fix Issue 21920 - [REG master] Error: auto can only be used as part…

… of `auto ref` for template function parameters
dlang · May 17, 2021 · c162202 · c162202
1 parent 116d33b
commit c162202
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/std/stdio.d b/std/stdio.d
@@ -4356,6 +4356,13 @@ void writeln(T...)(T args)
     useInit(stdout.lockingTextWriter());
 }
 
+@system unittest
+{
+    // https://issues.dlang.org/show_bug.cgi?id=21920
+    void function(string) printer = &writeln!string;
+    if (false) printer("Hello");
+}
+
 
 /***********************************
 Writes formatted data to standard output (without a trailing newline).