traits | Collection of cryptography-related traits | Cryptography library

Some Background (feel free to skip):

I'm very new to Rust, I come from a Haskell background (just in case that gives you an idea of any misconceptions I might have).

I am trying to write a program which, given a bunch of inputs from a database, can create customisable reports. To do this I wanted to create a Field datatype which is composable in a sort of DSL style. In Haskell my intuition would be to make Field an instance of Functor and Applicative so that writing things like this would be possible:

I'm trying to store data into a database and I encountered a situation where I don't know is it feasible or not to do that.

so I have two following tables in the database

In Rust, I want to use a phantom type to properly type a simple id:

So say I'm writing a wrapper type for the array.

Why introduction text was overlaid by the profile image when the browser was scaled down to 650px? They suppose to show in 100% width at 650px screen. I did adjust the position of .speakers-info from absolute to relative, it seems solved the overlay problem but then all position setting got messed. Please see the code as below and advise how to solve it, thank you!

Screenshot: the introduction text was overlaid by the image

I am creating my first django project and after having created a model A I realize that I want to create other models B, C ... that have certain traits in common with A but which needs to be separat models. Thus I created an abstract class 'InteractableItem' with these traits. I want users to be able to like interactable items, however I also want to constrain the instantiation of a 'Like' model such that each user only can like a given interactable item once. To solve this I tried creating a models.UniqueConstraint in the like model between the fields 'user' and 'interactableitem'. This gave me the following error

I'm new to Jenkins and I'm trying to figure something out.

Is there a way to add Branch Sources behavior via Groovy. This is to analyse GitHub projects in SonarQube using Jenkins.

I'm creating a multi-branch pipeline but can't seem to figure out how to add the following behaviours.

These behaviours come by default when the job is created in the UI, but don't appear when the job is created via Groovy.

I've defined this as my pipeline. Any idea how these other parameters can be added in?

So I'm doing a rpg trait randomizer, where I have the traits in a array, and I can choose to random or add based on a select, but , whenever I click any of those buttons, the state on the select that should show the array, doesn't get update, only if I open the add trait select.

In short, the problem is the array after a add is not showed in the display.

I'm working on a library that uses a pretty old C++ expression template (ET) engine named PETE. (I tried finding a link to its source code so I could cite it but I only found articles about it.)

Quick overview: With ET the C++ compiler builds from an expression using the operator infix-form (+,-,*,/) a C++ type which represents the expression and its operations. Central to PETE's approach is the ForEach class template that is used to later parse and evaluate the expression.

What I'm trying to do is to provide a specialized ForEach that gets used when its argument meet a specific condition. I'm trying this with partial specialisation and the use of enable_if but the compiler complains about 'ambiguous partial specialization'.

I'm happy to post other parts of the code if needed, but I'll stick to the direct class template in question (NB: I added the Enable parameter in order to make the later specializations selectable with enable_if. NB2: For the sake of a shorter post I don't include the implementation of the method):