functor

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Is there a more or less agreed-upon convention as to how one should call member functions which return the _support_ of a functor?

In a function object representing a compactly-supported function f mapping the real numbers to the real numbers, how should I call a member function which returns an interval outside of which the valu[详细]

2023-03-07 12:05 分类：问答
C++ functor templates

Given the following class, which simply maps an internal functor f to a function to be run later: class A {[详细]

2023-03-07 06:35 分类：问答
Is it possible to create function-local closures pre-C++11?

With C++11, we get lambdas, and the possibility to create functions/functors/closures on-the-fly where we actually need them, not somewhere where they don\'t really belong.[详细]

2023-02-27 08:29 分类：问答
Why can C++ functors be preferable to objects with named methods?

I recently have got excited by functors and been using them all over the place.Then the situation arose where I needed my functor to perform two different operations and I thought about adding another[详细]

2023-02-22 15:18 分类：问答
Problem with a Functor instance over the keys in Map from Data.Map

I\'m trying to write Eric Kidd\'s and Sigfpe\'s code for a probability monad using Data.Map as a backend but I\'m stuck with a Functor instance.[详细]

2023-02-22 02:08 分类：问答
Haskell multiple functors

I\'m making a fibonacci heap implementation in Haskell, and I\'m not sure exactly what the clean way to do it.[详细]

2023-02-21 12:11 分类：问答
Should I use functions or stateless functors?

These 2 piece of code do same thing. And it will be used in sort function as you can see. Which is better? I usually write latter one. But I saw some coders do it like former one.[详细]

2023-02-21 05:59 分类：问答
Anonymous Functors in G++?

I have some code that works in VS2008 but not in G++ that works as: struct IIterationFunctor { virtual bool operator()( SStateInfo& rStateInfo ) = 0;[详细]

2023-02-20 01:59 分类：问答
Understanding how Either is an instance of Functor

In my free time I\'m learning Haskell, so this is a beginner question. In my readings I came across an example illustrating how Either a is made an instance of Functor:[详细]

2023-02-15 00:30 分类：问答
Using functors for global variables?

I\'m learning Haskell, and am implementing an algorithm for a class. It works fine, but a requirement of the class is that I keep a count of the total number of times I multiply or add two numbers. Th[详细]

2023-02-13 06:07 分类：问答