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Why is volatile needed in C?
...ef struct
{
int command;
int data;
int isbusy;
} MyHardwareGadget;
Now you want to send some command:
void SendCommand (MyHardwareGadget * gadget, int command, int data)
{
// wait while the gadget is busy:
while (gadget->isbusy)
{
// do nothing here.
}
// set data first:
...
What is Haskell used for in the real world? [closed]
...ses for this
language?
Rapid application development.
If you want to know "why Haskell?", then you need to consider advantages of functional programming languages (taken from https://c2.com/cgi/wiki?AdvantagesOfFunctionalProgramming):
Functional programs tend to be much more terse than t...
Is it bad practice to have a constructor function return a Promise?
...ew Engine()
engine.displayPosts();
If that task is asynchronous, you can now easily return a promise for its results from the method, to easily wait until it is finished.
I would however not recommend this pattern when the method (asynchronously) mutates the instance and other methods depend on th...
no gravity for scrollview. how to make content inside scrollview as center
...;/ScrollView>
Just remember that the reason it is being centered here now is because of the android:gravity on the LinearLayout since the ScrollView will stretch the LinearLayout so keep that in mind depending on what you add to the layout.
Another good read on ScrollView although not about ce...
Change the Target Framework for all my projects in a Visual Studio Solution
...ckup settings (will create a backup by default)
Start Replacing (Ctrl+R)
Now If for some reason you need to do this in code, I would probably be able to do that as well (it's how I found this question). In that case, please request it in a comment.
...
Rotating a point about another point (2D)
I'm trying to make a card game where the cards fan out. Right now to display it Im using the Allegro API which has a function:
...
How to set custom location for local installation of npm package?
...
Variable name: %NPM_HOME%
Variable value: C:\\SomeFolder\\SubFolder\\
Now, set the config values to the new folders (examplary file names):
Set the npm folder
npm config set prefix "%NPM_HOME%\\npm"
Set the npm-cache folder
npm config set cache "%NPM_HOME%\\npm-cache"
Set the npm tem...
PHP session lost after redirect
...the session forward.
Make sure your file extension is .php (it happens!)
Now, these are the most common mistakes, but if they didn't do the trick, the problem is most likely to do with your hosting company. If everything works on localhost but not on your remote/testing server, then this is most l...
Why doesn't c++ have &&= or ||= for booleans?
...any parts of my answer. Please tell me if my answer is more understandable now? (about your comment purpose) Cheers, See you ;-)
– olibre
Jul 19 '13 at 11:39
...
Python's many ways of string formatting — are the older ones (going to be) deprecated?
...mal deprecation no longer on the cards, but the current docs are openly acknowledging that % formatting at least has some "benefits" over the other approaches.
I'd infer from all this that the movement to deprecate or remove % formatting has not only faltered, but been defeated thoroughly and perma...