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shared_ptr to an array : should it be used?
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With C++17, shared_ptr can be used to manage a dynamically allocated array. The shared_ptr template argument in this case must be T[N] or T[]. So you may write
shared_ptr<int[]> sp(new int[10]);
From n4659, [util.smartptr.shared.const]
template<class Y> explicit sh...
Replacing Spaces with Underscores
I have a PHP Script that users will enter a name like: Alex_Newton ,
12 Answers
12
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Why historically do people use 255 not 256 for database field magnitudes?
...nagement likes powers of 2. see: stackoverflow.com/questions/3190146/… Allocating char foo[257] will either fragment memory or take up 512 bytes.
– ebyrob
Jan 26 '17 at 17:11
4...
When does a process get SIGABRT (signal 6)?
...detect an internal error or some seriously broken constraint. For example malloc() will call abort() if its internal structures are damaged by a heap overflow.
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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...nt is closed.
32201
使用已经关联其他操作的Token发出请求。由于包装器的实现，不会发生此错误。
Token already in use.
32202
已发出发送消息的请求，但已达到最大队列中消息数量。
Too many publis...
How to change the blue highlight color of a UITableViewCell?
...t will present as the selected background view.
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
UIView *selectionColor = [[UIView alloc] init];
selectionColor.backgroundColor = [UIColor colorWithRed:(245/255.0) green:(245/255.0) blue:...
How to empty a list in C#?
...end up using = new LisT<T>(); due to the fact that it clears all old allocations instantly. For most people though, .Clear(); will suffice, but if you find a list acting strangely - try using = new List<T>();.
– Charles
Jul 3 '14 at 3:28
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Initial size for the ArrayList
...pacity is how many elements the list can potentially accommodate without reallocating its internal structures.
When you call new ArrayList<Integer>(10), you are setting the list's initial capacity, not its size. In other words, when constructed in this manner, the array list starts its life ...
Avoid dropdown menu close on click inside
... edited Feb 9 '15 at 0:12
php-dev
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answered Aug 8 '14 at 4:32
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What are the best practices for catching and re-throwing exceptions?
...t to decide how the failure should be handled at the top level. In earlier PHP versions this would be implemented as
$connect = new CONNECT($db, $user, $password, $driver, $host);
try {
$connect->insertSomeRecord();
}
catch (Exception $e) {
$connect->disconnect(); // we don't want to ...