Recent questions tagged casting

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casting - C# : 'is' keyword and checking for Not

This is a silly question, but you can use this code to check if something is a particular type... if (child is ... .Children) { //...etc... See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - SQL Server 2008: Error converting data type nvarchar to float

Presently troubleshooting a problem where running this SQL query: UPDATE tblBenchmarkData SET OriginalValue = DataValue, ... suggestions? TIA. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - How can I cast an int to a bit in MySQL 5.1?

I am transitioning from SQL Server to MySQL 5.1 and seem to be tripped up trying to create a table using a select ... 0s and 1s) as a bit? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - Is it possible to cast in a MongoDB-Query?

When I have two MongoDB documents like this... db.test.insert( {"value" : "10123"} ); db.test.insert( ... quotes around "12" returns nothing. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - How does long to int cast work in Java?

This question is not about how a long should be correctly cast to an int, but rather what happens when we ... value being converted to an int? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - C++ auto vs auto&

if I have a function: Foo& Bar() { return /// do something to create a non-temp Foo here and return a ... trigger for compiling C code. ARGH.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - What happens when I assign long int to int in C?

In a recent homework assignment I've been told to use long variable to store a result, since it may be a big ... C when I don't use casting? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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548 views

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casting - Why do we have reinterpret_cast in C++ when two chained static_cast can do its job?

Say I want to cast A* to char* and vice-versa, we have two choices (I mean, many of us think we ... * to TYPE* : static_cast or reinterpret_cast See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - Differences in auto-unboxing between Java 6 vs Java 7

I have noted a difference in auto unboxing behavior between Java SE 6 and Java SE 7. I'm wondering why that ... runtime. Any reference on this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - How do I convert from int to Long in Java?

I keep finding both on here and Google people having troubles going from long to int and not the other way ... sequence number as a Long. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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631 views

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casting - Any difference between type assertions and the newer `as` operator in TypeScript?

Is there any difference between what the TypeScript spec calls a type assertion: var circle = <Circle> ... for compile-time casting? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - Converting double to integer in Java

In Java, I want to convert a double to an integer, I know if you do this: double x = 1.5; int y ... to truncate anything and will always work. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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715 views

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casting - Convert Float to Int in Swift

I want to convert a Float to an Int in Swift. Basic casting like this does not work because these types ... property convert from Float to Int? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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755 views

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casting - C++ class member function pointer to function pointer

I am using luabind as my lua to C++ wrapper. Luabind offers a method to use my own callback ... set_pcall_callback() function? Thank you! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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509 views

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casting - Int to Char in C#

What is the best way to convert an Int value to the corresponding Char in Utf16, given that the Int is in the range of valid values? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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414 views

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casting - What exactly is or was the purpose of C++ function-style casts?

I am talking about "type(value)"-style casts. The books I have read pass over them quickly, saying only that ... in the design of the language? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - What are the differences between asInstanceOf[T] and (o: T) in Scala?

I saw that there are two methods to cast an object in Scala: foo.asInstanceOf[Bar] (foo: Bar) When I tried, ... to use one over the other? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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