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3 votes
2 answers
199 views

I've a C++ concept where I need to check that the class has a particular public attribute. My problem is that the concept works if I use it directly, but fails if I use it in std::visit. This is the ...
0 votes
1 answer
73 views

I've written the next piece of code in order to declare a vector of lexical elements: type Lexical_Element_Kind is ( Delimiter, -- & ' ( ) * + , - . / : ; < = > | -- => .. ...
tymurmchyk's user avatar
0 votes
0 answers
49 views

I use Spark 4.0 and have the following code from pyspark.sql import SparkSession from pyspark.sql import functions as F from pyspark.sql.types import StringType json_data = [ ('{"auswahl&...
1 vote
0 answers
145 views

When I try to convert a pyspark DataFrame with a VariantType column to a pandas DataFrame, the conversion fails with an error 'NoneType' object is not iterable. Am I doing it incorrectly? Sample code: ...
2 votes
3 answers
179 views

I want to store objects of different types in a std::set and rely on std::set's sorting to later access them by some key variable which is present in every type. To store different types I am using ...
phinz's user avatar
  • 1,729
0 votes
2 answers
96 views

I'm implementing polymorphism on GPU with std::cuda::variant, so far it's working with Circle, Square, Shape: struct Circle; struct Square; using Shape = cuda::std::variant<Circle, Square>; ...
Rahn's user avatar
  • 5,575
0 votes
0 answers
91 views

I'm trying to set up WSL as a toolchain in CLion. In Settings > Build, Execution, Deployment > Toolchains when I select WSL, the "Toolset" dropdown shows "No variants found", ...
0 votes
3 answers
132 views

I have a lot of polymorphic classes. Each of them has a nested class named Configuration containing all the hyperparameters required by the class. For each class tree, I create a variant of the ...
1 vote
0 answers
27 views

I’m working with the BigCommerce API and need to achieve the following: Create Discount Code for a Variant: Is it possible to create a discount code specifically for a variant (not the whole product), ...
0 votes
0 answers
101 views

I have a macro that I use for doing interstore transfers between stores and calculates stock transfers based on certain criteria. It loops through a list of sending stores and evaluates potential ...
0 votes
2 answers
68 views

I have a workbook with lots of code in it that I have been using for many years. One of the worksheets has code that is supposed to create and populate a validation list with the names of folder names ...
1 vote
2 answers
145 views

I'm struggling with an odd behavior of the below code. The problem is that output of this snippet is "double". But we have an int in lhs. I dug for a while and figured out the compiler put a ...
0 votes
0 answers
107 views

I am using a C++ std::variant with around 100 structs as possible choices. This type is used throughout my application and compile times tend to point to the instantiation and generation of various ...
yano's user avatar
  • 4,523
2 votes
2 answers
297 views

I have a std::variant of possibly repeated types, and I would like to increment the active index of the variant. Here is an example demonstrating what I would like to do: template <typename... Ts&...
1 vote
1 answer
123 views

I am trying to migrate a Delphi 6 application with TdxDBGrid to Delphi 2009, and for the time being I would like to keep TdxDBGrid, because it has features that TcxGrid does not (we're moving to ...

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