Fix bug #17823 : non-modifying tr/// stringifies references

p4raw-id: //depot/perl@17984

1 files changed, 5 insertions, 1 deletions

diff --git a/t/op/tr.t b/t/op/tr.t
index 69f3796117..3a4f610c02 100755
--- a/t/op/tr.t
+++ b/t/op/tr.t
@@ -6,7 +6,7 @@ BEGIN {
     require './test.pl';
 }
 
-plan tests => 97;
+plan tests => 99;
 
 my $Is_EBCDIC = (ord('i') == 0x89 & ord('J') == 0xd1);
 
@@ -379,3 +379,7 @@ my %foo = ();
 eval '$foo{bar} =~ tr/N/N/';
 is( $@, '',         'implicit count outside hash bounds' );
 is( scalar keys %foo, 0,   "    doesn't extend the hash");
+
+$x = \"foo";
+is( $x =~ tr/A/A/, 2, 'non-modifying tr/// on a scalar ref' );
+is( ref $x, 'SCALAR', "    doesn't stringify its argument" );