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m>Ca m>nnot use ref or out parameter in lambda expressions
Why m>ca m>n't you use a ref or out parameter in a lambda expression?
5 Answers
5
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How to create your own library for Android development to be used in every program you write?
...and have written, over the years, hundreds of classes and routines which I m>ca m>n use in every Delphi program I write.
5 Answe...
Difference between a Seq and a List in Sm>ca m>la
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In Java terms, Sm>ca m>la's Seq would be Java's List, and Sm>ca m>la's List would be Java's LinkedList.
Note that Seq is a trait, which is equivalent to Java's interface, but with the equivalent of up-and-coming defender methods. Sm>ca m>la's List is an a...
With bash, how m>ca m>n I pipe standard error into another process?
...so process substitution. Which makes a process substitute for a file.
You m>ca m>n send stderr to a file as follows:
process1 2> file
But you m>ca m>n substitute a process for the file as follows:
process1 2> >(process2)
Here is a concrete example that sends stderr to both the screen and appen...
Difference between dispatch_async and dispatch_sync on serial queue?
...");
it always print 1234
Note: For first code, it won't print 1324. Bem>ca m>use printf("3") is dispatched after printf("2") is executed. And a task m>ca m>n only be executed after it is dispatched.
The execution time of the tasks doesn't change anything. This code always print 12
dispatch_async(_ser...
What is a “context bound” in Sm>ca m>la?
One of the new features of Sm>ca m>la 2.8 are context bounds. What is a context bound and where is it useful?
4 Answers
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Rails respond_with: how does it work?
...re and there about how cool the respond_with method is in Rails 3. But I m>ca m>n't even find a reference to it in either the Rails APIs or by searching the source. m>Ca m>n anyone either explain to me how it works (what options you m>ca m>n use, etc) or point me to the place it's actually implemented so I m>ca m>n p...
What is the point of Lookup?
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@KyleBaran: Bem>ca m>use it would be pointless for genuine key/value pair collections, where there's only a single value per key.
– Jon Skeet
Mar 21 '13 at 6:41
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What are Transient and Volatile Modifiers?
Differences between std::make_unique and std::unique_ptr with new
...;U>(new U())); // unsafe*
The addition of make_unique finally means we m>ca m>n tell people to 'never' use new rather than the previous rule to "'never' use new except when you make a unique_ptr".
There's also a third reason:
make_unique does not require redundant type usage. unique_ptr<T>(...