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General C++ Programming - September 2014 (Page 23)

I'm trying to write a C++ program that reads user values into two arrays, the user however first enters the number of integers to be read. The program then perf...

[2 replies] Last: Thanks. Yeah the answer, 'values', was right in front of me. Program r... (by Fringe)

by DrJones

data / picture manipulation

I have black and white picture which looks something like that. 0000000 0111111 0011111 0001111 0000000 I am looking for a method such that i can frame the e...

[2 replies] Last: How would you check around it, It seem stupid to have 10 if - statemen... (by DrJones)

by akki199421

reading a .pgm file

Hello eveyone, I want to know how to read a .pgm file from my hdd and store it in a 2d array so i can perform some action on the array later on. This is ...

[3 replies] Last: r u chinese? (by csstudent123)

by csstudent123

Binary file and structs

Hello. What is the difference between reading from binary file between the following way: struct aStrct{ int number; }vars ; while(file.good()) ...

[2 replies] Last: pls explain which ones? I used the second one in a code and it is work... (by csstudent123)

by ceruleus

Discussion: Global vs Local Variables with the Same Name

I have what I think is an interesting question. What would be the ouput of the following code? globals.h: int test = 0; main.cpp: #include <ios...

[1 reply] : Do all C++ compilers allow this code? Do you mean in actuality or in ... (by helios)

by MostafaE

C++ Input from txt file size problem

Hello guys. I finally accomplished what I'd asked for earlier. I'm able to input data from txt file to c++ array. the Text file contains around 60,000 ...

[2 replies] Last: Use a std::vector or std::decque instead of an array allocated on ... (by cire)

by Little Bobby Tables

editing attribute values with libxml2?

Hello everyone! I am sorry to bug you, but this site is my last hope. I have tried googling, so, reddit, irc, and various other forums. Anyways, I am writing a ...

[3 replies] Last: [quote=Little_Bobby_Tables]did you edit any of the code? Nope. Also, c... (by norm b)

by azad90

Modify element in node of linked list with value assignment

Hei guys, hope that you could lend a hand to solve this problem I tried to modify staff name with an assignment value of other string but couldn't work it ou...

[3 replies] Last: Never mind.. Now, I understand. Thanks a lot keskiverto (by azad90)

by jonah876

Convert file to base64? (confused)

I'm looking to convert audio, images, video to base64 in c++, and through many searches on the web I've only seem to come up with string > base64. When I vie...

[6 replies] Last: Thank you so much modoran! I looked up the read and write functions an... (by jonah876)

by dominover

Understanding (int*), casts

I can't understand pointer casts ( C Style ). Implicit casts are next, but C pointer casts don't make sense to me. What does this mean (int*)&var or (char...

[8 replies] Last: Thanks for the help helios :) (by dominover)

by lordHaloSkullStingMaster

Precision Errors

solved thank you

[3 replies] Last: Oh, yes. That thingy. const int internalprice = static_cast<int>( 100... (by keskiverto)

by Ryan5920

My asterisk diamond is printing out wrong.

I feel as if I'm so close and I'm just messing up a value somewhere, but I am at a loss as to what I should change. Here is my code: #include "stdafx....

[2 replies] Last: //#include "stdafx.h" // CHANGE ************************************... (by closed account 48T7M4Gy)

by sahilkakkar22

Duration of Temporaries in C++

My doubt is regarding the early destruction of a class object. Usually the destructor should be called at the end of scope in which its constructor was called. ...

[4 replies] Last: Thanks for your kind replies and for explaining the copy elision conce... (by sahilkakkar22)

by nauman123

Keep Getting 0$ as result???

I made a program for this problem= Each employee of a company contributes 6% of his salary towards his retirement account each month. The company will also make...

[5 replies] Last: @cire thanks man !! got it now. (by nauman123)

by prestokeys

Fastest comparison algorithm based on a predefined container? (1,2,3)

Suppose you have defined a container of elements and you want do define a comparison function between elements based on the ordering of the elements in that con...

[49 replies] Last: [quote=prestokeys]Why is the course free? Enjoy it while it lasts. T... (by Smac89)

by danielmccarthy

Better way for HTML parser?

I know my html parser is a hacky mess so does anyone have any advice on how to write a parser more efficiently. Here is the code: http://codejaw.com/8xkvhh

[2 replies] Last: I said write, I want to learn from this (by danielmccarthy)

by bubba89

GNUPLOT HELP

Ive just installed cygwin and im having some problems with gnuplot i have the terminal type set to x11 but ive tried png and a few other. With x11 i get the ...

[1 reply] : That is not a C++ question. Websearch returns stuff like: http://www.... (by keskiverto)

by sya0524

C++ Problems

Can anyone spot what wrong with my code here? I got problem with the loop and Q(remains same = Q1 in output). How to make the random number to be different fo...

[6 replies] Last: yaa.. i want to say that it's at the origin. (by sya0524)

by kam hagh

Mandlebrot Is Only a Circle, whats the problem?

hi, its 2:24 am, and im sad and tired, i gave up, here's code (I use Qt for drawing) #include "mainwindow.h" #include <QDebug> #include <cmath> MainWindow::...

[4 replies] Last: thanks norm, but today while waiting for answer i decided to remake th... (by kam hagh)

by F40R

Rectangle Help

Hey guys, I'm having a bit of trouble here. I am trying to create a rectangle generator using - and |. However, when I run it, I enter the length and width and ...

[no replies]

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