type-inference

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When does Scala need parameter types for anonymous and expanded functions?

When does the Scala compiler really need the type information of parameters of anonymous functions? For instance, given this function:[详细]

2023-02-08 19:26 分类：问答
C++0x type inference messes with boost::enable_if

I\'m trying to write a generic filtering function that performs linear interpolation at a given sampling coordinate in an 开发者_如何学运维multi-dimensional array (arbitrary rank). For this, I need a[详细]

2023-02-06 09:27 分类：问答
How to write a function for generic numbers?

I\'m quite new to F# and find type inference really is a cool thing. But currently it seems that it also may lead to code duplication, which is not a cool thing. I want to sum the digits of a number l[详细]

2023-02-05 05:09 分类：问答
Argument type deduction, references and rvalues

Consider the situation where a function template needs to forward an argument while keeping it\'s lvalue-ness in case it\'s a non-const lvalue, but is itself agnostic to what the argument actually is,[详细]

2023-02-02 16:47 分类：问答
Type inference in Java (à la C#) [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely solicit debate, a[详细]

2023-02-02 04:18 分类：问答
How can I implement NotOfType<T> in LINQ that has a nice calling syntax?

I\'m trying to come up with an implementation for NotOfType, which has a readable call syntax. NotOfType should be the complement to OfType<T> and would consequently yield all elements that are[详细]

2023-02-01 22:34 分类：问答
Type inference for a scala combinator calculus data model

I\'m trying out a very light-weight encoding of combinator calculus in scala. Initially, I\'m simply implementing the S and K combinators, application and constant values. Later I hope to lift scala f[详细]

2023-02-01 17:33 分类：问答
Scala partially applied type constructor inference

I\'m using scala-2.8.1 and scalaz-5.0. Can anyone explain exactly why a PartialApply1Of2 can be inferrred in the one case but not in the other?[详细]

2023-02-01 06:14 分类：问答
Why must I provide explicitly generic parameter types While the compiler should infer the type?

Why must I provide explicitly generic parameter types While the compiler should infer the type? public static T2 Cast<T1,T2>(this 开发者_如何学GoT1 arg) where T2 : class where T1 : class[详细]

2023-01-31 01:01 分类：问答
Is it possible to do the following with auto in C++0x?

Eric Lippert has written an article about Why no var o开发者_Go百科n fields? in C#. I was curious, will we be able to do that in C++0x? ex.[详细]

2023-01-30 19:41 分类：问答