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Proper way to exit iPhone application?
... it to exit due to certain user actions. After cleaning up memory the app allocated, what's the appropriate method to call to terminate the application?
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How to delete all records from table in sqlite with Android?
...se Vacuum after delete command.. db.execSQL("vacuum"); this will clear all allocated spaces..
– Ramesh_D
May 29 '14 at 9:43
6
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Reason to Pass a Pointer by Reference in C++?
...reference. For instance, if you have a class holding data in a dynamically allocated array, but you want to provide (nonconstant) access to this data to the client. At the same time, you do not want the client to be able to manipulate the memory through the pointer.
– user23218...
Is it better practice to use String.format over string Concatenation in Java?
...er than doing just one instantiation most likely due to the overhead of re-allocating space for the looping append at the end of one builder).
String formatString = "Hi %s; Hi to you %s";
long start = System.currentTimeMillis();
for (int i = 0; i < 1000000; i++) {
String s =...
How to “return an object” in C++?
...hat, you'd probably want to do the out parameter. It avoids dynamic memory allocation, which is safer and generally faster. It does require you have some way to construct the object prior to calling the function, which doesn't always make sense for all objects.
If you want to use dynamic allocation...
Is it possible to use AutoLayout with UITableView's tableHeaderView?
...viewDidLoad
{
[super viewDidLoad];
self.header = [[SCAMessageView alloc] init];
self.header.titleLabel.text = @"Warning";
self.header.subtitleLabel.text = @"This is a message with enough text to span multiple lines. This text is set at runtime and might be short or long.";
//se...
Fastest way to reset every value of std::vector to 0
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does assigning it to a new vector do heap allocation ? and then discard the allocation of the existing vector ? I could see that being slower than memset et al
– Conrad Jones
Jan 12 '18 at 19:40
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Create batches in linq
...are simpler solutions that do not accumulate at all. Furthermore this will allocate space even for non-existent elements: Batch(new int[] { 1, 2 }, 1000000)
– Nick Whaley
Jul 12 '13 at 18:56
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]
...en you do String s = new String("string constant"); you force a copy to be allocated.
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When should I use a List vs a LinkedList
...is is .net specific): since the List is backed by an internal array, it is allocated in one contiguous block. If that allocated block exceeds 85000 bytes in size, it will be allocated on the Large Object Heap, a non-compactable generation. Depending on the size, this can lead to heap fragmentation, ...