); ++_it) { if((...

[4 replies] Last: Reading the documentation, your last example should erase all the elem... (by TheIdeasMan)

by nadeem786

how do figure out how many elemenst in a array

k

[1 reply] : the array has 6 items in it, but it has the capacity to hold 10. (by TheIdeasMan)

by nadeem786

question about parameter

my parameters are not working. do u need space or what?

[2 replies] Last: void foo(int a, std::string b) { } (by TheBestHacker)

by KarelC

Command Line TicTacToe

I recently completed a command line tictactoe, and was wondering what I could change to make it better, besides making it object orientated which I am just star...

[4 replies] Last: Thanks for replying. I actually did think about doing it that way at f... (by KarelC)

by SGM3

Loops (1,2,3,4,5,6,7)

I am trying to understand loops very well before I move onto the next section of C++. I am attempting what may be a task beyond my knowledge. I have made a gue...

[125 replies] Last: OK, the while loop you found had the ! in it, so be careful copying co... (by TheIdeasMan)

by toomanystars

Matrix mult help (pointers)

Hi guys, Having an issue with matrix multiplication. For the final matrix, I get the proper size for example A * B = C . I also know the algorithm is...

[6 replies] Last: Thanks a lot for the help. I was looking however to returning the obje... (by toomanystars)

by lixinsbgtf

map<key, T>, less_key

Hi All, Does anyone know that is there a way that I can change the map order from less to kind of "more"? For example: There is a map<string, int> called...

[3 replies] Last: @ne555 Thank you for your answer, the second method. That's what I exa... (by lixinsbgtf)

by sergiuxxcracker

Typecast struct pointer

Guys I have a small problem could anyone explain please what does the following line does please ? char packet ; IPV4_HDR *v4hdr = NULL; //(IPV4_HDR is...

[4 replies] Last: You have to cast the char* to an IPV4_HDR* in order for it to work syn... (by Lowest0ne)

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Beginners - August 2012 (Page 42)