I'm trying to understand why this code does not compile:I get a compiler error: "no type named type".
The error message:However, if I change the class A as follows:Then everything is ok.Why does C++'s variable template not behave as expected?
I am trying to use if constexpr in the following way:Example use case:But this fails to compileBut I found the error goes away once I add else:
I would like to create something similar to rust unsafe scope in C++. The idea is that I have some functions performing number of checks. For example:
Here is a minimal example: foo<incomplete_type> f; will cause error because it will do sizeof with type, even though incomplete_type is not a arithmetic type(iow, it will not go into sizeof branch logically). live demo
Here's what I want to do; posting the whole code because it's not too long and also to demonstrate the specific task I'm trying to solve. Basically, I need a way to iterate values from parameter pack by index (the index part is important, even though it's not required in...
I'm struggling with some template programming and I hope you can give me some help. I coded a C++11 interface that, given some structs like:
I'm trying to practice some template programming. Maybe there's a standard way to do this, and I would be thankful for such answers, but my main goal is to practice the template programming techniques, so I tried to implement it myself:
I have a variadic data structure, each "layer" containing one field.How can use all the fields stored in the structure as arguments to a function or a constructor?
I'm trying to implement a fast function dispatcher using compile time generated arrays to being able to use it at runtime in O(1).