Suppress unused variable warnings in net_trace!.

2016-12-27 23:52:43 +00:00 · 2016-12-27 23:52:43 +00:00 · b409eec11b
parent bba505bc90
commit b409eec11b
1 changed files with 4 additions and 2 deletions
--- a/src/lib.rs
+++ b/src/lib.rs
@ -16,9 +16,11 @@ extern crate alloc;
 extern crate log;

 macro_rules! net_trace {
-    ($($arg:tt)*) => {
+    ($($arg:expr),*) => {
        #[cfg(feature = "use_log")]
-        trace!($($arg)*)
+        trace!($($arg),*);
+        #[cfg(not(feature = "use_log"))]
+        $( let _ = $arg );*; // suppress unused variable warnings
    }
 }