while experimenting with the answer from This post, ended up with the following piece of code: which yields: Here, d comes from the comma operat ...
while experimenting with the answer from This post, ended up with the following piece of code: which yields: Here, d comes from the comma operat ...
I'm trying to understand the difference in the following two cases. In both, I introduce a comparator as a lambda function: auto comp = [](int x, int ...
I have a Class called SceneManager with a method update that when the exit flag is true it switches the current scene to the using next = nextScene, b ...
In this code, is a + b executed once or twice? What would be a good method to verify that? ...
I want to determine the type of this variable inside a class method. For example, take the following example - In the above code, I want to decide ...
I'm trying to use decltype, but I got the same error every time when I was trying compile. I got a error: " " What's wrong? ...
A minimized example of my code showing the problem: Godbolt It gives the output: Why is it that I can't access the variable template using decl ...
Which is better: If these are just two ways of saying the same thing, why are the parentheses even part of the language? ...
Usually decltype perseveres the ref qualifiers But apparently not when it's argument is obtained from structured binding auto p = std::pair{1, 2.f ...
I'm new at programming and can someone explain to me how this code work? I'm quite confused how this code run as they give me a result of 4 4, shou ...
I tried to use custom comparator in a std::set. When I insert cuisine "japaneses" in a variable bucketCuisines, I get error DEADLYSIGNAL. But, If i e ...
In https://github.com/stlab/libraries/blob/main/stlab/concurrency/main_executor.hpp, I read What is the point of the decltype(f), why no simply use ...
So the following code works great: but the following code doesn't compile: Why? The member function has a type, just as the normal function has ...
I'm trying to get the return type of a function template. One solution I saw uses result_of_t: However, it gives me an error: /usr/include/c++/10/ ...
I'm trying to make a generic get_or_default() function that can be used with all types of map. There are 4 conditions that a class must meet to be c ...
I am a beginner user who uses stack overflow for the first time. An error occurs when using the type in the following code, and I want to know why. ...
In my work's codebase, I see the following Why can't we simply just do What is the point of using auto in this case when you already know the re ...
STL set can have customized comparator. It can be implemented in several ways, such as define an operator(), use decltype on lambda, etc. I was trying ...
I initially had a working code. Within this class I had code something like this: Now, to avoid a lot of duplicate code, I extended the class with ...
I have been trying to understand the implementation of std::reference_wrapper, from here, which is as follows: Although the implementation of std:: ...