Resharper is primarily concerned with helping you refactor code, and the var keyword generally makes refactoring easier. For example, if the return values of any of those functions ever change to a compatibile type, you don’t have to change any of this code. It’s therefore now a little easier to refactor your tabCaseNotes type, for … Read more
There are two distinct features here. First, request isn’t really an argument in a method invocation. It’s the argument of an anonymous function. The anonymous function itself is the argument of the method invocation. Second, declaring an implicit argument in an anonymous function have the convenience of saving you from “forcing” a val into a … Read more
There is a solution. Consider the following: public sealed class AccountStatus { public static readonly AccountStatus Open = new AccountStatus(1); public static readonly AccountStatus Closed = new AccountStatus(2); public static readonly SortedList<byte, AccountStatus> Values = new SortedList<byte, AccountStatus>(); private readonly byte Value; private AccountStatus(byte value) { this.Value = value; Values.Add(value, this); } public static implicit … Read more
It’s very common in C to write this void f(T* ptr) { if (ptr) { // ptr is not NULL } } You should make a const char* constructor.
I get asked questions like this all the time. Basically the question boils down to “when a fact about a declared member can be deduced by the compiler should the explicit declaration of that fact be (1) required, (2) optional, or (3) forbidden?” There’s no one easy answer. Each one has to be taken on … Read more
One use case, as requested… Imagine you have a list of things, could be integers, floating point numbers, matrices, strings, waveforms, etc. Given this list, you want to add the contents. One way to do this would be to have some Addable trait that must be inherited by every single type that can be added … Read more
I don’t believe there’s very good support for this, but you could try something like import matplotlib.pyplot from numpy import arange from numpy import meshgrid delta = 0.025 xrange = arange(-5.0, 20.0, delta) yrange = arange(-5.0, 20.0, delta) X, Y = meshgrid(xrange,yrange) # F is one side of the equation, G is the other F … Read more
You cannot concatenate a string with an int. You would need to convert your int to a string using the str function, or use formatting to format your output. Change: – print(“Ok. Your balance is now at ” + balanceAfterStrength + ” skill points.”) to: – print(“Ok. Your balance is now at {} skill points.”.format(balanceAfterStrength)) … Read more
In C++ operators (for POD types) always act on objects of the same type. Thus if they are not the same one will be promoted to match the other. The type of the result of the operation is the same as operands (after conversion). if: either is long double other is promoted > long double … Read more