macro_rules! dbg {
() => { ... };
($val:expr $(,)?) => { ... };
($($val:expr),+ $(,)?) => { ... };
}
Expand description
Prints and returns the value of a given expression for quick and dirty debugging.
Like std::dbg
, but used crate::Debug
instead of std::fmt::Debug
Stability
The exact output printed by this macro should not be relied upon and is subject to future changes.
Panics
Panics if writing to std::io::stderr
fails.