C中是否有一个常用的(void *)->(void *)键值存储区?

测试嵌入式代码时,我发现我需要一个键值存储,其键和值均为(void *)。 (测试套件在x86_64上运行。)

通常,我存储的数据应该与结构的实例相关联(在测试过程中),但是我不想将数据添加到结构本身。即密钥将是结构的地址。

(I know I could #ifdef TESTING around extra fields in structs, but it makes them less readable.)

我不需要高性能,O(N)可以。

I could write myself a linked-list, with next, key and value at each node, but I thought I would ask first.

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