Rework macro handling to support correct repetitions

1 files changed, 8 insertions, 1 deletions

diff --git a/samples/std.rs b/samples/std.rs
index 100fcb5e..11913768 100644
--- a/samples/std.rs
+++ b/samples/std.rs
@@ -6,7 +6,7 @@ macro_rules! try {
 }
 #[macro_export]
 macro_rules! assert{
-    ($e:expr) => ({ if !($e) { panic!("Assertion {} failed", stringify!($e)); } });
+    ($e:expr) => ({ if !($e) { panic!("assertion failed: {}", stringify!($e)); } });
 }
 #[macro_export]
 macro_rules! assert_eq{
@@ -22,6 +22,13 @@ macro_rules! assert_eq{
         });
 }
 
+#[macro_export]
+macro_rules! write{
+    ($f:expr, $($fmt:tt)*) => {
+        $crate::fmt::write($f, format_args!($($fmt)*))
+    };
+}
+
 pub mod option
 {
     pub enum Option<T>