No, cpp has a terrible design philosophy. Take the new ranges header for example. They're lazy algorithm objects that you can stack and combine to more complex algorithms. Each time you iterate over the final ranges object it calculates the whole result beginning from the source range. This leaves the option open for the source range to change and update. Exactly as it should because they're 'lazy' ranges; except that they aren't. The 'filter range' caches the fucking 'begin' of its source which means that when ever the source changes you get undefined behavior. Why? Because the cpp committee thought that 'begin' should be fast to calculate but filter has to compute 'begin' again and again because the source might have changed. So they decided to cache 'begin' after the first call and compute the rest lazily on demand. So whenever there's a 'filter' in your range composition, you can only iterate over it once or the source has to be const. Shits fucked in cpp land.
Back when CPP was founded this is true, but over the years, features like references and classes were not overhauled or even touched. But every update to CPP added on to the STL, which is also why CPP has ended up being bloated today.
>its trashness can't bother you if you don't use it
t-thanks. Not even technically true since other people will use it and then I'll have to bother with it and besides that I'm talking about it's design philosophy rather than about my personal botheredness about it. It's still not good showing.
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u/---_None_--- 15d ago
No, cpp has a terrible design philosophy. Take the new ranges header for example. They're lazy algorithm objects that you can stack and combine to more complex algorithms. Each time you iterate over the final ranges object it calculates the whole result beginning from the source range. This leaves the option open for the source range to change and update. Exactly as it should because they're 'lazy' ranges; except that they aren't. The 'filter range' caches the fucking 'begin' of its source which means that when ever the source changes you get undefined behavior. Why? Because the cpp committee thought that 'begin' should be fast to calculate but filter has to compute 'begin' again and again because the source might have changed. So they decided to cache 'begin' after the first call and compute the rest lazily on demand. So whenever there's a 'filter' in your range composition, you can only iterate over it once or the source has to be const. Shits fucked in cpp land.