On October 17, 2015 15:52:08 Smith Martin <martin.sm...@theqtcompany.com> wrote:
>>Please understand my POV: I am of the firm belief that Qt has no business >>creating inefficiencies for its users by sloppy implementation. Anywhere. > > I think you are overreacting here, way too much. You have discovered a more > efficient way to handle strings, but that doesn't mean Trolltech created > inefficiency by a sloppy implementation of QString. QString has been used > productively by many users for a long time. The fact that a moere efficient > implementation exists doesn't mean the current implementation is inefficient. QString makes heap allocation and has atomic pointers. I think it was designed for convenience and not for maximum speed. That's okay because Qt is mostly a GUI and not text processing library. >>I find it intolerable that todays software >>takes 1000x the memory, 1000x the CPU capacity and doesn't get a given jobs >>done in less wallclock time than software 20 years ago. > > But the fact is, it usually IS tolerable, because the applications you are > talking about mostly work in human time. > > Your efforts to improve Qt are most appreciated, but you make it sound like > we should publicly name and shame all the engineers who ever worked on > QString but who failed to find the holy grail of the most efficient > implementation. Like I wrote they were very understandable design decisions. Anyway I think a professional developer knows that he should has distance to his code so that he get criticism about it not personal. Understanding criticism and argumentation as a process to write code is, I think, the key to get a good developer. So why they should be feel ashamed if something better comes up. This is called progress und it happens all the time. I think I would be feel ashamed if I would fight other code because of personal reason. Sometimes I feel that way but I hopefully not stick to it. ;-) After reading some proposals about string view it has to my understanding this properties: 1. Makes string usage between different implementation more efficient 2. Improve static analysis - makes ownership clear 3. Gives the different string implementation a common ground You can use easily use a Qt function without creating a QString which can be a big advantage if performance matters. _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
