How can I set the base path in ConfigurationBuilder in Core 2.0. I have googled and found this question, this from Microsoft docs, and the 2.0 docs online but they seem to be using a version of Microsoft.Extension.Configuration from 1.0.0-beta8. I want to read appsettings.json. Is there a new way of doing this in Core … Read more
It seems like this setting should be stored in the solution file so it’s shared across all users and part of source code control. Since we don’t check in the suo file, each user has to set this separately which seems strange. 5 Answers 5
I know the title sounds familiar as there are many similar questions, but I’m asking for a different aspect of the problem (I know the difference between having things on the stack and putting them on the heap). In Java I can always return references to “local” objects public Thing calculateThing() { Thing thing = … Read more
Something I have found myself doing often lately is declaring typedefs relevant to a particular class inside that class, i.e. class Lorem { typedef boost::shared_ptr<Lorem> ptr; typedef std::vector<Lorem::ptr> vector; // // … // }; These types are then used elsewhere in the code: Lorem::vector lorems; Lorem::ptr lorem( new Lorem() ); lorems.push_back( lorem ); Reasons I … Read more
This question already has answers here: What is the difference between String and string in C#? (65 answers) Closed 8 years ago. I noticed that in C# there are both a byte and Byte data type. They both say they are of type struct System.Byte and represent an 8-digit unsigned integer. So I am curious … Read more
In his book The C++ Standard Library (Second Edition) Nicolai Josuttis states that lambdas can be better optimized by the compiler than plain functions. In addition, C++ compilers optimize lambdas better than they do ordinary functions. (Page 213) Why is that? I thought when it comes to inlining there shouldn’t be any difference any more. … Read more
In c++14 the decltype(auto) idiom is introduced. Typically its use is to allow auto declarations to use the decltype rules on the given expression. Searching for examples of “good” usage of the idiom I can only think of things like the following (by Scott Meyers), namely for a function’s return type deduction: template<typename ContainerType, typename … Read more
My friend said that there are differences between “mod” and “remainder”. If so, what are those differences in C and C++? Does ‘%’ mean either “mod” or “rem” in C? 7 Answers 7
Once it is compiled, is there a difference between: delegate { x = 0; } and () => { x = 0 } ? 6 Answers 6
Why is it that scanf() needs the l in “%lf” when reading a double, when printf() can use “%f” regardless of whether its argument is a double or a float? Example code: double d; scanf(“%lf”, &d); printf(“%f”, d); 5 Answers 5
