(Fnumber_to_string): Make `buffer' long enough.

diff --git a/src/data.c b/src/data.c
index 44f651d7c1d9dd32037054e592bc8b0cb90bfc59..3efa4af16cc4666f3f965999d69e8b88477af739 100644 (file)
--- a/src/data.c
+++ b/src/data.c
@@ -1717,7 +1717,7 @@ NUM may be an integer or a floating point number.")
   (num)
      Lisp_Object num;
 {
-  char buffer[20];
+  char buffer[VALBITS];
 
 #ifndef LISP_FLOAT_TYPE
   CHECK_NUMBER (num, 0);