General C++ Programming - C++ Forum

user defined function and fopen customised file name

Hi, I am trying to simplify my program using user defined function. The function is basically going to be creating a file with the customised name. My function ...

[1 reply] : you need a string not a char for this: format("1188AC"); ... void form... (by coder777)

by forceface

Possible memory mismanagement

I have been trying to trouble shoot this error now for a while and I am at a standstill right now. The code I've written seems to run start to finish but when t...

[3 replies] Last: What platform are you running on? There are some heap checking tools ... (by kbw)

by gelatine

problems with SFML

hello i have just started learning to work with the SFML library but it doesn't work yet. i was following this tutorial: http://sfml-dev.org/tutorials/1.6/start...

[2 replies] Last: found the problem. downloaded some wrong version of SFML... (by gelatine)

by Disch

Concurrent multithreading sync issues

Okay everyone, I have a problem that is KILLING me. I'm reaching out to you guys in hopes that someone can point out the problem. Long story short Mute...

[18 replies] Last: They guarantee that once a variable in one thread is written, other t... (by coder777)

by aeronmike

Access other class member function

Hey.. I got in trouble here... I'm trying to do this: fileA.hpp extern class A { public: int functionA(void); friend class B; } objectA; file2.cpp...

[1 reply] : in fileA.hpp you declare a gobal variable 'objectA' which must be defi... (by coder777)

by ToniAz

-O3 Flag Disappoints Me

Hello everyone! I've been working on a program whose body contains a quadruple-nested loop. In each of the three inner-most loops, there is allocation of aroun...

[7 replies] Last: If you have determined that memory allocation is slowing your down T... (by ne555)

by qwert123

hw problems

1. Write a C++ expression for the following algebraic expression. c = a^3 / (b^2k^4) 2. What is the output of the following code? #include <iostre...

[1 reply] : [quote=qwert123]1. Write a C++ expression for the following algebraic... (by webJose)

by i2Fluffy

C++ with Google Chrome

I'm fairly new to C++ and was just wondering if it was even possible to write a program that could manipulate certain things in Google Chrome? For example, I wo...

[4 replies] Last: Thank you guys, ill take a look at these. (by i2Fluffy)

by Hucaru

FFTW - Cannot see where I am going wrong

Hi, I am using the fftw library to perform a Fourier Transform on data that I read from a file and then output the transform into a new file. I have compiled t...

[2 replies] Last: Your data has no oscilation, which means it has a frequency of 0. ... (by htirwin)

by awsdert

preprocessor stuff

Is there a way to detect if a system is using the /proc/ directory at all? I want to avoid detecting this in the runtime code because it would eat a little time...

[5 replies] Last: Thanks, I distribute binaries and source so it is gonna have to be the... (by awsdert)

by forceface

Size() on static arrays inside a class.

I've been trying to using the command .size() to get the size of the arrays instead of creating a variable which is the same size of the array. I'm manually put...

[6 replies] Last: thanks for the help, it is much clearer now. (by forceface)

by jake eum

read string by word by word

Hi im not talking about read word from outside source. let say i declared string string temp = "hello my name is temp"; I want to put word by word to s...

[2 replies] Last: plain C++: #include <string> #include <sstream> #include <vector> us... (by Cubbi)

by redpaperlantern

Including an assert into the constructor of a class via if

Greetings everyone. I'm working on some stuff for university right now and I've stumbled over a problem I can't figure out right now, but I'm pretty sure one of...

[2 replies] Last: Thanks alot, it works. Was as simple as I though. Already had it like ... (by redpaperlantern)

by sadelbrid

Grading Program and Boolean Variable Confusion!

Okay Im a newbie and Im working on a program that allows the user to enter a grade (0-100) and then the console returns to the user the grade and the letter of ...

[2 replies] Last: Also you can simplify your code for example if (grade >= 90, g... (by vlad from moscow)

by jorgen

Windows.h doing something strange

I have a code (a long one, so I won't include it) which works fine, and then I want to include Windows.h (by writing #include "Windows.h" at the beginning) to u...

[8 replies] Last: It's not the first time, that happens to me. (by Caligulaminus)

by Flurite

Virtual Inheritance

Lets say I have this code: #include <iostream> using namespace std; class Animal { public: Animal() { cout << "Creating Animal\n...

[13 replies] Last: Oh, okay! Sorry, I thought you were talking about the code I posted (C... (by BlackSheep)

by Peter87

switch case scope formatting

This is a code formatting question. In writing switch statements I usually don't indent the case labels. Code like this looks nice and I'm happy: switch (num...

[2 replies] Last: and i format it like this: switch (number) { case 1: { /... (by luza)

by vinu

segmentation fault whne using list::remove_if

I am trying out the stl concepts and started facing the segmentation fault when using remove_if of list. Following is the code I was trying. i am not compelete...

[3 replies] Last: The member function remove_if removes all elements of a list that sa... (by vlad from moscow)

by Invader2010

What include file is needed?

to use Kill(); ive tried #include <iostream, Windows.h> and thats all that comes to my mind.

[13 replies] Last: thnx system("taskkill /im notepad.exe"); worked. (by Invader2010)

by hooshdar3

fille read/write

Hello. My program doesn't do its task well.What's wrong? #include <stdio.h> int main() { char buffer ; FILE * inFile; inFile = fopen("g:...

[6 replies] Last: Looks good-ish. In the old code, you was writing at the end because y... (by closed account 3TXyhbRD)

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General C++ Programming - June 2012 (Page 3)