Searched hist:"0 f595bab" (Results 1 – 3 of 3) sorted by relevance
/openbmc/linux/rust/kernel/ |
H A D | build_assert.rs | 0f595bab Thu Nov 10 10:41:38 CST 2022 Gary Guo <gary@garyguo.net> rust: build_assert: add `build_{error,assert}!` macros
Add the `build_error!` and `build_assert!` macros which leverage the previously introduced `build_error` crate. Do so in a new module, called `build_assert`.
The former fails the build if the code path calling it can possibly be executed. The latter asserts that a boolean expression is `true` at compile time.
In particular, `build_assert!` can be used in some contexts where `static_assert!` cannot:
fn f1<const N: usize>() { static_assert!(N > 1);` // Error. build_assert!(N > 1); // Build-time check. assert!(N > 1); // Run-time check. }
#[inline] fn f2(n: usize) { static_assert!(n > 1); // Error. build_assert!(n > 1); // Build-time check. assert!(n > 1); // Run-time check. }
Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Wei Liu <wei.liu@kernel.org> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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H A D | prelude.rs | 0f595bab Thu Nov 10 10:41:38 CST 2022 Gary Guo <gary@garyguo.net> rust: build_assert: add `build_{error,assert}!` macros
Add the `build_error!` and `build_assert!` macros which leverage the previously introduced `build_error` crate. Do so in a new module, called `build_assert`.
The former fails the build if the code path calling it can possibly be executed. The latter asserts that a boolean expression is `true` at compile time.
In particular, `build_assert!` can be used in some contexts where `static_assert!` cannot:
fn f1<const N: usize>() { static_assert!(N > 1);` // Error. build_assert!(N > 1); // Build-time check. assert!(N > 1); // Run-time check. }
#[inline] fn f2(n: usize) { static_assert!(n > 1); // Error. build_assert!(n > 1); // Build-time check. assert!(n > 1); // Run-time check. }
Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Wei Liu <wei.liu@kernel.org> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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H A D | lib.rs | 0f595bab Thu Nov 10 10:41:38 CST 2022 Gary Guo <gary@garyguo.net> rust: build_assert: add `build_{error,assert}!` macros
Add the `build_error!` and `build_assert!` macros which leverage the previously introduced `build_error` crate. Do so in a new module, called `build_assert`.
The former fails the build if the code path calling it can possibly be executed. The latter asserts that a boolean expression is `true` at compile time.
In particular, `build_assert!` can be used in some contexts where `static_assert!` cannot:
fn f1<const N: usize>() { static_assert!(N > 1);` // Error. build_assert!(N > 1); // Build-time check. assert!(N > 1); // Run-time check. }
#[inline] fn f2(n: usize) { static_assert!(n > 1); // Error. build_assert!(n > 1); // Build-time check. assert!(n > 1); // Run-time check. }
Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Wei Liu <wei.liu@kernel.org> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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