From b2d65487156e87c7af8ab5ed6d41d78524bed22b Mon Sep 17 00:00:00 2001
From: Jeff Bezanson <jeff.bezanson@gmail.com>
Date: Sat, 19 Aug 2017 14:18:32 -0400
Subject: [PATCH] fix bug in printing the character #\x0

---
 print.c            | 5 ++++-
 tests/unittest.lsp | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/print.c b/print.c
index 29b9e98..1b17bad 100644
--- a/print.c
+++ b/print.c
@@ -635,7 +635,10 @@ static void cvalue_printdata(ios_t *f, void *data, size_t len, value_t type,
         seq[nb] = '\0';
         if (print_princ) {
             // TODO: better multibyte handling
-            outs(seq, f);
+            if (wc == 0)
+                ios_putc(0, f);
+            else
+                outs(seq, f);
         }
         else {
             outsn("#\\", f, 2);
diff --git a/tests/unittest.lsp b/tests/unittest.lsp
index f2eb90e..1046b7f 100644
--- a/tests/unittest.lsp
+++ b/tests/unittest.lsp
@@ -78,6 +78,7 @@
 (assert (equal? (uint64 (double -123)) #uint64(0xffffffffffffff85)))
 
 (assert (equal? (string 'sym #byte(65) #wchar(945) "blah") "symA\u03B1blah"))
+(assert (= (length (string #\x0)) 1))
 
 (assert (> 9223372036854775808 9223372036854775807))