diff options
Diffstat (limited to 'src/libstd/macros.rs')
| -rw-r--r-- | src/libstd/macros.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/libstd/macros.rs b/src/libstd/macros.rs index 4032b63790b..b31ae92d742 100644 --- a/src/libstd/macros.rs +++ b/src/libstd/macros.rs @@ -197,3 +197,8 @@ macro_rules! local_data_key ( pub static $name: ::std::local_data::Key<$ty> = &::std::local_data::Key; ) ) + +#[macro_export] +macro_rules! if_ok ( + ($e:expr) => (match $e { Ok(e) => e, Err(e) => return Err(e) }) +) |