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Beginners - February 2012 (Page 50)

hi all, I am trying to initialise an data member of a class, but failed. Any advices? class MathFunctions { public: const static double EWMALamda=0....

[1 reply] : class MathFunctions { public: const static double EWMALamda; }; dou... (by closed account z05DSL3A)

by Guy Nimni

a simple delete[] causes problems

Hi guys, I'm new to this forum. I'm trying to understand the way "delete" and "new" works. I wrote a simple program that convert CAPS letter to regular ones....

[2 replies] Last: Cubbi, you are sharp as a razor ! Thanks a lot for your fast help. I... (by Guy Nimni)

by jaff

Visual C++ Library Independence

Hello, I'm a final year applied math student. My research project involves writing a C++ program to run simulations on multiple computers. I am using Visual ...

[12 replies] Last: Ah, didn't realise that setting to Release nullifies your include sele... (by jaff)

by HomesickAlien

can't find the error

Hi all, This is a textbook example for the use functions. My compiler says there is a "syntax error before } token". I have been looking and testing for hours ...

[6 replies] Last: Thanks for the information. I will have a look at the tutorial and alr... (by HomesickAlien)

by yasar11732

What is the meaning of this error?

This is the function where compiler gives error: void addFileToDirectory(directory * dir, const file& f) { dir->addFile(f); f.setParent(dir); } This...

[2 replies] Last: Ohh, you are right :) (by yasar11732)

by gift81

My offer is your English - my teaching of programming

I'm a developer and teacher of programming. who wants to stady C++, C#, .Net, Java - you are welcome. It's free. what is my interesting?:) My English is not ver...

[6 replies] Last: So:) (by gift81)

by AliMoradi

Code Returns A Value of Zero For Simple Variable

I have defined a variable dX = (b - a)/N, where a = 0, b = 3, and N = 15; however, when I print dX, it always gives me a value of zero which makes no sense. I'm...

[8 replies] Last: Actually what does your program do???? Is it for integration or somet... (by rambo1177)

by OxBADC0DE

Printing all values in a 4x4 multidimensional array

I've been trying to print out a well formatted values of a 4x4 array but well i've not been successful,belows my line of code #include<iostream> using name...

[1 reply] : You have declared only 2 1 d arrays. int a ={2,3,4,10,2,3,4,10,2,3... (by rambo1177)

by mowali

Arrays problem!

The bubble sort presented in class is inefficient for large arrays. Make the following simple modifications to improve the performance of the bubble sort. #...

[2 replies] Last: What mowali says is a different method of sorting . You musn't even re... (by rambo1177)

by tempneff

I am trying to better understand two dimensional arrays with functions

I created this program in hopes to better understand 2d arrays by doing simple operations. I am just not getting it. All I am trying to do is add to values from...

[8 replies] Last: Thanks so much. The pieces are falling together. (by tempneff)

by nikstar802

using void** pointer

Hello Everybody, I want to use void** pointer as a function arguement. But I am not able to use it as it is giving many errors. using single void pointe...

[5 replies] Last: ah, sorry, maybe you need reinterpret_cast instead of static_cast (by Disch)

by Azaleon

Problems with Leap Year check

Trying to get my leapyear checker to work, but I'm finding it's not working regardless how I move things about. Any tips? In member function `void DayOfYear:...

[2 replies] Last: Sorry im on my phone so hard to type what I want. In short, your chec... (by clanmjc)

by CJC0117

Switched to new IDE - program no longer runs correctly

Hi. I just installed code::blocks to replace dev-C++. I have a program that runs fine when compiled with dev-C++ but not with code::blocks. In particular, this ...

[7 replies] Last: Also, can anyone tell me why the function returned a garbage value wh... (by vin)

by tempneff

How is this unsigned short so big?

I am just testing some ideas for a program I need to make for school. I am wondering why I am able to output a number bigger than the 65553 that an unsigned ...

[3 replies] Last: Thanks so much, that was it. (by tempneff)

by closed account 2EURX9L8

File I/0 question

Hi, I am having troubles figuring out how to get the leading white space out of my output file. Below is the line in a .txt file I am supposed to get 3...

[2 replies] Last: Its from an assignment. I want to get the 1 right underneath the F in ... (by closed account 2EURX9L8)

by dolphin spa

Invoking constructors of parent classes

When I implement the below code the o/p I get is: mother: int parameter: 20 father: int parameter: 30 son: int parameter: 10 Which is perfectly fine. My q...

[2 replies] Last: perfect! thanks.. (by dolphin spa)

by daniel2012

printing change back for the output?

i am extremely confused as to how i would get the program to print this? The change is: [$=7, Q=3, D=1, N=1, P=4] i dont know how you would write a program th...

[1 reply] : $7.94 dollar is easy which is 7 now you have 94 so lets start with ... (by nooblet)

by eves

addition of 2 numbers stored as vectors

Hi, I'm trying to write a program to add 2 numbers, stored as vectors of characters. the larger number is a vector max with size lmax (int) and the smaller numb...

[3 replies] Last: I got an update email but the post is not showing up. But I got your ... (by histrungalot)

by zone19871

Changing veriable names while it excutes?

can i change a name of a veriable like int one; to int two while the code is running

[2 replies] Last: Why would you even want/need to? What was the problem? (by WhiteWind)

by Cloudboy

oh my gosh i can't even get isdigit to work

I have tried the most basic of programs and I just cannot get it! int main(void){ int guess; scanf("%d", &guess); if(isdigit(gues...

[4 replies] Last: ok thanks! I changed it to this and it works now: int main(void){ ... (by Cloudboy)

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