On Wednesday, 8 January 2014 at 15:21:21 UTC, Johannes Pfau wrote:
But IIRC druntime does some UTF normalization or something on strings or was that only for foreach over strings?
No, all it does is if you ask for foreach(dchar c; string){}, it will decode the multi-byte sequences. This does not require druntime, the compiler just outputs the code for it.
Decoding the multi byte sequences isn't much code, it is just some loads, shifts, and bit masks. Fairly lightweight.
