X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Fvalue-labels.c;h=16e649687cb577db05891b75f9ee913251d92f6e;hb=b7e33825d30a18360f24a18faf4b7d2e9efb8142;hp=91dd1702e1f69beaac15933077d8b27beb90c3e7;hpb=f500c9c2989d63465b9a93fe6f7e1600207681af;p=pspp

diff --git a/src/value-labels.c b/src/value-labels.c
index 91dd1702e1..16e649687c 100644
--- a/src/value-labels.c
+++ b/src/value-labels.c
@@ -21,9 +21,9 @@
 #include "value-labels.h"
 #include "error.h"
 #include <stdlib.h>
-#include <string.h>
 #include "alloc.h"
 #include "hash.h"
+#include "str.h"
 
 static hsh_compare_func compare_int_val_lab;
 static hsh_hash_func hash_int_val_lab;
@@ -500,7 +500,13 @@ value_to_string(const union value *val, const struct variable *var)
 {
   static char buf[100];
   char *s;
-  const struct val_labs *val_labs = var->val_labs;
+  const struct val_labs *val_labs ;
+  
+  if ( !val || ! var ) 
+    return 0;
+
+  val_labs = var->val_labs;
+
   
   s = val_labs_find (val_labs, *val);