移植Matlab的阵列C / C ++ [英] Porting Matlab arrays to C/C++

问题描述

我移植MATLAB程序，以C / C ++。我有几个问题，但最重要的问题之一是在这里：Matlab的对待阵列，任何尺寸相同。假设我们有这样的功能，

I am porting a matlab program to C/C++. I have several problems with it but one of the most important ones is here: Matlab treats arrays with any dimension the same. Assume we have a function like this,

function result = f(A, B, C)
result = A + 2 * B + C;

的 A 的乙的和的 C 的可以是任意尺寸/大小的数组。我不是一个C / C ++亲，但我想这不是一个简单的＆安培;在C.一个想法的清洁工作是使用空指针数组传递给函数。我应该怎么做的尺寸和数组操作（+ / *）呢？
另一个想法是使用C ++类。我也许可以写一个模板类的所有必需的数组操作，如（*，+，LT;＆LT ;, >> ...）。但我相信这将是一个辛苦的工作。没有任何人有一个更好的主意吗？支持+和*操作？任何简单/多维/单头文件/开源数组类

A, B, and C can be arrays of any dimensions/size. I am not a C/C++ pro, but I guess it is not a simple & clean job in C. One idea is to use void pointers to pass the arrays to the function. What should I do with the dimensions and array operations (+/*) then? The other idea is to use C++ classes. I might be able to write a template class with all the required array operations such as (*, +, <<, >>, ...). But I am sure it's going to be an exhausting job. Does anybody have a better idea? Any simple/multidimensional/single header file/opensource array class that supports + and * operators?

推荐答案

我会建议你使用C ++类。当然，没有实现自己的这些类。还有人在那里这样的任务做了出色的工作。 @Darrem建议嘘声:: uBLAS库。我会建议征。它更多的功能，的差别的，这是很好的维护，它支持编译器的宽量，其性能是接近，有时不是像英特尔MKL专有库更好。

I would recommend you to use C++ classes. Of course do not implement those classes yourself. There are people out there doing an excellent job in such a task. @Darrem suggested boos::ublas. I would recommend eigen. It much more functionality that ublas, it is well maintained, it supports a wide amount of compilers and its performance it is close and sometimes better than proprietary libraries like Intel MKL.

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