Macro trace_error::trace_error
[−]
[src]
macro_rules! trace_error { ($err:expr) => { ... }; ($err:expr, $t:ty) => { ... }; }
The core macro that creates the Result::Err(Trace<E>)
value,
but does not return it immediately.
An optional second parameter can be given to indicate the type the Result
should be if type inference cannot determine it automatically.