Recent questions tagged casting

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casting - Typecasting int to char in printf() in C

int *int_pointer = malloc(10); *int_pointer = 53200; printf("The integer at byte #0 is set to: %d ", ( ... How did it even turn into negative? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - How do you convert Vec<&mut T> to Vec<&T>?

I've got a vector of mutable references: struct T; let mut mut_vec: Vec<&mut T> = vec![]; How can I ... cool_func(mut immut_vec: Vec<&T>) {} See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - Will the c# compiler perform multiple implicit conversions to get from one type to another?

Let's say you have yourself a class like the following: public sealed class StringToInt { private string _myString; ... the gurus have to say] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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872 views

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casting - java: convert binary string to int

I'm trying to convert a couple of binary strings back to int. However it doesn't convert all my binary strings, ... to me why this is ? Cheers See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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690 views

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casting - Tuple "upcasting" in Swift

If I have a tuple with signature (String, Bool) I cannot cast it to (String, Any). The compiler says ... you could cast the elements separately. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - Convert OleVariant to Object in Delphi

I'm working on this project where we don't have the source code for large chunks of the project, ... interface which inherits from IDispatch. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - How do I clone a Rc trait object and cast it to another trait object?

This is a follow up question from Rust dynamic cast trait object between different taits. The solution provided ... a cloned shared pointer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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738 views

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casting - I don't know how to cast to float in Java

I'm porting some code over from Processing to Java, and one issue I've come across is that processing's ... wrong? float theta = .01f; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - Can static_cast throw an exception in C++?

Is it safe to assume that static_cast will never throw an exception? For an int to Enum cast, an exception is ... x = static_cast<animal>(y); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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casting - java: boolean instanceOf Boolean?

I'm a bit confused: I have a function, that takes an Object as argument. But the compiler does not complain if I ... ); // will result in "yes" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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604 views

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casting - Java Convert 4 bytes to int

i was wondering if the solution for this documented here is still the solution or is there any other way ... in my opinion best practice. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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511 views

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casting - Steps to programmatically cast from android to miracast receiver

I'm trying to write an app that will start casting the screen from an Android phone to a TV via miracast. ... see my answer below for details. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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647 views

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casting - How can I call explicitly implemented interface method from PowerShell?

Code: add-type @" public interface IFoo { void Foo(); } public class Bar : IFoo { void IFoo.Foo() { } ... doesn't contain a method named 'Foo'. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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537 views

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casting - F# and interface covariance: what to do? (specifically seq<> aka IEnumerable<>)

I'm trying to call a .NET method accepting a generic IEnumerable<T> from F# using a seq<U> such that ... interfaces such as IEnumerable in F#? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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570 views

1 answer

casting - Can .NET convert "Yes" & "No" to boolean without If?

You would think there would be a way using DirectCast, TryCast, CType etc but all of them seem to choke on it ... type 'Boolean' is not valid. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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764 views

1 answer

casting - F# and interface covariance: what to do? (specifically seq<> aka IEnumerable<>)

I'm trying to call a .NET method accepting a generic IEnumerable<T> from F# using a seq<U> such that ... interfaces such as IEnumerable in F#? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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617 views

1 answer

casting - Can .NET convert "Yes" & "No" to boolean without If?

You would think there would be a way using DirectCast, TryCast, CType etc but all of them seem to choke on it ... type 'Boolean' is not valid. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

1 answer

casting - C++: can't static_cast from double* to int*

When I try to use a static_cast to cast a double* to an int*, I get the following error: invalid static_cast from ... a double* and an int*? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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439 views

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casting - Java: Unable to use EnumSet within an Enumeration : Initialization error : Tech Research Talent Tree example

Error: ... Caused by: java.lang.ExceptionInInitializerError ... Caused by: java.lang.ClassCastException: class com. ... } return false; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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601 views

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casting - How to cast or convert an unsigned int to int in C?

My apologies if the question seems weird. I'm debugging my code and this seems to be the problem, but I'm not sure. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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494 views

1 answer

casting - How does implicit conversion work in Java?

I know that in Java Integer literals are int by default,so if I write something like this byte byteValue = 2 ... only if there are literals? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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597 views

1 answer

casting - Using settype in PHP instead of typecasting using brackets, What is the difference?

In PHP you can typecast something as an object like this; (object) or you can use settype($var, "object") - ... is a settype function as well. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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851 views

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casting - Cast a Swift struct to UnsafeMutablePointer<Void>

Is there a way to cast a Swift struct's address to a void UnsafeMutablePointer? I tried this without success: ... read the comments for details) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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833 views

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casting - RTTI Overhead in C++

What are the memory/performance overheads of enabling RTTI in a C++ program? Can anyone please throw some light ... how it is an overhead? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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646 views

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casting - C++ - downcasting a diamond shape inherited object without RTTI/dynamic_cast

I'm currently working on integrating a third-party package that uses lots of RTTI stuff on a non-RTTI ... dynamic_cast or static_cast Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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449 views

1 answer

casting - Passing a class ("Country.class") as an argument in Java

I'm trying to make a method that takes an argument of Country.class, User.class etc, and returns argument.count(). ... How do I do this, please? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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584 views

1 answer

casting - How do I convert Int/Decimal to float in C#?

How does one convert from an int or a decimal to a float in C#? I need to use a float for a third-party ... sure how to end up with a float. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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943 views

1 answer

casting - How to cast int to enum in C++?

How do I cast an int to an enum in C++? For example: enum Test { A, B }; int a = 1; How do I convert a to type Test::A? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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