我看到了一些职能定义,如最近与德国驻博恩集团一起玩 的:
static VALUE
ripper_pos(self)
VALUE self;
{
//code here
}
为什么在括号外的<代码>本身? 这是否有效?
这些是旧的K& 1. 宣布参数类型为:
int func(a, b, c)
int a;
int b;
int c;
{
return a + b + c;
}
这与宣布职能参数的较现代方式相同:
int func(int a, int b, int c)
{
return a + b + c;
}
“新风格”声明基本上得到普遍赞同。
这是所谓的“旧”声明功能论点的变式。 如果是老的,你可以在母体内提出书面论点,但是,在封闭的母体之后,你必须就每一论点加以界定。
换言之,它相当于<代码>ripper_pos(>)。 页: 1
是的,它采用一种老式的功能定义,在母体内列出参数、种类,然后在功能机构开张之前申报这些变量的类型。 www.un.org/Depts/DGACM/index_french.htm
页: 1 c. K&R C在ANSI C执行分类参数之前使用该公约。
static VALUE // A static function that returns VALUE type.
ripper_pos(self) // Function ripper_pos takes a parameter named self .
VALUE self; // The self parameter is of type VALUE .
The s the old-type C function declaration syntax 。
这确实是旧的C法典,其中你首先具体说明了论点名称,然后说明其类型。 例如,见here。
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