X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fui%2Fgui%2Ft-test-options.c;h=116c543f9476b857726be6e099a7fb511412cbb9;hb=323d2a9c10a9ce5dccf02fe9bcc7aa4efb369229;hp=671eba0c32c18b0a19fded5b9a7281c0a519a8fa;hpb=b6493cbb201307a2a5d1ff840a8347d75548cb85;p=pspp

diff --git a/src/ui/gui/t-test-options.c b/src/ui/gui/t-test-options.c
index 671eba0c32..116c543f94 100644
--- a/src/ui/gui/t-test-options.c
+++ b/src/ui/gui/t-test-options.c
@@ -92,6 +92,8 @@ tt_options_dialog_create (GtkWindow *parent)
 void
 tt_options_dialog_destroy (struct tt_options_dialog *tto)
 {
+  if (tto == NULL)
+    return;
   gtk_container_remove (GTK_CONTAINER (tto->box), tto->confidence);
   g_object_unref (tto->xml);
   g_free (tto);
@@ -127,14 +129,20 @@ tt_options_dialog_run (struct tt_options_dialog *tto)
 void
 tt_options_dialog_append_syntax (const struct tt_options_dialog *tto, GString *str)
 {
-  g_string_append (str, "\t/MISSING=");
+  struct string dss;
+  ds_init_empty (&dss);
 
-  if ( tto->excl == EXCL_ANALYSIS )
-    g_string_append (str, "ANALYSIS");
+  ds_put_cstr (&dss, "\t/MISSING=");
+
+  if (tto->excl == EXCL_ANALYSIS)
+    ds_put_cstr (&dss, "ANALYSIS");
   else
-    g_string_append (str, "LISTWISE");
+    ds_put_cstr (&dss, "LISTWISE");
+
+  ds_put_c_format (&dss, "\n\t/CRITERIA=CIN(%g)",
+		   tto->confidence_interval/100.0);
 
+  g_string_append (str, ds_cstr (&dss));
 
-  g_string_append_printf (str, "\n\t/CRITERIA=CIN(%g)",
-			  tto->confidence_interval/100.0);
+  ds_destroy (&dss);
 }