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Beginners - September 2011 (Page 43)

what is wrong with my randomizing a number?

im just trying to generate a number 1-4, declare a 'creature' for that number, and then display its stats my error is on line 59 attempting to generate a num...

[1 reply] : If generate_random(int) returns an int, then you should have assigneg ... (by piotrekd)

by wasabi

getting bad_alloc from new

I'm running a program and am getting a bad_alloc exception from new . The problem is not that I've run out of memory, my program isn't that resource-intensive....

[7 replies] Last: Just found my error. In a previous part of the function, I had a stati... (by wasabi)

by learningtocode14

can you help why wont this compile? help

#include "stdafx.h" // This is for MY compiler remove this if the program does not compile. #include <iostream> using namespace std; int main() { int n...

[5 replies] Last: You can omit the stdafx header by deselecting the Pre-compiled header... (by closed account zb0S216C)

by myristate

OR Operator

This may sound a bit absurd but how the heck do you get the OR operator character on a British layout keyboard. The symbol appears to be on the key next to the ...

[1 reply] : Erm nevermind. Turns out although the symbol is on that key it only o... (by myristate)

by bool maybe

New with classes. Could someone please look at this prgm.

I'm trying to write a program using classes (you don't need classes to write this program but I want to acquaint myself with classes) that outputs a students le...

[1 reply] : Could someone please comment on my code. I want to know anything wrong... (by bool maybe)

by Hasnain Attarwala

Monthly Payments

The monthly payment on a loan may be calculated by the following formula: Payment = (Rate * (1+rate)^n)/((1+Rate)^n - 1) * L Rate is the monthly interest ...

[4 replies] Last: You can easily do that with right manipulator. Its in the link I gave ... (by Undeclared)

by PeterK

Write 2D Array to binary

There are a lot of tutorials and stuff about how to write data to a .txt, but none of them really helped me. I made a program that is supposed to convert integ...

[10 replies] Last: Well, everything works. It saves the files and correctly loads them ag... (by PeterK)

by closed account S8hvC542

specify to have dynamic size of a value

For example, I'm creating a class of say pixel. This pixel could be part of a grey scale image that has 256 shades from black to white so it could be represent...

[4 replies] Last: I'm in a digital image processing graduate course. We can't use any i... (by closed account S8hvC542)

by Beep

Baby steps!

#include <iostream> using namespace hello; cout << "Coming from Python background, and I need someone to shoot in my leg !!"; Thanks to all this great tutor...

[3 replies] Last: C++ is indeed a very interesting language. Wish you best of luck with ... (by Undeclared)

by CosminNTG

How can I clean my screen?

I've created an application in C++ (I didn't think was necessary to post the code) and at a moment I had to clean my screen. I knew the function clrscr() from t...

[4 replies] Last: Thanks a lot friends! Nice forum, by the way! I am glad to be part of ... (by CosminNTG)

by hoplalos

Template class file organization

Hello: I am new to template programming and trying to implement a simple toy template class with Visual Studio 2010. For the sake of clarity, I would like...

[4 replies] Last: Thank you Shacktar. The code is compiling with the separation model. ... (by hoplalos)

by andreychernukha

question about file proccessing

Hi guys. Can anyone explain me this: #include "stdafx.h" #include<fstream> struct A { string a; string b; int i; }; int _tmain(int argc, _TCHAR* ...

[no replies]

by prefix1990

Convert Image to Matrix

I want to convert image(ex .bmp or .jpg ...) to binary matrix. When image was loaded,I want to convert it to array as a matrix.At black point is 1 and white po...

[1 reply] : In Windows you can use GetDIBits() (http://msdn.microsoft.com/en-us/li... (by webJose)

by masky007

i got the very basics, how sould i continue?

Hi, I have been reading a book and helped me allot! So far i have covered: -Types, Variables, and Standard I/O -If Statements, branching and Looping Sta...

[6 replies] Last: Thanks for the compliment :) I have just started working on it and wou... (by Undeclared)

by jrmma

assignment operators

is the following code correct?: if(0!= variablename) { ... }

[6 replies] Last: OK Thanks a lot.. So basically they are the same right? " if(0==var) "... (by jrmma)

by Tanuj31

learn more pointer.......

#include<stdio.h> float * display(int,int); int max=5; int main(){ float *(*ptr)(int,int); ptr=display; (*ptr)(2,2); printf("%u",ptr); ptr=p...

[1 reply] : Because of this: ptr=ptr+1; ptr is a pointer to a function. What... (by Moschops)

by DontyouC

Calling variables from other functions

Hey guys something I'm not sure how to do is to use a variable defined in a function in an entirely separate function. In this case I'm trying to get the length...

[6 replies] Last: That means that there's no matching function prototype in the class de... (by shacktar)

by Tanuj31

function.....

#include<stdio.h> #include<conio.h> float * display(int,int); int max=5; int main(){ clrscr(); float *(*ptr)(int,int); ptr=display; (*ptr)(2,2); ...

[1 reply] : 1. Don't return pointers to local objects. The objects go out of scope... (by helios)

by maharris

basic 4 slot seat reservation

hello, i'm trying to program a 4 slot restaurant table code with a bool loop. I do not know how to make it so that if someone selects seat 1, the loop repeats ...

[3 replies] Last: ok! i got it down! turns out it was in the next chapter of my book. ... (by maharris)

by hydroJ

Function prototype problems

not exactly sure what I am doing wrong here... advice? //****************************************************************** // LeapYear program // This progr...

[4 replies] Last: that did it. thanks. (by hydroJ)

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