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How to set initial size of std::vector?
...20000 pointers, so you can insert (up to) that many without it having to reallocate.
At least in my experience, it's fairly unusual for either of these to make a huge difference in performance--but either can affect correctness under some circumstances. In particular, as long as no reallocation tak...
Cocoa Core Data efficient way to count entities
...ng NSManagedObjectContext *moc
NSFetchRequest *request = [[NSFetchRequest alloc] init];
[request setEntity:[NSEntityDescription entityForName:entityName inManagedObjectContext:moc]];
[request setIncludesSubentities:NO]; //Omit subentities. Default is YES (i.e. include subentities)
NSError *err;
N...
Finding JavaScript memory leaks with Chrome
...napshot.
Repeat the same stuff.
Take another heap snapshot.
Filter objects allocated between Snapshots 1 and 2 in Snapshot 3's "Summary" view.
For your example, I have adapted the code to show this process (you can find it here) delaying the creation of the Backbone View until the click event of t...
How to handle Objective-C protocols that contain properties?
... char * argv[])
{
@autoreleasepool {
Person *duncan=[[Person alloc]initConforming];
duncan.firstname=@"Duncan";
duncan.lastname=@"Smith";
[Viewer printLargeDescription:duncan];
Serial *x890tyu=[[Serial alloc]initConforming];
x890tyu.amount=1564...
How to initialize a List to a given size (as opposed to capacity)?
...f string[10] as is (backing store of an lists is also an array) or it will allocate a new memory of its own and then copy the contents of string[10]? string[10] will get garbage collected automatically if L selects the later route.
– RBT
Mar 25 '17 at 4:30
...
Get the current user, within an ApiController action, without passing the userID as a parameter
...d() function always returns null. The user is auth'd, I'm passing a bearer token, and the ApiController has the [Authorize] header
– Joshua Ohana
Feb 22 '15 at 13:52
...
UIGestureRecognizer on UIImageView
...nEnabled = YES;
UIPinchGestureRecognizer *pgr = [[UIPinchGestureRecognizer alloc]
initWithTarget:self action:@selector(handlePinch:)];
pgr.delegate = self;
[imageView addGestureRecognizer:pgr];
[pgr release];
:
:
- (void)handlePinch:(UIPinchGestureRecognizer *)pinchGestureRecognizer
{
//handl...
How to expire session due to inactivity in Django?
...lf.request.session['access_key'] = access_key
self.request.session['access_token'] = access_token
self.request.session.set_expiry(set_age) #in seconds
And when using the access_key and token,
try:
key = self.request.session['access_key']
except KeyError:
age = self.request.session.get_ex...
Would it be beneficial to begin using instancetype instead of id?
...stancetype that, as far as I can see, replaces id as a return type in -alloc and init .
4 Answers
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Depend on a branch or tag using a git URL in a package.json?
...
If it helps anyone, I tried everything above (https w/token mode) - and still nothing was working. I got no errors, but nothing would be installed in node_modules or package_lock.json. If I changed the token or any letter in the repo name or user name, etc. - I'd get an error. S...