使用 init_seg 调用初始化函数 [英] Using init_seg to call an initialization function

问题描述

我试图确保程序首先调用一个函数，以确保关键对象的初始化.但是，我对 init_seg 应该如何被使用/调用感到困惑.

I am trying to ensure a function will get called first by the program to ensure the initizilation of critical objects. However, I am confused as to how init_seg is suppose to be getting used/called.

例如，从 msdn 的文档看来，以下内容似乎是第一个被调用的.

For example, from the documentation at msdn it would seem as if the following would be the first to be called.

#pragma init_seg( ".CRT$XCC" )

static void InitializeStuff()
{
    printf("InitializeStuff\n");
}

然而，情况似乎并非如此，因为该函数显然不会被自动调用(当然，除非我明确调用它).

However, that does not seem to be the case as that function will just plainly not get called automatically (unless I call it explicitly, of course).

我如何使用 init_set 来确保在我的其他执行代码的其余部分之前调用一个函数?

How can I use init_set to ensure a function is called before the rest of my other executing code?

推荐答案

如果我理解正确，您将所有要首先初始化的全局变量与 #pragma init_seg

If i have understood it right you place all global variables that you want to be initialized first in the same file as the #pragma init_seg

示例:

#pragma init_seg( ".CRT$XCB" )

class A
{
    A()
    {
        printf("first!\n");
    }
};

static A first;

并确保除了要首先初始化的全局变量之外，不要在该文件中放置任何其他全局变量.

And make sure you dont place any other globals in that file than the ones you want to initialized first.

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