I’m currently facing an issue while trying to convert a variable from type double to int in C++. When using the static_cast or int() operator for the conversion, the result doesn’t seem to be correct. Can someone guide me on how to properly perform this conversion? #include <iostream> int main() { double myDouble = 3.14;… Read More Issue with Type Casting in C++

I’ve tried all the ways I can think of to convert type *int32 to type *int64 in Go, but no avail https://go.dev/play/p/W2X0HEnn79q Somebody help please. >Solution : You cannot convert an *int32 to *int64. One is a pointer pointing to a 4-byte location, the other is a pointer pointing to an 8-byte location. You can… Read More Go, cannot convert type *int32 to type *int64

I’m learning how to build a compiler through a YouTube video, and there’s a part where there’s a type conversion error, in the locals.Add(parameter, value); section there’s this error from Visual Studio for Mac, saying that the variable parameter with the type ParameterSymbol can’t be converted to VariableSymbol. Argument 1: cannot convert from ‘Compiler.SupportedExpressions.Symbols.ParameterSymbol’ to… Read More Is type conversion having a covariance error?

I need to convert this type of nvarchar field to a date. The data in the field called F2 looks like this. 09222018. i want to convert to a date and have it look like 09/22/2018. I’ve tried this, and get incorrect syntax. select f2, cast(f2,as datetime) FROM Testbk tried this select f2, convert(nvarchar,f2,101) FROM… Read More Convert a simple text field date to a date in sql

I have a function that takes in a dynamic type object. The function does work to parse that object then returns back some information about what it parsed. For some weird reason when I take the returned object and store it into another variable, that new variable doesn’t check to see that the object type… Read More C# type casting isn't checked when a function takes a dynamic object as input parameter

I have a query that grabs a yyyy-MM-dd format from a large storage field by substringing, so the value is automatically a varchar. An example of the entire record’s contents is below: EmployeeName$Test User Email$test@test.com ADUsername$tuser TermDate$2023-07-13 EmployeeNumber$12345 Department$Tech The following SQL query works and returns all data correctly, where TermDateString is never null and… Read More SQL Convert Varchar to Date

Take a look at this MVCE: abstract class Bar class BarHolder(val barFunctor : Bar.()-> Unit) fun <T : Bar>foo(bar: T.() -> Unit) { val activeRequest = BarHolder(bar as (Bar.() -> Unit)) } The cast bar as (Bar.() -> Unit) is marked as unchecked. But I can’t think of a scenario where the cast fails at… Read More Why is this cast in my generic Kotlin function unchecked?

Problem: when write type cast operator for object, i want to change state of object’s field, who calls cast-operation. Question: how can i change state of field in object, which one call cast operator? Example below: #include <iostream> class myClass { public: int field; int res; myClass() { field = 0; res = -1; }… Read More Change object's field in type cast C++

I have a vector<int> and functions that only accepts a vector<unsigned int> references.I know that I could change/template the functions(and this is likely the best thing to do), but ideally I would have a way to cast/convert the vector<unsigned int> reference to a vector<int> reference. I know that all values in the vector are positive,… Read More Cast vector<int> to vector<unsigned int>

Let A be a superclass of AB and AC. Given a method: public void handleStuff(A someObject) { if(someObject instanceof AB){ ((AB)someObject).someABFunction(); } else if(someObject instanceof AC) { ((AC)someObject).someACFunction(); } } I don’t like the double checking/casting operation here; is there any other way to code this without first checking for a type and then casting?… Read More elegant Java class downcast