$cargo builderror[E0277]: the trait bound `THRESHOLD: typenum::Max<CEILING>` is not satisfied--> src/lib.rs:39:5|39 | / fn claim<THRESHOLD, F>(&self, t: &mut T<THRESHOLD>, f: F)40 | | where41 | | F: FnOnce(&R<DATA, CEILING>, &mut Maximum<THRESHOLD, CEILING>),42 | ...
error[E0277]: the trait bound `三角形: 求面积` is not satisfied --> src/main.rs:36:29 | 36 | println!("Area: {}", 面积(&_某三角)); | --- ^^^ the trait `求面积` is not implemented for `三角形` | | | required by a bound introduced by this call | = help: the trait...
fn foo<X: Trait>(t: X) {} impl<'a> Trait for &'a i32 {} fn main() { let t: &mut i32 = &mut 0; foo(t); } error[E0277]: the trait bound `&mut i32: Trait` is not satisfied --> src/main.rs:9:5 | 9 | foo(t); | ^^^ the trait `Trait` is not implemented fo...
error message Hello! This is a bug report for a confusing/bad error message: Compiling bug v0.1.0 (E:\Users\keith\Documents\Projects\bug) error[E0277]: the trait bound `T: Generator<ResumeTy>` is not satisfied error[E0308]: mismatched ty...
error[E0277]: the trait bound `(): std::ops::Try` is not satisfied --> src/main.rs:4:13 | 4 | let f = File::open("hello.txt")?; | --- | | | the `?` operator can only be used in a function that returns `Result` (or another type that implements `std::ops::Try`...
fnuse_my_trait(_:implImportantTrait<i32>){} fnmain{ use_my_trait(String::new); } 以前,编译器会给出如下内置错误: error[E0277]:thetraitbound`String:ImportantTrait<i32>`isnotsatisfied -->src/main.rs:12:18 | 12|use_my_trait(String::new); ...
添加FromRow解决了此问题：
error[E0277]:thetraitbound`&[{integer};33]:std::iter::IntoIterator` is not satisfied-->src/main.rs:29:14|29|foriin&a{|^^thetrait`std::iter::IntoIterator` is not implementedfor`&[{integer};33]`|=help:the following implementations were found:<&'a[T;_]asstd::iter::IntoIterator>...
fn is_larger(&self, other: &Self) -> bool { self.area() > other.area() } } 泛型函数的 trait bound(Trait bounds on generic functions) trait 很有用是因为他们允许一个类型对它的行为提供特定的承诺。泛型函数可以显式的限制(或者叫 bound)它接受的类型。考虑这个函数,它并不能编译: ...
添加FromRow解决了此问题：