I've been working on a non-blocking IO library, and wanted to get some feedback on my generic event loop class. The goal is that this class will manage select() calls as well as other "events" which must occur on the same thread that the IO is processing.
I'm hoping that this can scale to a ...
This is just a wondering I had while reading about interpreted and compiled languages.
Ruby is no doubt an interpreted language, since source code is compiled by an interpreter at the point of execution.
On the contrary C is a compiled language, as one have to compile the source code first ac...
Take C# and VB. There are syntax differences, sure. There are some other language-specific semantic differences, but they're both object-oriented languages that even make use of all the same libraries (.NET framework) and probably compile into mostly identical byte code.
I'm sure there are some .NET experts that can tell you about a few significant differences in the language semantics or compile code, but the differences are going to be relatively few.
got this email from a co-worker: I downloaded the <redacted> application, but it is not working properly. Some kinda goofy Visual Studio screen comes up with some XML in it.
response: It looks like you've opened the config file instead of the application. Please try opening the application.
Well, I got an email from some girl saying "I just put some notes in OneNote. I closed OneNote. My notes had better be saved." - only with lots of CAPS and bad grammar and stuff.
If she would have bothered reading my nice tutorials, she would have known the answer.
If you want suggestions for improvement, ask for that specific help on codereview.stackexchange.com. If you want to share your code, post it on a blog, github, codeplex, etc. — Peter Duniho55 secs ago
I have designed a small method to generate a salt for a password. All this does is create a random salt. it does nothing to add it to the password. I have a few questions regarding my very simple method:
Is this a secure generator?
Currently, it encodes in base64. Is this an issue in any way?
A...
As for example i have this data in csv file which has the column names as:
"people", "committers", "repositoryCommitters
The "people" column has the ids from 1-5923 and i want to match the ids if they have the common repository from the "repositoryCommitters" column like for example:
people | r...
I created a simple slide-in animation for my game. The box is shown at the bottom with character dialog.
The animation is as follows:
A square slides in from the left, then waits a bit, then expands to its full width.
The box is made using Unity's GUI Box. The timing is extended for debugging ...
I have this code to get data from sumo logic and other services.
core.clj has this, which parses the arguments and routes it to the right function in route.clj
(def cli-options
[
["-a" "--app APPNAME" "set app. app can be:
sumologic or jira"]
["-...
I'm looking at the source of a web application and believe I can see a case where multiple threads can interfere with each other.
The code goes something like this
CustomItemType myVarA = (CustomItemType) this.Session["VAR_1"];
' Do some work on the properties of VAR_1
int num2 = checked (myVa...
Below is my solution to finding the minimum product sub-interval.
It passed 8/12 or so test cases, but the other test cases timed out if they hadn't finished within 2 seconds. When I compile this code as Release, optimized, and to target x64, it takes about 7.6 seconds to finish on large input s...
@Hosch250 Personally, I would put the TimerCallbackinto its own method and wouldn't "inline" it like it is done. Makes the locking more obvious. Second I would use a different object for locking which makes it clear from its name that it is used only for locking.
A good answer to a locking method regarding the use of a object to lock with.
How and what you lock on depends upon what you're doing.
Let's say that you're working with a device of some kind - say a coffee maker. You might have a class that looks like this:
public CoffeeMaker {
private IntPtr _coffeeHandle;
private Object _lock = new Object();
}
In this case,...
So you should probably give an example of what you know is working and ask for a better (less code, faster, ...) approach. Depending on what you have you might even post this question on codereview. — Margedjust now
@Tichodroma I am not sure the problem is with a code (I am not asking people to review my code), may be I am just using the wrong algorithm. Also the problem with code review is that there is not a lot of people there and it is hard to find people knowledgable in go there. — Salvador Dali46 secs ago
The code looks too examplish to be re-viewable, which would make it off-topic for CodeReview. Questions about which algorithm to use should not be posted there. — Mast10 secs ago
I've been working, for a month, on a opengl library called alpha++ : basically, it is a framework that allows the user to create 3D scenes easily.
I would like to ask your advice on how I could make the user interface simpler: Here is the way I use my classes at the moment in Main.cpp :
Main....
before you say anything I don't want the solution, I just want to understand the concept in which I would be able to solve it on my own
Problem Statement:
NAtural DIAlogue team at Orange labs has an abbreviation "Nadia Team".
This abbreviation causes a big problem for them in Egypt as a lot of...
If you need help with a specific problem: SO. If you want a review of your current code: CR. Although you could post it here and just wait and see, but that's not really SE style AFAIK.
Just an update: the current proposed workarounds are 1) make the window 1pixel bigger/smaller than real fullscreen; or 2) add a 1px border via WS_BORDER (see here). Of course none of those are really optimal :( — peppe53 secs ago
I recently discovered this (countdown.js) beautiful script. But it is not documented. So I have huge difficulty in trying to understand its algorithm.
BTW I am a complete novice in javascript and English ;).
Anyway, I am trying to set a counter just like the one used by amazon for shipping time...
I have to do checks on remote desktops using a list of urls. Can you give me an example of how I use this in a notepad, using IFrame, HTML and Java?
Please help this scrub :)
hey this my solution to
10424 Love Calculator
i tried to submit yesterday but it judged as "Presentation Error"
#include<iostream>
#include<iomanip>
#include<cctype>
int sumDigit(int x);
using namespace std;
int main(){
string male,female ;
char char_alpha[26] = {'a','b','c','d','e','f','g'...
@PatrickHofman This seems to be example code which would be off-topic for Code Review. It would be a lot less misleading to vote to close as "too broad", because that is what it is for Stack Overflow. This does not belong at Code Review. — Simon André Forsberg18 secs ago
i try to extract some data from DB based on sql condition each time 5000 record. these data is different from text to char. what i try to do it is to save all data that match the condition in one Matlab file by using append use various way but does not work?
clear;
num_rows=0;
Fcount=0;
num_db=1...
I am here to discuss what are the possible improvement can be made in order to make the following code covering all the principles of programming paradigm ( SOLID , DRY ...etc ). Basically, I am practicing Design Patterns.
public class Product { }
public interface IProduct
{
int name { ...
One of them sits right next to me and was recruited in similar fashion to me. The other, I don't know. He works in Tennessee... and I found him by searching for people with "Metova" in their profile.
It appears that your Answer struct is basically being used as a global singleton. It's hard to tell, because not everything is included here, but you've included your loaderVC, and the logic in that is hard to follow.
The loaderVC appears to exist purely for the sake of taking care of some of t...
Yeah, that annoys me. As someone looking for a job, I don't want to hear your whole (completely fictional) story (sales pitch). I want to know what you're looking for in a new employee.
public String toAlbumSongCount() {
StringBuilder builder = new StringBuilder();
final int albumCount = albumCount();
final int songCount = songCount();
builder.append( albumCount );
//Append albums instead of album if albumCount is greater than 1
builder.append( (albumCo...
I don't think these are any major improvements, but there are many small things that I would change.
albumCount and songCount is both the name of a variable, and of a method
Pluralization can be extracted to a separate method
Remove unnecessary comments and spaces
So here's what I would do:
...
This is the pseudocode for this algorithm :
SQUARE-MATRIX-MULTIPLY-RECURSIVE(A,B)
n = A.rows
let C be a new n* n matrix
if n ==1
c11 = a11 b11
else partition A, B, and C
C11 = SQUARE-MATRIX-MULTIPLY-RECURSIVE(A11,B11) +
SQUARE-MATRIX-MULTIPLY-RECURSIVE(A12,B21)
C12 = SQUARE-MATRIX-MU...
I have written this program according to the specification of the question and have tested each method individually and they work. However when running the program as a whole, it only prints out the highest value method result. Can someone explain what I am doing wrong.
I also have another quer...
Why doesn't this work? Can a newbie get some help?
while(!k && DATA[q])
if DATA[q] == 'aa' && DATA[p] == 'aa'
pl = DATA[r]
for i in 0..pl
PACK[i] = DATA[i+4]
end
k+=1 #end while
else
q++
p++
r++
e...
I have to edit a config automatically before starting a service in a docker container (a storm supervisor), and I want to append something like this in /opt/storm/conf/storm.yaml : storm.local.hostname: 1.1.1.1 (extracted from /etc/hosts)
What I currently do is that :
echo -n "storm.local.host...
Source/Context:
What is the copy-and-swap idiom?
Rule-of-Three becomes Rule-of-Five with C++11?
The C++ Programming Language 4th Edition June 2013 -
Section 17.1 Introduction 483
class X {
X(Sometype); // ‘‘ordinar y constructor’’: create an object
X(); // default constructor
X(const X&
@200_success C++ is not my thing, but, the primary question appears to be: "One thing I don't fully understand: Why use mArray(mSize ? new int[mSize]() : 0) instead of: mArray(mSize) ?", and that is the bulk of what the answer has focused on.
As you will soon see I'm not the best jQuery developer out there (I'm a designer). At best, I make a prototype barely work. That said, I envisioned this Persona-slider which is just like any other jQuery header sliders out there, but slightly different.
See it in action:
http://ghostpost.pl/sli...
I was wondering if it's considered 'good practice' to using #define in order to make code readable.
For example, I have a function that requires me to pass integer values that hold absolutely no meaning.
Instead of:
ret_obj.set_val(2, board_obj->get_val(2);
I could do:
#define KINGS 2
ret_o...
I have a project in my mind for quite some time, and it requires me to create dynamic objects.
Usually, casting an array to object does the trick (e.g.: (object)array('test'=>5)). But sometimes, we still want the magic methods to fire up. For that, I have developed a class.
It supports the magi...
I've been working on a non-blocking IO library, and wanted to get some feedback on my generic event loop class. The goal is that this class will manage select() calls as well as other "events" which must occur on the same thread that the IO is processing.
I'm hoping that this can scale to a ...
This is just a wondering I had while reading about interpreted and compiled languages.
Ruby is no doubt an interpreted language, since source code is compiled by an interpreter at the point of execution.
On the contrary C is a compiled language, as one have to compile the source code first ac...
I created a simple slide-in animation for my game. The box is shown at the bottom with character dialog.
The animation is as follows:
A square slides in from the left, then waits a bit, then expands to its full width.
The box is made using Unity's GUI Box. The timing is extended for debugging ...
I have this code to get data from sumo logic and other services.
core.clj has this, which parses the arguments and routes it to the right function in route.clj
(def cli-options
[
["-a" "--app APPNAME" "set app. app can be:
sumologic or jira"]
["-...
I'm looking at the source of a web application and believe I can see a case where multiple threads can interfere with each other.
The code goes something like this
CustomItemType myVarA = (CustomItemType) this.Session["VAR_1"];
' Do some work on the properties of VAR_1
int num2 = checked (myVa...
How and what you lock on depends upon what you're doing.
Let's say that you're working with a device of some kind - say a coffee maker. You might have a class that looks like this:
public CoffeeMaker {
private IntPtr _coffeeHandle;
private Object _lock = new Object();
}
In this case,...
I've been working, for a month, on a opengl library called alpha++ : basically, it is a framework that allows the user to create 3D scenes easily.
I would like to ask your advice on how I could make the user interface simpler: Here is the way I use my classes at the moment in Main.cpp :
Main....
I recently discovered this (countdown.js) beautiful script. But it is not documented. So I have huge difficulty in trying to understand its algorithm.
BTW I am a complete novice in javascript and English ;).
Anyway, I am trying to set a counter just like the one used by amazon for shipping time...
I have to do checks on remote desktops using a list of urls. Can you give me an example of how I use this in a notepad, using IFrame, HTML and Java?
Please help this scrub :)
hey this my solution to
10424 Love Calculator
i tried to submit yesterday but it judged as "Presentation Error"
#include<iostream>
#include<iomanip>
#include<cctype>
int sumDigit(int x);
using namespace std;
int main(){
string male,female ;
char char_alpha[26] = {'a','b','c','d','e','f','g'...
I am here to discuss what are the possible improvement can be made in order to make the following code covering all the principles of programming paradigm ( SOLID , DRY ...etc ). Basically, I am practicing Design Patterns.
public class Product { }
public interface IProduct
{
int name { ...
It appears that your Answer struct is basically being used as a global singleton. It's hard to tell, because not everything is included here, but you've included your loaderVC, and the logic in that is hard to follow.
The loaderVC appears to exist purely for the sake of taking care of some of t...
public String toAlbumSongCount() {
StringBuilder builder = new StringBuilder();
final int albumCount = albumCount();
final int songCount = songCount();
builder.append( albumCount );
//Append albums instead of album if albumCount is greater than 1
builder.append( (albumCo...
I don't think these are any major improvements, but there are many small things that I would change.
albumCount and songCount is both the name of a variable, and of a method
Pluralization can be extracted to a separate method
Remove unnecessary comments and spaces
So here's what I would do:
...
This is the pseudocode for this algorithm :
SQUARE-MATRIX-MULTIPLY-RECURSIVE(A,B)
n = A.rows
let C be a new n* n matrix
if n ==1
c11 = a11 b11
else partition A, B, and C
C11 = SQUARE-MATRIX-MULTIPLY-RECURSIVE(A11,B11) +
SQUARE-MATRIX-MULTIPLY-RECURSIVE(A12,B21)
C12 = SQUARE-MATRIX-MU...
I have to edit a config automatically before starting a service in a docker container (a storm supervisor), and I want to append something like this in /opt/storm/conf/storm.yaml : storm.local.hostname: 1.1.1.1 (extracted from /etc/hosts)
What I currently do is that :
echo -n "storm.local.host...
Source/Context:
What is the copy-and-swap idiom?
Rule-of-Three becomes Rule-of-Five with C++11?
The C++ Programming Language 4th Edition June 2013 -
Section 17.1 Introduction 483
class X {
X(Sometype); // ‘‘ordinar y constructor’’: create an object
X(); // default constructor
X(const X&
I was wondering if it's considered 'good practice' to using #define in order to make code readable.
For example, I have a function that requires me to pass integer values that hold absolutely no meaning.
Instead of:
ret_obj.set_val(2, board_obj->get_val(2);
I could do:
#define KINGS 2
ret_o...
I have a project in my mind for quite some time, and it requires me to create dynamic objects.
Usually, casting an array to object does the trick (e.g.: (object)array('test'=>5)). But sometimes, we still want the magic methods to fire up. For that, I have developed a class.
It supports the magi...
