Recent questions tagged rust

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rust - What's the difference between len() and capacity()?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 613 views

rust - "Variable does not live long enough" when returning a Result containing a reference but it does live long enough

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 800 views

rust - Is it possible to mark a potentially uninitialized variable as good without using unsafe or panicking?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 840 views

rust - Mutable borrow in a getter not living long enough

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 618 views

rust - How to return a future combinator with `&self`

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 724 views

rust - Can an FFI function modify a variable that wasn't declared mutable?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.5k views

rust - What's the fastest way of finding the index of the maximum value in an array?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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rust - What does it mean for a trait to have a lifetime parameter?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 714 views

rust - Is it possible to create a macro which counts the number of expanded items?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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rust - Macro for defining trait aliases

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 579 views

rust - How do I return an Iterator that's generated by a function that takes &'a mut self (when self is created locally)?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 811 views

rust - Can I create a mutable slice &mut [u8] from a single byte (u8)?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 810 views

rust - How can I reuse a box that I have moved the value out of?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 734 views

rust - How do I create a function that accepts an iterator of i32s as either values or references and sums them?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 685 views

rust - Confused about using trait with lifetime as generic parameter constraint

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 814 views

rust - How can I have an unused type parameter in a struct?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 949 views

rust - How to pattern match on values inside a type implementing Deref, such as Box, without copying the contents?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.0k views

rust - Option<Receiver> Moved in Previous Loop Iteration

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 743 views

rust - Getting 'Missing Lifetime specifier' error

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 680 views

rust - Is there a way that we can convert from futures 0.1 to the standard library futures?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 986 views

rust - Is it possible to have a heterogeneous vector of types that implement Eq?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 585 views

rust - Explain the behavior of *Rc::make_mut and why it differs compared to Mutex

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 794 views

rust - Lifetimes for method returning iterator of structs with same lifetime

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.3k views

rust - How to clone last element from vector?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.3k views

rust - How do I read multiple integers from a single line of stdin?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 761 views

rust - Why do I get an "overflow evaluating the requirement" error for a simple trait implementation?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 854 views

rust - Is it possible to populate a large set at compile time?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 1.0k views

rust - Why isn't this rvalue promoted to an lvalue as specified in the reference?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 587 views

rust - How to bind multiple fields of a boxed struct without getting "use moved value" error?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 583 views

rust - Maximum size of an array in 32 bits?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 582 views

rust - Why is it possible to have multiple mutable references with static lifetime in same scope

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 571 views

rust - How do I access a variable outside of an `if let` expression?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 436 views

rust - Why does an if without an else always result in () as the value?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 596 views

rust - What is the correct type to use for an array index?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer 592 views

rust - How do I use a custom comparator function with BTreeSet?

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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