In C++ is there a predefined library function that will return the size of RAM currently available on a computer a program is being run on, at run-time?
For instance, if an object is 4bytes, then can we divide the available virtual memory by 4 bytes to give an estimate of how many more objects could be stored by the program safely?
I have used the sizeof() function to return the size of objects within my program.
Thanks
Hello there,
I am creating a class in C# which eventually will be part of a library that other uses can use.
A user of this class has to set some properties and then use a public method to retrieve the results. What shall I do when a user calls the method without setting all the properties? Throw exception and expect the user to catch it?
Thanks
I'm building a class library that will have some public & private methods. I want to be able to unit test the private methods (mostly while developing, but also it could be useful for future refactoring).
What is the best way to do this?
Hi everyone,
I have a UITableView with a sectionIndexTitles, and when I do a rotation, some cells are displayed like if I were on the previous orientation. When I don't have sectionIndexTitles, there is no problem. Is it just a bug in a library, or is there a secret tip I don't know to fix it ?
Tank you
Is there any fast method to make a transposition of a rectangular 2D matrix in Python (non-involving any library import).? Say, if I have an array X=[[1,2,3], [4,5,6]] I need an array Y which should be a transposed version of X, so Y=[[1,4],[2,5],[3,6]].
This might seem like a bit of a design/css question but i really need some help.
This is the page http://library.permilia.com/Gavin/version2.0_beta/lead.html
It works on every browsers imaginable except chrome.
By it works i mean it applies a class .error that sets the borders to 1px solid #f00 which is a red border. In chrome for some reason you cannot change it no matter what!
Anybody got any ideas?
Where the To-field is a textbox that also contains a dropdown, where each new contact is added to the text field? Similar to the facebook to field, where a box is created for each receiver.
Is there such a library or component out there?
Thanks
After reading the MSDN article about proper user interface here:
http://msdn.microsoft.com/en-us/library/aa974176.aspx
I want to modify the message boxes I use in my applications to reflect those guidelines (for example, have the Main Instructions in a larger font, better named Buttons, etc...).
My question is, is there an API that allows you to easily build those kind of message boxes (a la user32\MessageBox()), or do you actually have to build your own message boxes which follow the guidelines?
A senior developer in my team used traditional C-style callbacks in our Qt application instead of using Qt signal/slot mechanisms.
My first reflex would be to refactor his code and use Qt signal/slot instead.
Is there any good reasons to use callbacks in a Qt application/library?
Thanks.
I'm trying to use the OpenCA library in a C++ application. However, when including the file pki_x509_data_st.h the following code fragment is encountered:
typedef struct pki_x509_callbacks_st {
/* ---------------- Memory Management -------------------- */
void * (*new) (void );
void (*free) (void *x );
void * (*dup) (void *x );
This won't compile because of the "new" pointer declaration.
How can I make it work?
I have a Class that needs to obtain a reference to it's application's AssetManager. This class does not extend any sort of android UI class, so it doesn't have a getContext() method, or anything similar. Is there some sort of static Context.getCurrentApplicationContext() type of method?
To clarify: my class is intended to be used like a library, for other applications. It has no associated AndroidManifest.xml or control over the context which is calling it.
Hi,
I am using a third party library that provide some callbacks for a widget, but I'm not sure what the callback parameter objects are (no docs on them).
Is there a way to just dump all the attributes of an object in javascript, then print them using alert(), maybe? I just want to see what methods and attributes they contain,
Thanks
How can I view and override the full definition for built in classes? I have seen the library docs but am looking for something more.
For e.g. is it possible to override the Array Class such that the base index starts from 1 instead of 0, or to override .sort() of list to a sorting algorithm of my own liking?
Not completely a programming question, but its close enough so here goes:
In Mac OS I'll put user-specific files for my app in ~/Library/Application Data/{MyApp}/ and in *nix I'll put them in ~/.{MyApp}/ - where should I put them for Windows?
I'll be using Ruby's File.expand_path to get to this directory, so if there's a windows equivalent of ~ then that's fine.
(Answers for Windows XP, Vista and 7 would be appreciated if they're not the same)
I need to be able to raise different types of audio notifications to the user. I need an "ok" and an "error" type sounds, I was hoping to be able to raise a simple beep and a critical stop type sound but I can only find the Beep() command which doesn't allow for differing sounds. Is there a library that does what I need or will I need to roll my own using the system wavs.
Is there any good solution for ajax enabled Grid with pageing and sorting which only brings the required data from database? I mean it should only bring the data from the database which is to be displayed on the particular page number of the grid.
I looked at this. It looks good. But I just thought if anyone has created something better using Google's or Yahoo's javascript library or using any good features of asp.net 3.5.
How to easily change the format of URL in a right way:
/comment/10.js?param1=6
to
/comment/10?param1=6
Preferrably with some URL library or so, not with regexps.
I need a simple floating point rounding function, thus:
double round(double);
round(0.1) = 0
round(-0.1) = 0
round(-0.9) = -1
I can find ceil() and floor() in the math.h - but not round().
Is it present in the standard C++ library under another name, or is it missing??
Hi,
Is sequential coupling (http://en.wikipedia.org/wiki/Sequential_coupling) really a bad thing in code?
Although it's an anti-pattern, the only risk I see is calling methods in the wrong order but documentation of an API/class library with this anti-pattern should take care of that. What other problems are there from code which is sequential? Also, this pattern could easily be fixed by using a facade it seems.
Thanks
I've had a big problem in some library code, which I've pinned down to a single statement:
System.out.println((String) null);
Ok, the code doesn't actually look like that, but it certainly calls println with a null argument. Doing this causes my whole applicaio to throw an unexpected NullPointerException.
In general, should println throw this exception under that circumstance, or is this non-standard behavior due to a poor implementation of the out instance?
It starts to bore me that I always have to ask questions about trifles.
I simply need a list of all plugged in USB devices and have the user select one to let the console application receive any data the USB device sends.
I can then start playing around with the data in my program.
I don't want to use library's, only standard C++ functions, and the program should work in Windows 98.
I am working on a project where I need to embed a web server into my C++ application. I am looking for an open-source library supporting SSL, written in C or C++ and with a licensing scheme that will allow me to link it into my existing closed source code. Any suggestions of specific products or where to look first?
Hi All,
Please somebody help me.
I want to compress a folder (which contains images & text files as well as few sub folders) in zip,rar,tar format & then give it for download to user.
Is there any class/api/library/code to do so.
I am working on Joomla CMS.
Regards,
Shahu.