Scilab-C接口中的奇怪函数定义

问题描述

我正在谈论Scilab C包装程序的示例: http://www.scilab.org/doc/intro/node89.html .

I'am talking about this example of a Scilab<->C wrapper: http://www.scilab.org/doc/intro/node89.html.

奇怪的是这个部分:

int intsfoubare(fname)
 char *fname;
   {
     ....(some code)
   }

这是某种函数定义，但是我真的不明白char * fname有什么用，因为fname对我来说毫无意义.

It is some kind of function defintion but I really don't understand what the char *fname is good for also just fname as parameter makes no sense to me.

有人可以解释吗?

[开始哭泣]一般来说，Scilabs文档是一个负面的例子，但是当涉及到C接口时，情况甚至更糟.[哭完]

[start crying]Scilabs documentation in general is a negative example but when it comes to the C-interface it's even worse.[end crying]

谢谢！

推荐答案

我相信您正在寻找的是K& R样式的函数声明.它大约等效于 int intsfoubare(char * fname){...} ，但是在调用该函数时具有更大的灵活性.有关更多详细信息，请参见这篇文章.

I believe what you're looking at is the K&R style of function declaration. It's approximately equivalent to int intsfoubare(char *fname) { ... }, but allows more somewhat more flexibility in calling the function. See this post for more details.

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