April 2014
Beginner to intermediate
830 pages
15h 21m
Chinese
Content preview from Mathematica 錦囊妙計
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第十七章
17.4 呼叫 C 與 C++ 函式
問題點
你想從 Mathematica 呼叫 C 語言的函式。
解決方案
以下將介紹如何由 Mathematica 呼叫 C 語言建立的函式。本範例使用 Microsoft Visual
C++ 2005 版本，其他程式設計環境請參考「延伸資訊」。Mathematica 與 C 語言進行溝
通的最簡單方式是透過 mprep 處理器，它藉由 C 函式的樣板描述檔案產生黏合程式碼
（glue code），作為 Mathematica 與 C 函式溝通的介面，以下是一個 mprep 的樣板描述
檔案範例，檔案中包含 3 個 C 函式。[Page-695]
以下是相對應的 C 語言程式碼。需注意 Mathematica 串列是以 C 陣列指標的方式傳入
C 函式，而且 C 陣列的長度也需定義額外引數傳入函式。下列程式碼中的
WinMain
是
Microsoft Visual Studio 的 Windows 程式必須具備的，
WinMain
函式內容是固定的，可以
ch17.indd 690 2014/4/2 下午 04:27:19
17.4 呼叫 C 與 C++ 函式
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691
直接複製到自己的專案中，至於這些函式的內容並非一定得用 C 語言實作不
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.