6,741 Posted Topics
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 | Posting your homework isn't going to get you help. You need to specify what you don't understand, and if you want help with a solution, post what you've already tried so we don't assume you're mooching off of us. |
| | You silly goof, write an interpreter and then run the code to see what happens. I guarantee that you'll get the job. :)  |
 | >why don't you better use cin and cout? Agreed. Perhaps this thread is in the wrong forum and he's really using C. >either way, it would be like this: scanf("%s",&word); No, it wouldn't. There are two glaring problems with that code: 1) Never ever ever use %s. It's no better … |
| | >Now I know I can easily put a getchar() but I know there is a better way. If you know there's a better way, why are you asking? >So if anyone has any tips I that would be grateful. The problem is that the IDE creates a console process for … |
| | >dude please study c well before u start writing code u have used an if 4 >times wht if after 4th time money is still less use a dowhile loop Wow, do you even know what punctuation is? We recommend that you use proper English. There's no reason to use … |
| | >So it would so nice of you to give me some advice on my codes Granted, all I did was skim over it, but your use of the standard library and exceptions looks okay. >Why does that coder write that complicated codes? Well, it looks like you're using Visual Studio, … |
 | >I encounterred a person who said that C++ is an unsafe language. It is and it isn't. C++ doesn't do much to protect you from doing something wrong, so in that light it's an unsafe language. However, if you do things right, it's perfectly safe. I'd say that person was … |
| | >AFAIK these are the famous/unbeatable/the-best books on this topic They're by far the highest quality I've seen, and very thorough if you can handle the abundant higher math and the custom assembly language. However, TAOCP is showing its age these days, and a lot of the algorithms invented after it … |
| | Normally I'm an avid Everquest II player, but I decided to try this out based on the good reviews. And it's awesome! I can't get over the visual effects and how beautiful the game looks without bogging down my high-end machine (ala Vanguard). The world feels big and looks great. … |
| | >how i will find the last character?? strlen gives you the length of the string. If you use that number as an index into the string, it always gives you the null character. Provided that number isn't 0, you can subtract 1 and it'll give you the last character in …  |
| | Read it forward, store it in a reversible container, and then walk through the container backward. Or if you know the exact length of each line, you could open the file as binary and use fseek with read to get the lines in reverse. Or you could physically reverse the … |
| | That sounds like the kind of situation where you would raise an event and pass the data as an argument to the event. |
| | >but I have to write a program which controls certain hardware and the dll for it cannot work in 2005. That's different. If you're forced to use a tool by some outside force, you don't have a choice. So in this case it's worth it to learn VC++ 6 because … |
 | Unexpected characters means you're probably accessing an array out of bounds. When running the program, print out the indexes whenever you access an array for printing. If the index isn't what you expected, that's the symptom of the bug and you can trace it back to where the index got … |
| | >I am wondering if some expert in C++ at this forum can do this for me. No. We help you do your work, we don't do it for you. Please read the rules before posting. |
| | >I was thinking maybe an array of arrays You were thinking correctly. Something like this perhaps? [code] #include <iostream> #include <ios> #include <limits> int main() { int a[][5] = { {1,2,3,4,5}, {5,4,3,2,1}, }; int index; std::cout<<"Enter 1 for ascending or 2 for descending: "; while ( !( std::cin>> index ) … |
| | Re: Are you a dork? >Have you ever wondered if you fit the description of a cool guy or a dork? I'd have to say no since my measurement of being a dork includes relying on external links to add value to otherwise worthless posts. As you may have guessed, a lot of Geek's Lounge …  |
| | >one of the warnings is, incompatible implicit declaration of built-in function strcpy. You need to include <string.h>. This compiles, and I fixed a few obvious logic errors (like the first call to strtok needing the string you want to tokenize instead of NULL): [code] #include <stdio.h> #include <stdlib.h> #include <string.h> … |
| | >hey, how would i go about converting a char* character array to a double. Provided the array is actually a string with a terminating '\0' character at the end, you can use strtod. Or, since this is C++, stringstreams make the conversion intuitive if you're used to cin and cout: … |
| | Re: DirectX 9.0 >if you can find any for me tell me please ty Is it that hard to go to amazon.com or your local bookstore and look? I mean, you look pretty lazy judging by that request.  |
| | >Firstly, I would lke to know is C++ GUI the same as C++.NET or there isn't such thing as C++.NET? It's the other way around. There isn't such a thing as C++ GUI. There are a number of libraries that let you create a GUI using C++, but that's different … |
| | Handle the click event for both buttons and in the event handler call the BringToFront method of the form you want to go to. I don't know your form setup, so I can't offer any more advice than that. |
| | Why in the world do you need those unsigned int variables to initialize the array? You can just do this and get the same effect: [code] int countryPopulationArray[20] = {0}; [/code]  |
| | >Can i cache a result somewhere in C! Yes, you can do just about anything in C. >Should i use an if statement? I'm sure you would need one somewhere. :icon_rolleyes: >so i want to cache an intermediate result whenever the same data is used. So what's the problem? |
| | Re: Is the >Is this the right way to use fgets when its for non file input. No, you forgot to check the return value, and you need to flush stdout before calling fgets when the prompt doesn't have a newline. This is mostly correct: [code] #include<stdio.h> int main ( void ) { …  |
| | How would that make things more readable? B is only accessible to A, so the only place you can create the typedef is inside A, and the only place you need to qualify it with A:: is in an out of line definition. If you typedef B as C, you … |
| | >list<humanPlayer> jailHouse; jailHouse is a list, the list class doesn't allow random access with the subscript operator. >if(find(countriesOwned.begin(), countriesOwned.end(), countryToCheck) != countriesOwned.end()) I'm guessing this is giving you problems too. ;) |
| | I'm most certainly not a fan of Weiss' code, but the book you have is half decent in terms of coverage. His stuff is noticeably dumbed down, but if you want to take your trees to the next level, try [url=http://eternallyconfuzzled.com/tuts/datastructures/jsw_tut_bst1.aspx]this[/url].  |
| | Re: New Cold War >just for fun lets look at these fourteen characteristics of fascism: Interesting. And where did you get them? :) |
 | >Without these certifications, what good are you then? Just as good as you are without them. >No employer is going to hire you just because you say you have "good >experience" backed up with no certifications. I like to think that I have a bit of experience with this (having … |
| | You realize that this thread has been inactive for several months, yes? |
| | >AD? You're probably being confused for Ancient Dragon. I bet that makes you feel good. ;) |
| | >I have been working on this school project and have figured out every step but two. > >So far I have everything done, and my stumbles are on #4 > >Also on #6 I can add the explanation point to the end of the words that >are longer that 8 … |
| | Your bracing and indirection are off. To get the address of the links, you need to first dereference current_node. Then you need to do a member access using the arrow operator to get the link, then you need to take the address of that result: [code] &( *current_node )->left [/code] … |
| | >How can I access the array of classes from other functions? Well, if you want global but not global, a Singleton with the array as a member would be plausible. Or you could pass the array around, or you could create a wrapper for the array and pass it around. … |
| | >And it's a question for beginner, maybe I should use some beginner's way. Maybe you should read the question more carefully. ;) The problem asks you to calculate a factorial (that is, N!), not the factors of a given number. You're trying to solve the wrong problem. >Storing the data … |
| | You're mixing up the meaning of a row and a column. The following allocates using column major order (a[cols][rows]): [code] mat1 = malloc(cols * sizeof(int*)); for(i = 0; i < cols; i++) { mat1[i] = malloc(rows * sizeof(int)); } [/code] And this prints using row major order (a[rows][cols]): [code] for … |
| | Is this a console program? That kind of thing is better suited to windowed programs, but you can do it easily if you want: [code] #include <iostream> #include <iomanip> #include <climits> #include <windows.h> int main() { int count = 0; for ( ; ; ) { if ( GetAsyncKeyState ( … |
| | >I am sorry for that I can't understand what's this sentence's meaning? Where did you find that sentence? It's nowhere in this thread. >Can you tell me what is your opinion in whether use "NULL" in C++? 0 and NULL are the same thing in C++. Pick one and use … |
| | >"Matt" This is a string. >char thePlayersName This is not a string. Since you don't seem to understand the difference between a char and a pointer to char, you should stick to using std::string objects. |
| | Have you tried to do it on your own? Or did you just run here hoping that someone would do your homework for you? |
 | I don't think anyone is dumb enough to write a book like that. Your best bet is simply to know the language well enough to figure out the problems. Or tell your teacher to learn the language well enough not to accidentally introduce errors so that the problems are easier. … |
| | You derive Operators from BaseToken, but tokenValue is a member of Operators, not BaseToken. So BaseToken can't use it because inheritance goes down the chain, not up it. |
| | Re: Windows vs Mac >So there is my challenge: convince me. Okay. You can run Windows as a virtual machine while running Mac OS at the same time. With the incredible memory magic of Mac OS, you can run both simultaneously without any noticeable performance penalty. Congratulations, you now have the best of both … |
| | Re: Priority Do you need any implementation, or something specific? We're not going to just give you code for something that sounds like homework. And if I link you to a priority queue that uses a straight array but you really needed one that uses a heap, we've accomplished nothing. So can … |
 | Re: Where's Junyah? Not that I care or anything, but what kind of illness keeps you from posting on Daniweb? |
| | Re: c++ Help [url]http://eternallyconfuzzled.com/tuts/datastructures/jsw_tut_bst1.aspx#traverse[/url] |
 | >effectively don't they do the same thing? Somewhat. The define is a textual replacement. Anywhere you say X, it's turned into 100 before the code is compiled. Y, on the other hand, is an actual object that the compiler will recognize. You should choose the latter simply because there's fewer … |
| | >D D::operator- (const D &d2); You have a rogue semicolon. |
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