开发者

Constant array of constant objects

How do you define constant array of constant objects in C (not C++)?

I can define

int const Array [] = {
    /* init data here */
开发者_JAVA百科};

but that is a non-constant array of constant objects.

I could use

int const * const Array = {
    /* init data here */
};

and it would probably work. But is it possible do this with array syntax? (Which looks more clean)


An array cannot be "constant" -- what is that even supposed to mean? The array size is already a compile-time constant in any case, and if all the members are constants, then what else do you want? What sort of mutation are you trying to rule out that is possible for a const int[]?


The "double constness" thing applies only to pointers because they can be changed to point to something else1, since the characteristics of arrays are statical by themselves (arrays cannot be changed in size/type/to point to something else) the only const you can apply is to their elements.


  1. so you have the variations "pointer to an int", "pointer to a constant int", "constant pointer to an int", "constant pointer to a constant int".


If you want the elements of array do not modify, just use this:

const int Array[];

0

上一篇:

下一篇:

精彩评论

暂无评论...
验证码 换一张
取 消

最新问答

问答排行榜