&CORE::write()

This commit allows &CORE::write to be called through references and
via ampersand syntax.  No change to pp_enterwrite was necessary, as it
can already handle nulls.

1 files changed, 6 insertions, 0 deletions

diff --git a/t/op/coreamp.t b/t/op/coreamp.t
index 9ab153bc29..2027f41ac5 100644
--- a/t/op/coreamp.t
+++ b/t/op/coreamp.t
@@ -822,6 +822,12 @@ test_proto 'warn';
   lis [&mywarn()], [1], '&warn retval in list context';
 }
 
+test_proto 'write';
+$tests ++;
+eval {&mywrite};
+like $@, qr'^Undefined format "STDOUT" called',
+   "&write without arguments can handle the null";
+
 # This is just a check to make sure we have tested everything.  If we
 # haven’t, then either the sub needs to be tested or the list in
 # gv.c is wrong.