Viewing profile — BenFrantzDale

> Skills are good for instilling non-repeatable, yet intuitive or institutional knowledge. What about just putting that sort of thing in human-targeted documentation? Why call it a…

Have you compared perf with the reference implementation of the P2300 “Senders” proposal? https://github.com/NVIDIA/stdexec

Having it available means we can use it explicitly. For example, I could see a compiler flag making `std::vector ::operator[]` be checked and then if profiling warrants, remove the…

As a C++ user, shared_ptr is great for some things, but it is an anti-pattern. Shared_ptr is much much better. The problem is that shared_ptr isn’t value-semantic and so destroys l…

Agreed. I just opened https://gitlab.kitware.com/cmake/cmake/-/issues/25846 although I have no idea how hard it is to address this sort of issue robustly.

I agree. I wish we had to say `int x = std::uninitialized;`

Can you express value semantics in Python, or is everything still passed by mutable reference still and duck-typed at runtime? I’m being flip, and I like Python for some things, bu…

I thought that too. I think the point there was that you don’t have to push this notion as afar as in/out of functions: that just flipping them within a function can be beneficial.…

I agrée with them and with you. It looks like they work in some poor language that doesn’t allow overloading. Their example of `frobnicate`ing an optional being bad made me think: …

For list comprehension, we have (C++23): `std::ranges::to (items | std::views::filter(shouldInclude) | std::views::transform(f))` it’s not quite `[f(x) for x in items if shouldIncl…

That’s what tests are for. And if `print_table` is factored properly then they won’t want to add flags, they’ll make a new function out of the pieces of `print_table` that has dist…

If the sub-functions could be reused and people would be tempted to change them, then that’s what your tests are for. In fact, it’s often tricky to test the sun-function logic with…

I totally agree. And you can always write mutating “functions” (what get called “algorithms” in the C++ world), like C++’s `std::ranges::sort(range)`.

This blogger obviously wouldn’t get along with Sean Parent of Adobe. It’s old but I have everyone on my team watch this “no raw loops” presentation: https://youtu.be/W2tWOdzgXHA?si…

I write C++ including the conventions around the strong units library we use. What this article promote as “better” seems pretty bad. They dont like `Money m = new Money(10.0m); de…

And conversely, if you are using classical polymorphism, you can get essentially the effect of PImpl by having an abstract base class with a static factory function that returns a …

I’m curious: do you use a `const std::unique_ptr ` or just a `std::unique_ptr ` or do you have a template that provides value semantics for the `Impl`? If I used PImpl a lot I’d ma…

If your internal representation is stable, you can put private functions in a private friend class that is only defined in the cpp file: `private struct access; friend struct acces…

C++ also has `std::expected `.

What I find most fascinating about LLMs isn’t that they are smart but that they are different from the smarts I’m used to. It’s not that smart but it knows far more than any human …

I think polymorphism has its place, and Lakos’s use of them for allocators is one such place: it lets you bind a well-defined interface to a concrete implementation at runtime. So …

Windward and upwind are different in my book: windward is anything to the side of the boat opposite the main boom, whereas upwind is you draw a line perpendicular to the wind direc…

I assume it’s been around forever. https://en.cppreference.com/w/cpp/language/new (Placement-new is the thing you are talking about.) C++20 has `std::construct_at` which does the s…

As one data point: we are replacing Golang with C++ for homogeneity and not-weirdness. C++ has problems but it is very good at scaling and being boring, which is a good thing.

Exactly this. I’ve seen architectural decisions that over time lead to exponential work to implement new features. An architectural fix can lead to a big-O difference in productivi…