Search Results

Search found 3518 results on 141 pages for 'smooth operator'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 21/141 | < Previous Page | 17 18 19 20 21 22 23 24 25 26 27 28  | Next Page >

  • Performance difference in for loop condition?

    - by CSharperWithJava
    Hello all, I have a simple question that I am posing mostly for my curiousity. What are the differences between these two lines of code? (in C++) for(int i = 0; i < N, N > 0; i++) for(int i = 0; i < N && N > 0; i++) The selection of the conditions is completely arbitrary, I'm just interested in the differences between , and &&. I'm not a beginner to coding by any means, but I've never bothered with the comma operator. Are there performance/behavior differences or is it purely aesthetic? One last note, I know there are bigger performance fish to fry than a conditional operator, but I'm just curious. Indulge me. Edit Thanks for your answers. It turns out the code that prompted this question had misused the comma operator in the way I've described. I wondered what the difference was and why it wasn't a && operator, but it was just written incorrectly. I didn't think anything was wrong with it because it worked just fine. Thanks for straightening me out.

    Read the article

  • c++ specialized overload?

    - by acidzombie24
    -edit- i am trying to close the question. i solved the problem with boost::is_base_and_derived In my class i want to do two things. 1) Copy int, floats and other normal values 2) Copy structs that supply a special copy function (template T copyAs(); } the struct MUST NOT return int's unless i explicitly say ints. I do not want the programmer mistaking the mistake by doing int a = thatClass; -edit- someone mention classes dont return anything, i mean using the operator Type() overload. How do i create my copy operator in such a way i can copy both 1) ints, floats etc and the the struct restricted in the way i mention in 2). i tried doing template <class T2> T operator = (const T2& v); which would cover my ints, floats etc. But how would it differentiate from structs? so i wrote T operator = (const SomeGenericBase& v); The idea was the GenericBase would be unsed instead then i can do v.Whatever. But that backfires bc the functions i want wouldnt exist, unless i use virtual, but virtual templates dont exist. Also i would hate to use virtual I think the solution is to get rid of ints and have it convert to something that can do .as(). So i wrote something up but now i have the same problem, how does that differentiate ints and structs that have the .as() function template?

    Read the article

  • C++ compiler unable to find function (namespace related)

    - by CS student
    I'm working in Visual Studio 2008 on a C++ programming assignment. We were supplied with files that define the following namespace hierarchy (the names are just for the sake of this post, I know "namespace XYZ-NAMESPACE" is redundant): (MAIN-NAMESPACE){ a bunch of functions/classes I need to implement... (EXCEPTIONS-NAMESPACE){ a bunch of exceptions } (POINTER-COLLECTIONS-NAMESPACE){ Set and LinkedList classes, plus iterators } } The MAIN-NAMESPACE contents are split between a bunch of files, and for some reason which I don't understand the operator<< for both Set and LinkedList is entirely outside of the MAIN-NAMESPACE (but within Set and LinkedList's header file). Here's the Set version: template<typename T> std::ostream& operator<<(std::ostream& os, const MAIN-NAMESPACE::POINTER-COLLECTIONS-NAMESPACE::Set<T>& set) Now here's the problem: I have the following data structure: Set A Set B Set C double num It's defined to be in a class within MAIN-NAMESPACE. When I create an instance of the class, and try to print one of the sets, it tells me that: error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'const MAIN-NAMESPACE::POINTER-COLLECTIONS-NAMESPACE::Set' (or there is no acceptable conversion) However, if I just write a main() function, and create Set A, fill it up, and use the operator- it works. Any idea what is the problem? (note: I tried any combination of using and include I could think of).

    Read the article

  • Puppet classes out of order despite explicit arrow operator use

    - by Alexandr Kurilin
    Absolute puppet beginner here. I'm experiencing an interesting behavior with my puppet manifests and would love to know what I'm doing wrong. Let's for example say I'm configuring the instance with the following ordered classes: class { 'update_system': } -> class { 'facter': } -> class { 'user_sshkey': user => 'ubuntu', type => 'rsa', } -> class { 'tmux': user => 'ubuntu', } -> class { 'vim': user => 'ubuntu', } -> class { 'bashrc': user => 'ubuntu' } -> notify {"Configuring DB role":} -> class { 'postgresql': } when I run the manifest with the --debug switch, by looking at notify statements I can see the classes be executed in the following order: 1. update_system starts 2. a cron type inside of postgresql class (the very **last** class in that ordered list above) is executed 3. postgres::install starts 5. facter starts installing 6. postgres::configure and postgres::service start 7. the vim class is executed 8. "Configuring DB role" notification is made. All the way at the end here. etc Basically the thing is all over the place, the order doesn't seem to follow the arrow operators in any way. I'm guessing I'm missing something here that would force the classes to execute one at a time. Could it be that I'm missing some kind of anchor pattern here? Invalid containment?

    Read the article

  • VoIP - need setup ip network with our SIP operator

    - by evgeniy.labusnkiy
    Need to make next one: for ex i'm now in UAE, but i need to make a call to my girlfriend who is in Ukraine. I need to find the way how can i make the connection to my home router and make the call from VoIP gateway using my standard phone network in Ukraine. I have some imagination about this, to do like this: Connect to router or VoIP gateway (how? soft?) using inet - Gateway make a call using standard phone line in my country. Any ideas? Best practice? What devices i need to make this? Pay attention that i don't want to use any SIP providers. Thats a lot!

    Read the article

  • Get-QADComputer -LdapFilter & NOT operator

    - by dboftlp
    I'm having issues excluding an OU from my LDAP filter $DaysAgo = (Get-Date).AddDays(-31) $ft = $DaysAgo.ToFileTime() Get-QADComputer -SizeLimit 0 -IncludeAllProperties -SearchRoot 'DC=My,DC=Domain,DC=Local' -LdapFilter "(&(objectcategory=computer)(lastLogonTimeStamp<=$ft) (!(ou:dn:=DisabledPCs))(|(operatingsystem=Windows 2000 Professional) (operatingSystem=Windows XP*)(operatingSystem=Windows 7*) (operatingSystem=Windows Vista*)(operatingsystem=Windows 2000 Server) (operatingsystem=Windows Server*)))" I'm looking to query for all Windows OS systems that haven't logged in to AD for more than 31 days & that are not already in the OU "DisabledPCs", which is where I'll be moving them to. When I run it now, I'm getting all the systems I'm looking for, including those in the "DisabledPCs" OU... I've tried several variations including: (&(!(ou:dn:=DisabledPCs))) As well as putting it in different locations in the filter (not that I thought it would make a difference, but I obviously don't know that...) Thanks in advance for any help, -dboftlp

    Read the article

  • Scrolling a Canvas smoothly in Android

    - by prepbgg
    I'm new to Android. I am drawing bitmaps, lines and shapes onto a Canvas inside the OnDraw(Canvas canvas) method of my view. I am looking for help on how to implement smooth scrolling in response to a drag by the user. I have searched but not found any tutorials to help me with this. The reference for Canvas seems to say that if a Canvas is constructed from a Bitmap (called bmpBuffer, say) then anything drawn on the Canvas is also drawn on bmpBuffer. Would it be possible to use bmpBuffer to implement a scroll ... perhaps copy it back to the Canvas shifted by a few pixels at a time? But if I use Canvas.drawBitmap to draw bmpBuffer back to Canvas shifted by a few pixels, won't bmpBuffer be corrupted? Perhaps, therefore, I should copy bmpBuffer to bmpBuffer2 then draw bmpBuffer2 back to the Canvas. A more straightforward approach would be to draw the lines, shapes, etc. straight into a buffer Bitmap then draw that buffer (with a shift) onto the Canvas but so far as I can see the various methods: drawLine(), drawShape() and so on are not available for drawing to a Bitmap ... only to a Canvas. Could I have 2 Canvases? One of which would be constructed from the buffer bitmap and used simply for plotting the lines, shapes, etc. and then the buffer bitmap would be drawn onto the other Canvas for display in the View? I should welcome any advice! Answers to similar questions here (and on other websites) refer to "blitting". I understand the concept but can't find anything about "blit" or "bitblt" in the Android documentation. Are Canvas.drawBitmap and Bitmap.Copy Android's equivalents?

    Read the article

  • Modulo operator in Objective-C returns the wrong result

    - by Greg Maletic
    I'm a little freaked out by the results I'm getting when I do modulo arithmetic in Objective-C. -1 % 3 is coming out to be -1, which isn't the right answer: according to my understanding, it should be 2. -2 % 3 is coming out to -2, which also isn't right: it should be 1. Is there another method I should be using besides the % operator to get the correct result?

    Read the article

  • Why can't I use interface with explicit operator?

    - by theburningmonk
    Hi, I'm just wondering if anyone knows the reason why you are not allowed to use interfaces with the implicit or explicit operators? E.g. this raises compile time error: public static explicit operator MyPlayer(IPlayer player) { ... } "user-defined conversions to or from an interface are not allowed" Thanks,

    Read the article

  • What does the operator "<<" mean in C#?

    - by Kurru
    I was doing some basic audio programming in C# using the NAudio package and I came across the following expression and I have no idea what it means, as i've never seen the << operator being used before. So what does << mean? Please give a quick explaination of this expression. short sample = (short)((buffer[index + 1] << 8) | buffer[index + 0]);

    Read the article

  • assign operator to variable in python?

    - by abhilashm86
    Usual method of applying mathematics to variables is a * b Is it able to calculate and manipulate two operands like this? a = input('enter a value') b = input('enter a value') op = raw_input('enter a operand') then how do i connect op and two variables a and b?? i know i can compare op to +, -, %, $ and then assign and compute.... but can i do something like a op b , how to tell compiler that op is an operator?? any tweaks possible?

    Read the article

  • like operator in linq

    - by Luca Romagnoli
    i need to use the like operator in a linq query for this: timb = time.Timbratures.Include("Anagrafica_Dipendente") .Where(p => p.Anagrafica_Dipendente.Cognome + " " + p.Anagrafica_Dipendente.Nome like "%ci%"); How can i do?

    Read the article

  • An interview question on conditional operator

    - by nthrgeek
    I recently encountered with this question: How to reduce this expression: s73?61:60;. The hint given was that Instead of using conditional operator we could use a simple comparison which will work fine. I am not sure but I think it is possible with some GCC extension,although I am unable to figure it out myself. EDIT:The whole expression is this : s-=s73?61:60

    Read the article

  • 'And' operator in Linq

    - by Ani
    I have a query that prints userid in label1 when username is entered.Works fine; but i want to write query for username and password that prints userid. so how can i write it? i tried writing using 'and' operator but dont seems to work. int id = (from auser in lq.logins where auser.username == userNameString //&& auser.Password =pwdString select auser.userid).SingleOrDefault(); label1.Text = id.ToString(); Thanks Ani

    Read the article

  • like operator issue

    - by Domnic
    I have dom table select * from dom dom table details: id name skills 1 dom c,c++ here i want to retrive query using like operator select * from dom where skills like '%c,c++%' then i got the desired result.....thats not a problem suppose if i want to use the belove query select * from dom where skills like '%C++,C%' i didnt get result So i have to show details even if i search reverse order in database how can i?

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 17 18 19 20 21 22 23 24 25 26 27 28  | Next Page >