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PyPy — How can it possibly beat CPython?
...zed to literally only be able to emit an integer, and eliminates repeated malloc (memory allocation overhead).
– amcgregor
May 29 '19 at 13:58
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std::string length() and size() member functions
...having,
size==size of those bits,
In strings both are same if the editor allocates size of character is 1 byte
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Determine device (iPhone, iPod Touch) with iOS
...imply replace - (NSString *) by + (NSString *) and you'll save yourself an alloc / release when using it.
– Ben G
Mar 2 '11 at 22:48
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Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
... image tag is a good practice..this way when the page loads there is space allocated for the image and the layout does not suffer any jerks even if the image takes a long time to load.
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Is it better to reuse a StringBuilder in a loop?
...sertion pointer back to zero (via .setLength(0)). Those answers suggesting allocating a brand new StringBuilder per loop do not seem to realise that .toString creates yet another copy, so each iteration requires two buffers as opposed to the .setLength(0) method which only requires one new buffer p...
The remote end hung up unexpectedly while git cloning
...t can increase memory consumption significantly since the entire buffer is allocated even for small pushes.
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Python hashable dicts
...using itervalues will access the values directly and avoid the many memory allocator calls using by items to form new many key/value tuples in memory every time you do a lookup.
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How to create custom easing function with Core Animation?
...s with a nice sample code.
- (void)viewDidLoad {
UIView *v = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 50.0, 50.0)];
v.backgroundColor = [UIColor redColor];
CGFloat y = self.view.bounds.size.height;
v.center = CGPointMake(self.view.bounds.size.width/2.0, 50.0/2.0);
[se...
What is the best way to concatenate two vectors?
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AB.reserve( A.size() + B.size() ); // preallocate memory
AB.insert( AB.end(), A.begin(), A.end() );
AB.insert( AB.end(), B.begin(), B.end() );
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Check if my app has a new version on AppStore
...bundleId=XXXXXXXXX";
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:appInfoUrl]];
[request setHTTPMethod:@"GET"];
NSURLResponse *response;
NSError *error;
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse: &am...