rust/src/test/run-pass/deref-mut-on-ref.rs

// Test that `&mut T` implements `DerefMut<T>`


use std::ops::{Deref, DerefMut};

fn inc<T: Deref<Target=isize> + DerefMut>(mut t: T) {
    *t += 1;
}

fn main() {
    let mut x: isize = 5;
    inc(&mut x);
    assert_eq!(x, 6);
}
libs: add Deref, DerefMut impls for references, fixing a bug in compiler in the process that was blocking this. Fixes #18621. 2014-11-06 16:34:33 -06:00			// Test that `&mut T` implements `DerefMut<T>`

rustdoc: Replace no-pretty-expanded with pretty-expanded Now that features must be declared expanded source often does not compile. This adds 'pretty-expanded' to a bunch of test cases that still work. 2015-03-22 15:13:15 -05:00
rollup merge of #20410: japaric/assoc-types Conflicts: src/liballoc/lib.rs src/libcollections/lib.rs src/libcollections/slice.rs src/libcore/ops.rs src/libcore/prelude.rs src/libcore/ptr.rs src/librustc/middle/traits/project.rs src/libstd/c_str.rs src/libstd/io/mem.rs src/libstd/io/mod.rs src/libstd/lib.rs src/libstd/path/posix.rs src/libstd/path/windows.rs src/libstd/prelude.rs src/libstd/rt/exclusive.rs src/libsyntax/lib.rs src/test/compile-fail/issue-18566.rs src/test/run-pass/deref-mut-on-ref.rs src/test/run-pass/deref-on-ref.rs src/test/run-pass/dst-deref-mut.rs src/test/run-pass/dst-deref.rs src/test/run-pass/fixup-deref-mut.rs src/test/run-pass/issue-13264.rs src/test/run-pass/overloaded-autoderef-indexing.rs 2015-01-02 14:16:41 -06:00			`use std::ops::{Deref, DerefMut};`
std: Stabilize the prelude module This commit is an implementation of [RFC 503][rfc] which is a stabilization story for the prelude. Most of the RFC was directly applied, removing reexports. Some reexports are kept around, however: * `range` remains until range syntax has landed to reduce churn. * `Path` and `GenericPath` remain until path reform lands. This is done to prevent many imports of `GenericPath` which will soon be removed. * All `io` traits remain until I/O reform lands so imports can be rewritten all at once to `std::io::prelude::*`. This is a breaking change because many prelude reexports have been removed, and the RFC can be consulted for the exact list of removed reexports, as well as to find the locations of where to import them. [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0503-prelude-stabilization.md [breaking-change] Closes #20068 2014-12-22 11:04:23 -06:00
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-25 19:06:52 -05:00			`fn inc<T: Deref<Target=isize> + DerefMut>(mut t: T) {`
libs: add Deref, DerefMut impls for references, fixing a bug in compiler in the process that was blocking this. Fixes #18621. 2014-11-06 16:34:33 -06:00			`*t += 1;`
			`}`

			`fn main() {`
Mass rename uint/int to usize/isize Now that support has been removed, all lingering use cases are renamed. 2015-03-25 19:06:52 -05:00			`let mut x: isize = 5;`
libs: add Deref, DerefMut impls for references, fixing a bug in compiler in the process that was blocking this. Fixes #18621. 2014-11-06 16:34:33 -06:00			`inc(&mut x);`
			`assert_eq!(x, 6);`
			`}`