Beginners - June 2013 (Page 42)

input of scanf
Why Does the following code take 4 inputs???i am using codeblocks on ubuntu... #include <stdio.h> int main() { int p,n; float f,si; scanf("...
Jun 5, 2013 at 3:08pm
[1 reply] : jeez, just use google. http://www.cplusplus.com/reference/cstdio/scan... (by mutexe)
passing pointers and arrays
im having troubles with passing arrays and pointers. Im still not exactly sure on how i would pass a point that is an array to a function. not sure if i fdong t...
Jun 5, 2013 at 2:51pm
[2 replies] Last: The name of an array is also a pointer to the first element of the arr... (by MikeyBoy)
how to save item in memory
i created a server using a tcp connection. I also have a client program that connects to this server. I want the server to store the ip addresses of the clients...
Jun 5, 2013 at 2:51pm
[2 replies] Last: I would write the file to a /tmp file, that way if the server reboots,... (by SamuelAdams)
Const static arrays and classes
Hi I'm trying to create a const static array of string for a pure virtual base class. Can anyone see what I'm doing wrong? class Item { private: ...
Jun 5, 2013 at 2:49pm
[6 replies] Last: // header file item.h class item { protected: std::string... (by JLBorges)
Pointers to functions
Hi, I'm at this part of the tutorial, in the section Pointers. http://www.cplusplus.com/doc/tutorial/pointers/ "C++ allows operations with pointers to function...
Jun 5, 2013 at 2:39pm
[16 replies] Last: how would it be to pass a function as an argument to another function... (by Cubbi)
OOP
Sunshine Furniture Sdn Bhd has approached you to develop an application to track all the items in the company. (a) Define a class named Item to store the detail...
Jun 5, 2013 at 1:44pm
[6 replies] Last: And where can I find documentation about bool operator==(Item& aItem)... (by optimisez)
by Scipio
flexible class operators
Hey People, I have a very simple class State containing a bunch of variables. Now I want to define State State::operator + (State) that simply returns a Stat...
Jun 5, 2013 at 1:18pm
[3 replies] Last: Nope. You're not going to be able to do that. You could use an ar... (by AbstractionAnon)
by Hvqc
Help with a database?
I am still very new to c++, but I would like to practice making something like a database, but I'm not exactly sure where to start. I know I don't know enough t...
Jun 5, 2013 at 1:14pm
[1 reply] : You could take a look at SQLite3. There's an example here: http://www... (by kbw)
Copying bytes from txt file
Hello. I want to copy the last 4 bytes from a specific line from a text file (ie, always line 5). What is the best method to use once I open the file for readin...
Jun 5, 2013 at 12:45pm
[2 replies] Last: size_t n = 5; std::string line; while ( n && std::getline( YourFil... (by vlad from moscow)
by Vigii
Is there any predefined functions in C++ for differentiation
Hi, I'm looking to perform a different order of Differentiation for a function given. It could be easy because my actual coding work is back with numerous...
Jun 5, 2013 at 12:19pm
[2 replies] Last: Please see: http://www.cplusplus.com/forum/beginner/65749/ (by condor)
by mrm40
using array members
Hi. i have the code below: int dynamicbinomial(int n, int k) { int* b = new int[n,k]; for(int i=0; i&lt;= n; i++) { for(int j=0; j&lt;= min(i,k...
Jun 5, 2013 at 10:30am
[4 replies] Last: ok mrm40, you're welcome! (by condor)
String in switch statement
So I have a problem, i wanna use string in switch statement, but when i do that, c++ show me some error like: "switch quantity is not an integer". So question, ...
Jun 5, 2013 at 10:14am
[4 replies] Last: If you do as vlad said you will be using C# and no longer C++. (by Peter87)
problem in understanding stacks and queues
Hi all. i'm preparing the c++ test and i got some problems with stacks and queues. i have not clear how the push/pop functions have to be organized, and their...
Jun 5, 2013 at 9:41am
[1 reply] : by looking at the traversal, i can say its a circular queue, google ci... (by SirSmilesaLot)
Basic Do While Loop
Hey, I'm trying to write some basic Do while loops. Have done a couple this morning and all worked fine, but for some reason I cant get this one working properl...
Jun 5, 2013 at 9:07am
[5 replies] Last: ^ Cheers mate, ill try that from now on. (by AphexBravia)
Some trouble with vectors and classes
O hai hoomans of ceeplusspluss I have some code and I dont know whats wrong with it #include "Startup.h" #include <iostream> #include <sstream> #inc...
Jun 5, 2013 at 7:52am
[1 reply] : the error pretty much says it all: on line 30: you pass a string whil... (by coder777)
by Ch1156
Read words from file, choose one then output
Ok so i want the program to be able to read a list of words from a file and then randomly choose one then output it all jumbled up. I already know how to jumble...
Jun 5, 2013 at 4:50am
[3 replies] Last: http://ideone.com/UIcIF8 (by naraku9333)
Saving data entered by the user?
I'm trying to make a console app that manages your money in a game's auction house. You can add up to 20 items to manage and you'll be able to see see potential...
Jun 5, 2013 at 4:28am
[1 reply] : Yup! Go to documentation and go down to input/output tutorials. It wi... (by Hambone)
FStream Help Please!
So I created a code to show your high score using ifstream and ofstream to save them to .txt and to read from them. So when you run the program the first time e...
Jun 5, 2013 at 1:58am
[1 reply] : Never Mind I GOT IT WOOOOOOOOOT! OMG it feels so nice when the program... (by sakonpure6)
by a sk
Method return type?
What's wrong with my code below? Throws this exception: matrix.cpp:49:24: error: argument of type ‘int (matrix::)()’ does not match ‘float**’ Here...
Jun 5, 2013 at 1:26am
[6 replies] Last: Thank you! I managed to fix it now. Below output. 8 4 [0,0]0 [0,1]1 ... (by a sk)
confusion with comparison of char
Why is this output as true. Arn't 0 and 9 converted to their ascii equivalents and numbers are lower in ASCII so 9 is not lower? ch3 = 'C'; cout << "'...
Jun 5, 2013 at 12:23am
[3 replies] Last: cool cool makes perfect sense. Thankyou. (by Ramzi89)
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