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sys: doc update

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Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
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Wolfgang Bumiller 2020-01-22 08:56:51 +01:00
parent fe5ab619fb
commit d07286c7a3
1 changed files with 3 additions and 0 deletions
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proxmox/src/sys/macros.rs
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@ -30,6 +30,9 @@ macro_rules! io_bail {
#[doc(hidden)] #[doc(hidden)]
/// Non-panicking assertion: shortcut for returning an `io::Error` if the condition is not met. /// Non-panicking assertion: shortcut for returning an `io::Error` if the condition is not met.
/// Essentially: `if !expr { io_bail_last!() }`. /// Essentially: `if !expr { io_bail_last!() }`.
///
/// Note that this uses `errno`, care must be taken not to overwrite it with different value as a
/// side effect.
#[macro_export] #[macro_export]
macro_rules! io_assert { macro_rules! io_assert {
($value:expr) => { ($value:expr) => {