return-value

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Combine output of SQL stored proc to single row if multiple rows have been returns using comma delimiter

I am trying to write a stored Procedure which returns values in such a way that if couple of rows have all same values except few columns then the SP should return a single row with columns having dis[详细]

2023-03-18 01:52 分类：问答
how to return multiple values from a method

I have -(CLLocationCoordinate2D) method, I want to ret开发者_如何转开发urn multiple locations from that method (those locations are using in another method)[详细]

2023-03-16 18:34 分类：问答
How the compiler interprets preincrement/decrement and postincrement/decrement

When someone asks about the difference between post-increment/decrement and pre-increment/decrement, the response is usually that the prefix versions add one to the variable and return the new value o[详细]

2023-03-16 13:39 分类：问答
C++ return type when I don't know if it's temporary

Suppose that Foo is a rather large data structure. How should I write a const virtual function that returns an instance of Foo, if I don\'t know whether the inherited classes will store the instance o[详细]

2023-03-16 02:13 分类：问答
Java generics - overriding an abstract method and having return type of the subclass

I am trying to create a set up where a set of subclasses override a superclass. This superclass contains an abstract method - the return type of which would ideally be that of the object from which th[详细]

2023-03-15 07:25 分类：问答
How to get a list (or subset) from an OpenCL Kernel?

I have a large array with 2^20 ulongs on it.This little OpenCL kernel flows through it like a charm. Yet, I have absolutely no idea (and google hasn\'t helped here) how to return a small number of ite[详细]

2023-03-14 16:03 分类：问答
How can one determine the return type of a function at template instantiation time?

Is there a way to find out what the return type of a function (or even better of a function pointer) is ?[详细]

2023-03-14 10:31 分类：问答
Do objects receive and return values?

My book has asked the question: \"What is the difference between objects and functions?\" The answer key says that functions are sets of statements referenced by name that receive and return values.[详细]

2023-03-14 08:37 分类：问答
OCaml return values

In the book \'Developing Applications with OCaml\', there is the following explanation regarding return values:[详细]

2023-03-12 21:11 分类：问答
Why does operator ++ return a non-const value?

I have read Effective C++ 3rd Edition written by Scott Meyers. Item 3 of the book, \"Use const whenever possible\", says if we want to prevent rvalues from being assigned to function\'s return value[详细]

2023-03-12 13:04 分类：问答