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Is the “struct hack” technically undefined behavior?
...nt to an object which can legally be interpreted as char [100]; inside the allocated object.
– R.. GitHub STOP HELPING ICE
Sep 14 '10 at 23:34
3
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Add single element to array in numpy
...your array should be fine. The drawback of this approach is that memory is allocated for a completely new array every time it is called. When growing an array for a significant amount of samples it would be better to either pre-allocate the array (if the total size is known) or to append to a list a...
Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
...ce, which is an object's reference to itself (i.e. reference to the actual allocated memory for storing the object's data). It happens to any allocated memory for which the Garbage Collector (GC) is unable to free up after the allocated memory has outlived its useful lifespan.
Most of the time, whe...
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...UnitHour | NSCalendarUnitMinute | NSCalendarUnitSecond ) fromDate:[[NSDate alloc] init]];
[components setHour:-[components hour]];
[components setMinute:-[components minute]];
[components setSecond:-[components second]];
NSDate *today = [cal dateByAddingComponents:components toDate:[[NSDate alloc] ...
C++ performance vs. Java/C#
... lot of optimizations that just aren't safe.
Also Java and C# can do heap allocations more efficiently than C++ because the layer of abstraction between the garbage collector and your code allows it to do all of its heap compression at once (a fairly expensive operation).
Now I can't speak for Jav...
ArrayBuffer to base64 encoded string
...p(b => String.fromCharCode(b)).join('')).
– e741af0d41bc74bf854041f1fbdbf
Sep 19 at 7:00
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Can we open pdf file using UIWebView on iOS?
... in your web view directly:
Objective-C
UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(10, 10, 200, 200)];
NSURL *targetURL = [NSURL URLWithString:@"https://www.example.com/document.pdf"];
NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
[webView loadRequest:requ...
Clear a terminal screen for real
...nswered Jan 29 '14 at 17:55
N1mr0dN1mr0d
38344 silver badges1010 bronze badges
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Does the default constructor initialize built-in types?
...tually a source for really strange errors as modern OSs tend to fill newly allocated memory regions with zeroes. If you expect that, it might work the first time. However, as your application keeps running, delete-ing and new-ing objects, you will sooner or later end up in a situation where you expe...
Hex transparency in colors [duplicate]
...6
35% — 59
30% — 4D
25% — 40
20% — 33
15% — 26
10% — 1A
5% — 0D
0% — 00
(source)
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