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Checking that a List is not empty in Hamcrest
...(empty())));
empty() is a static in the Matchers class. Note the need to cast the list to Collection, thanks to Hamcrest 1.2's wonky generics.
The following imports can be used with hamcrest 1.3
import static org.hamcrest.Matchers.empty;
import static org.hamcrest.core.Is.is;
import static org.h...
C# short/long/int literal format?
...
Does this mean you have to cast everywhere you use short/ushort/byte/sbyte? Eg.: somebyte = somebool ? (byte) 1 : (byte) 0;
– mola
Feb 7 '13 at 13:19
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What are major differences between C# and Java?
...es over Java, many of which, such as operator overloading and user-defined casts, are already familiar to the large community of C++ programmers.
• Event handling is a "first class citizen"—it is part of the language itself.
• Allows the definition of "structs", which are similar to clas...
c++11右值引用、std::move移动语义、std::forward完美转发的一些总结 - C/C...
...语义。从实现上讲，它基本等同于一个类型转换：static_cast<T&&>(lvalue);特别
std::move 实际上并不能移动任何东西，它唯一的功能是将一个左值强制转换为右值引用，继而用于移动语义。从实现上讲，它基本等同于一个类型转换...
How to change the type of a field?
...uble) to 2 (string).
So simply load the document from the DB, perform the cast (new String(x)) and then save the document again.
If you need to do this programmatically and entirely from the shell, you can use the find(...).forEach(function(x) {}) syntax.
In response to the second comment below...
Why are const parameters not allowed in C#?
...hors assume is invariant about the object?
Nothing. The callee is free to cast away the const and mutate the object, so the caller has no guarantee that calling a method that takes a const actually will not mutate it. Similarly, the callee cannot assume that the contents of the object will not chan...
NULL vs nullptr (Why was it replaced?) [duplicate]
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but we can always specify the type using typecast operator like f( (int) NULL ) or f((foo*) NULL ) as an alternative to resolve ambiguity... correct ?
– Arjun
Jun 16 '18 at 17:18
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Should you declare methods using overloads or optional parameters in C# 4.0?
...call site. By contrast, overloads provide a means by which a compiler can select one of a number of methods, some of which might supply default values themselves. Note that if one tries to call a method that specifies optional parameters from code written in a language which doesn't support them, ...
Most used parts of Boost [closed]
When I discovered boost::lexical_cast I thought to myself "why didn't I know about this sooner!" - I hated having to write code like
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How do arrays in C# partially implement IList?
...() call fails for a concrete array type with "Interface not found". Yet a cast to IEnumerable<> works without a problem.
This is quacks-like-a-duck typing. It is the same kind of typing that creates the illusion that every value type derives from ValueType which derives from Object. Both t...