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2020-03-08constify `mem::discriminant`Bastian Kauschke-0/+1
2020-03-04Auto merge of #68952 - faern:stabilize-assoc-int-consts, r=dtolnaybors-5/+0
Stabilize assoc_int_consts associated int/float constants The next step in RFC https://github.com/rust-lang/rfcs/pull/2700 (tracking issue #68490). Stabilizing the associated constants that were added in #68325. * Stabilize all constants under the `assoc_int_consts` feature flag. * Update documentation on old constants to say they are soft-deprecated and the new ones should be preferred. * Update documentation examples to use new constants. * Remove `uint_macro` and use `int_macro` for all integer types since the macros were identical anyway. r? @LukasKalbertodt
2020-02-27Remove spotlight usageGuillaume Gomez-1/+0
2020-02-26Rollup merge of #67637 - Mark-Simulacrum:primitive-mod, r=dtolnayDylan DPC-0/+3
Add primitive module to libcore This re-exports the primitive types from libcore at `core::primitive` to allow macro authors to have a reliable location to use them from. Fixes #44865
2020-02-23Bump core::primitive to 1.43David Tolnay-1/+1
2020-02-22Stabilize const for integer {to,from}_{be,le,ne}_bytes methodsTrevor Spiteri-1/+0
All of these functions can be implemented simply and naturally as const functions, e.g. u32::from_le_bytes can be implemented as (bytes[0] as u32) | (bytes[1] as u32) << 8 | (bytes[2] as u32) << 16 | (bytes[3] as u32) << 24 So stabilizing the constness will not expose that internally they are implemented using transmute which is not const in stable.
2020-02-20Rollup merge of #68978 - ecstatic-morse:const-int-pow, r=oli-obkDylan DPC-0/+3
Make integer exponentiation methods unstably const cc #53718 This makes the following inherent methods on integer primitives into unstable `const fn`: - `pow` - `checked_pow` - `wrapping_pow` - `overflowing_pow` - `saturating_pow` - `next_power_of_two` - `checked_next_power_of_two` - `wrapping_next_power_of_two` Only two changes were made to the implementation of these methods. First, I had to switch from the `?` operator, which is not yet implemented in a const context, to a `try_opt` macro. Second, `next_power_of_two` was using `ops::Add::add` (see the first commit) to "get overflow checks", so I switched to `#[rustc_inherit_overflow_checks]`. I'm not quite sure why the attribute wasn't used in the first place.
2020-02-12Remove uint_macros that was identical to int_macrosLinus Färnstrand-4/+0
2020-02-12Stabilize assoc_int_constsLinus Färnstrand-1/+0
2020-02-11Auto merge of #68491 - pnkfelix:hide-niches-under-unsafe-cell, r=olibors-0/+1
Hide niches under UnsafeCell Hide any niche of T from type-construction context of `UnsafeCell<T>`. Fix #68303 Fix #68206
2020-02-10Add `repr(no_niche)` to `UnsafeCell`. Fix #68303.Felix S. Klock II-0/+1
2020-02-08Make the ASCII ctype inherent methods constDylan MacKenzie-0/+1
2020-02-08Make integer power methods constDylan MacKenzie-0/+3
2020-02-06Add primitive module to libcore/stdMark Rousskov-0/+3
This re-exports the primitive types from libcore at `core::primitive` to allow macro authors to have a reliable location to use them from.
2020-02-04Use consistent feature namingDylan MacKenzie-4/+4
2020-02-04Const-stabilize some arithmetic intrinsicsDylan MacKenzie-0/+1
2020-02-04Make `saturating_mul` a `const fn`Dylan MacKenzie-0/+1
Co-Authored-By: 9999years <rbt@sent.as>
2020-02-04Make overflowing arithmetic `const`Dylan MacKenzie-0/+1
Co-Authored-By: 9999years <rbt@sent.as>
2020-02-04Make checked arithmetic besides division `const`Dylan MacKenzie-0/+1
Co-Authored-By: 9999years <rbt@sent.as>
2020-02-04Make euclidean division `const`Dylan MacKenzie-0/+1
Co-Authored-By: 9999years <rbt@sent.as>
2020-02-04Auto merge of #68708 - Mark-Simulacrum:stage0-step, r=pietroalbinibors-1/+0
Step stage0 to bootstrap from 1.42 This also includes a commit which fixes the rustfmt downloading logic to redownload when the rustfmt channel changes, and bumps rustfmt to a more recent version.
2020-02-04Stabilize `core::iter::once_with()`Yuki Okushi-1/+0
2020-01-31Drop cfg(bootstrap) codeMark Rousskov-1/+0
2020-01-23Unlock assoc_int_consts in core+stdLinus Färnstrand-0/+1
2020-01-18slice_patterns: remove internal uses of gateMazdak Farrokhzad-1/+1
2020-01-12Diagnostics should not end with a full stopvarkor-1/+1
2020-01-11Constify alloc::LayoutLukas Lueg-0/+1
Tracking issue #67521, Layout::new in #66254
2020-01-10Remove unnecessary `const_fn` feature gatesDylan MacKenzie-1/+0
This flag opts out of the min-const-fn checks entirely, which is usually not what we want. The few cases where the flag is still necessary have been annotated.
2020-01-02Add Iterator::try_findMOZGIII-0/+1
2019-12-31Constify ResultLukas Lueg-0/+1
2019-12-27Clean up const-hack from #63810jumbatm-0/+2
2019-12-23Minimize unsafety in encode_utf8Mark Rousskov-0/+1
Use slice patterns to avoid having to skip bounds checking
2019-12-23Rollup merge of #67466 - oli-obk:const_intrinsic, r=CentrilMazdak Farrokhzad-0/+2
Require const stability attributes on intrinsics to be able to use them in constant contexts r? @Centril finally fixes #61495 cc @RalfJung
2019-12-22Format the worldMark Rousskov-37/+50
2019-12-20Require const stability attributes on intrinsics to be able to use them in ↵Oliver Scherer-0/+2
constant contexts
2019-12-18Propagate cfg bootstrapMark Rousskov-5/+3
2019-12-14Auto merge of #67224 - nikomatsakis:revert-stabilization-of-never-type, ↵bors-1/+1
r=centril Revert stabilization of never type Fixes https://github.com/rust-lang/rust/issues/66757 I decided to keep the separate `never-type-fallback` feature gate, but tried to otherwise revert https://github.com/rust-lang/rust/pull/65355. Seemed pretty clean. ( cc @Centril, author of #65355, you may want to check this over briefly )
2019-12-14Revert "Stabilize the `never_type`, written `!`."Niko Matsakis-1/+1
This reverts commit 15c30ddd69d6cc3fffe6d304c6dc968a5ed046f1.
2019-12-13Reuse the `staged_api` feature for `rustc_const_unstable`Oliver Scherer-1/+1
2019-12-05Implement core::panic::Location::caller using #[track_caller].Adam Perry-0/+1
2019-12-05libcore: rnable 2 unstable const fn featuresRemy Rakic-0/+2
So that we can bootstrap successfully
2019-11-21Stabilize the `never_type`, written `!`.Mazdak Farrokhzad-1/+1
2019-11-12Snap cfgsMark Rousskov-1/+0
2019-11-06gate rustc_on_unimplemented under rustc_attrsMazdak Farrokhzad-1/+1
2019-10-30work around aggressive syntax feature gatingRalf Jung-0/+12
2019-10-25RFC 2008: StabilizationDavid Wood-1/+1
This commit stabilizes RFC 2008 (#44109) by removing the feature gate. Signed-off-by: David Wood <david@davidtw.co>
2019-10-08Stabilize mem::take (mem_take)Jon Gjengset-1/+0
Tracking issue: https://github.com/rust-lang/rust/issues/61129
2019-09-25Snap cfgs to new betaMark Rousskov-4/+0
2019-09-24Stabilize `str::len`, `[T]::len`, `is_empty` and `str::as_bytes` as const fnOliver Scherer-3/+3
2019-09-23Move `--cfg bootstrap` out of `rustc.rs`Alex Crichton-1/+1
Instead let's do this via `RUSTFLAGS` in `builder.rs`. Currently requires a submodule update of `stdarch` to fix a problem with previous compilers.
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