Hi, On Fri, 26 Aug 2016 16:47:11 +0200 felix.winkelm...@bevuta.com wrote:
>> Out of curiosity: any example where substring=? would be useful in >> practice? > > Grep the egg repo, you will find some uses. As far as I can see, two out of 733 eggs use substring=? (readline and pathfinder). A total of five calls. All of them, except for a suspicious one in readline, require the use of string-length. In one of the cases, string-length is applied twice on the same input. > But generally speaking, it's somewhat difficult to come up with a > metric of usefulness - the danger being (as always) being blinded by > our own limited experience. Agreed. I'm not proposing doing anything with substring=?. The discussion came up when I wrongly used substring=? in my code and thought it was a bug. After reading and reflecting on what the documentation says, I understand that substring=? is not buggy (although I still think it is a bit convoluted). > Having a substring comparison is somwhat orthogonal to substring > extraction and not having to allocate an intermediate string just to > compare (say) two fields may save some bytes. Not necessarily in all > implementations, but in a sufficiently smart one... Agreed again. All the best. Mario -- http://parenteses.org/mario _______________________________________________ Chicken-hackers mailing list Chicken-hackers@nongnu.org https://lists.nongnu.org/mailman/listinfo/chicken-hackers
