Adding Java and C++ to the MQTT benchmarks or: How I Learned to Stop Worrying and Love the Garbage Collector

[Ola Fosheim Grøstad" <ola.fosheim.grostad+dlang at gmail.com>]

On Thursday, 9 January 2014 at 09:58:24 UTC, Walter Bright wrote:
> Please explain how this can work passing both string literals 
> and allocated strings to cat().

By having your own string allocator that tests for membership 
when you free (if you allow free and foreign strings in your cat)?

> How do you return a string that is the path part of a 
> path/filename? (The terminating 0 is not a problem solved by 
> creating your own allocator.)

If you discard the original you split at '/'. If you use your own 
stringallocator you don't have to worry about free... You either 
let the garbage remain until the pool is released or have a 
separate allocation structure that allows internal splits (no 
private size info before first char).