diff options
Diffstat (limited to 'vendor/crunchy/src/lib.rs')
-rw-r--r-- | vendor/crunchy/src/lib.rs | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/vendor/crunchy/src/lib.rs b/vendor/crunchy/src/lib.rs deleted file mode 100644 index 6de39e2..0000000 --- a/vendor/crunchy/src/lib.rs +++ /dev/null @@ -1,36 +0,0 @@ -//! The crunchy unroller - deterministically unroll constant loops. For number "crunching". -//! -//! The Rust optimizer will unroll constant loops that don't use the loop variable, like this: -//! -//! ```ignore -//! for _ in 0..100 { -//! println!("Hello!"); -//! } -//! ``` -//! -//! However, using the loop variable will cause it to never unroll the loop. This is unfortunate because it means that you can't -//! constant-fold the loop variable, and if you end up stomping on the registers it will have to do a load for each iteration. -//! This crate ensures that your code is unrolled and const-folded. It only works on literals, -//! unfortunately, but there's a work-around: -//! -//! ```ignore -//! debug_assert_eq!(MY_CONSTANT, 100); -//! unroll! { -//! for i in 0..100 { -//! println!("Iteration {}", i); -//! } -//! } -//! ``` -//! This means that your tests will catch if you redefine the constant. -//! -//! To default maximum number of loops to unroll is `64`, but that can be easily increased using the cargo features: -//! -//! * `limit_128` -//! * `limit_256` -//! * `limit_512` -//! * `limit_1024` -//! * `limit_2048` - -#![cfg_attr(not(feature = "std"), no_std)] - -include!(concat!(env!("OUT_DIR"), "/lib.rs")); |