...size_t len = es1->len + utf_codeLength(sz, v);
        s = mem.malloc((len + 1) * sz...

...index (artificial example, indeed)
    auto len = a.length;
    auto median = len / 2;
    // a logical step...

...even len  = (mean . take 2 . drop (mid - 1)) ordered
          | otherwise = ordered !! mid
  where len = length...

...len);
                                                                ^
mysql_com.h(424) : Error: ')' expected
                          const unsigned char *header, size_t head_len...

auto darray = buffer[0 .. buf_len]

...you go:

auto arr = buffer[0..buf_len];

Now you can operate on this array...

...read_into(char *buffer, size_t buf_len);

I would like to use D's...

...if (offset > 0) {
         array.length = len + offset;
         for (i=len-1 ; i>=low ; i--)
             array...

...code like:
auto l = arr.len;
arr.len = 10;
arr.len++;

A big problem: it...

...of code like:
int len = array.length;
and then you use len in the rest...