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What really is a deque in STL?
...ure used), and the deque stopped me: I thought at first that it was a double linked list, which would allow insertion and deletion from both ends in constant time, but I am troubled by the promise made by the operator [] to be done in constant time. In a linked list, arbitrary access should be O...
Why would a static nested interface be used in Java?
I have just found a static nested interface in our code-base.
11 Answers
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What is the purpose of “return await” in C#?
... sneaky case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task<SomeResult> DoSomethingAsync()
{
using (var foo = new Foo())
{
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Is there YAML syntax for sharing part of a list or map?
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The merge key type is probably what you want. It uses a special << mapping key to indicate merges, allowing an alias to a mapping (or a sequence of such aliases) to be used as an initializer to merge into a single mapping. Additionally, you can...
Join/Where with LINQ and Lambda
I'm having trouble with a query written in LINQ and Lambda. So far, I'm getting a lot of errors here's my code:
9 Answers
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Why are primes important in cryptography?
... strikes me as a non-cryptographer: Why is it so important to use Prime numbers? What makes them so special in cryptography?
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Use of class definitions inside a method in Java
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This is called a local class.
2 is the easy one: yes, a class file will be generated.
1 and 3 are kind of the same question. You would use a local class where you never need to instantiate one or know about implementation details anywhere but in one method.
A typical use would be to create a t...
How to close Android application?
I want to close my application, so that it no longer runs in the background.
22 Answers
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Why does the JavaScript need to start with “;”?
I have recently noticed that a lot of JavaScript files on the Web start with a ; immediately following the comment section.
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SQL NVARCHAR and VARCHAR Limits
All, I have a large (unavoidable) dynamic SQL query. Due to the number of fields in the selection criteria the string containing the dynamic SQL is growing over 4000 chars. Now, I understand that there is a 4000 max set for NVARCHAR(MAX) , but looking at the executed SQL in Server Profiler for the ...