c++.stlsoft - fast_string_concatenator...
"Pablo Aguilar" <paguilarg hotmail.com> writes:
...is missing support for string_views Mind if I take a shot at this as well? Pablo
Jun 01 2005
"Matthew" <admin.hat stlsoft.dot.org> writes:
"Pablo Aguilar" <paguilarg hotmail.com> wrote in message news:d7la3v$2jh2$1 digitaldaemon.com......is missing support for string_views Mind if I take a shot at this as well?Be my guest! Note: there are two bits of progress on FSC: 1. I updated the implementation after the impl described in IC++ / http://www.cuj.com/documents/s=8188/cuj0406wilson/, in response to feedback from Sean Kelly, who pointed out that I assumed continguous storage, which is not prescribed by the standard for std::basic_string. So the updated impl (as of 1.8.1) uses iterators and algorithms, rather than pointers and memcpy(). (The old functionality is available via specification of the STLSOFT_FAST_STRING_CONCATENATION_ASSUME_CONTIGUOUS_STORAGE pre-processor symbol.) So I'll be working on an updated impl using TMP type-detection techniques so as to work with a wide variety of techniques without using the pre-processor, which'll be featuring in XSTL and a follow-up article in CUJ. I plan to do this work next week, and so will keep you posted on what's happening so we don't screw each other up. 2. Craig Henderson and I are looking at combining our techniques on this. Craig was published in this June's CUJ (mine was in June 2004), and uses compile-time selection of functionality for string classes, c-style strings and characters, whereas mine relies on the (nearly ubiquitous) optimisation of the runtime techniques. Craig's already looked into a comparison, and formulated some ideas for combining the techniques, and I'll be doing the same next week. Again, it might behove you to wait a little while, or at least keep in touch, so we all keep synchronised. I think overall we're likely to come up with a combination of Craig and my techniques, followed by application of the type-detection stuff to make them work with all kinds of string types. At this point, we can factor in any work you might have done to allow string_view - not a value type, as you know - to work as well. Sounds like a lot of fun to be had in next week or two! :-) Matthew
Jun 01 2005