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Date: Fri, 2 Dec 2022 17:14:53 +0100 From: ojeda@...nel.org To: Miguel Ojeda <ojeda@...nel.org>, Wedson Almeida Filho <wedsonaf@...il.com>, Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, Björn Roy Baron <bjorn3_gh@...tonmail.com> Cc: rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, patches@...ts.linux.dev Subject: [PATCH v2 22/28] rust: str: add `fmt!` macro From: Wedson Almeida Filho <wedsonaf@...il.com> Add the `fmt!` macro, which is a convenience alias for the Rust `core::format_args!` macro. For instance, it may be used to create a `CString`: CString::try_from_fmt(fmt!("{}{}", "abc", 42))? Signed-off-by: Wedson Almeida Filho <wedsonaf@...il.com> Reviewed-by: Gary Guo <gary@...yguo.net> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <ojeda@...nel.org> --- rust/kernel/str.rs | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/rust/kernel/str.rs b/rust/kernel/str.rs index 17dc8d273302..b771310fa4a4 100644 --- a/rust/kernel/str.rs +++ b/rust/kernel/str.rs @@ -583,3 +583,9 @@ impl Deref for CString { unsafe { CStr::from_bytes_with_nul_unchecked(self.buf.as_slice()) } } } + +/// A convenience alias for [`core::format_args`]. +#[macro_export] +macro_rules! fmt { + ($($f:tt)*) => ( core::format_args!($($f)*) ) +} -- 2.38.1
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