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Comment by senozhatsky | Hacker News Reader

Could be. But wouldn't then displayln() require the same string placeholder? Be it "%s", or "{1}" or someting else.

displayln uses the massive _Generic in display_format to supply a large number of formatters automatically. [0]

I see. So when for a char pointer one needs to do

        printf("%p\n", v);

the Generic call must look like this

        displayln((const void *)v);

is it really better?

Or you could have the pointer be a pointer before you feed it to the function.

    void* v;
    v = ...;

    ...

    displayln(v);

The amount of ellipsis shows that your solution is just as heavy weight.