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Preliminary Notes
This article was published on 2015-12-29 19:22:14, and is now backed up and updated using MarkDown and image hosting. The original images have been downloaded from the CSDN image server. (BlogID=014)
Date: 2015.12.29
Environment Description
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Introduction
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Description
A long time ago, while looking at some code in the Linux kernel, I was very puzzled by something. That is
struct XXX{
void * (*xxx1)(void * a);
void * (*xxx2)(void *b);
};
struct XXX test{
.xxx1=xxx11;
.xxx2=xxx22;
};
void xxx11(void *a){
}
void xxx22(void *b){
}In the above, the two lines of initialization code highlighted in red have always left me perplexed; I thought this special syntax only existed in Linux.
Now, inadvertently, I have finally discovered the source of this syntax.
That is: the structure initialization syntax in standard C.
This syntax comes from the C99 standard.
This is purely hand-typed, and there may be errors; corrections are welcome.
Postscript
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References
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