Tag: mention

Can std::future cause coredump without get or wait

void func() { std::future<int> fut = std::async(std::launch::async, []{ std::this_thread::sleep_for(std::chrono::seconds(10)); return 8; }); return; } Let’s say that I have such a function. An object fut of std::future<int> is initialized with a std::async job, which will return an integer in the future. But the fut will be immediately released after the function func returns. Is there… Read More Can std::future cause coredump without get or wait

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Implementing ToOwned ('a -> 'static) for an enum containing Cow<'a, str> causes unmet lifetime requirement

Context Playground link: https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=de1286b8bce0dfb840a5fc0b50df25ad I was reading this other SO post, which was saying you can convert a struct containing a Cow to have a ‘static lifetime. Based on that post, I then tried the following: use std::borrow::Cow; enum S<‘a> { A(Cow<‘a, str>), B(i32) } impl ToOwned for S<‘_> { type Owned = S<‘static>; fn… Read More Implementing ToOwned ('a -> 'static) for an enum containing Cow<'a, str> causes unmet lifetime requirement

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Javascript: Get all dates between from and to dates

I am using the following in a ReactJS app: var getDaysArray = function(s, e) { for (var a = [], d = new Date(s); d <= e; d.setDate(d.getDate() + 1)) { a.push(new Date(d)); } return a; }; const abc = new Date(item.DateTo.toDate()).toISOString().substring(0, 10); const def = new Date(item.DateFrom.toDate()).toISOString().substring(0, 10); var daylist = getDaysArray(def, abc); The… Read More Javascript: Get all dates between from and to dates

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