...compat(sym,impl,verid)    \
        __asm__(".symver " #impl ", " #sym "@" #verid)
#define __sym_default(sym,impl,verid...

...taking this into account...

Looking at the impl, it's pretty simple.

Would it make...

...AllocatorFN fn = {
        alloc: &alloc_impl,
        resize: &resize_impl,
        free: &free_impl
    };
}
```

That's it

```D...

...might compare the D Trie impl with a Rust Trie impl in the future, but...

...next step, I'd split up the impl() function so that I get a better...

...i, child; node.edges)
            {
                impl(child, path ~ cast(char)('0' + i));
            }
        }
        impl(this);
    }
}

/**
 * Loads the...

...gc.impl.conservative.gc.Gcx.mark!(false, true, true).mark(core.internal.gc.impl.conservative...

...i, child; node.edges)
            {
                impl(child, path ~ cast(char)('0' + i));
            }
        }
        impl(this);
    }
}

/**
 * Loads the...

...i, child; node.edges)
            {
                impl(child, path ~ cast(char)('0' + i));
            }
        }
        impl(this);
    }
}

/**
 * Loads the...

...i, child; node.edges)
            {
                impl(child, path ~ cast(char)('0' + i));
            }
        }
        impl(this);
    }
}

/**
 * Loads the...