Fix crash when no indepdendent variable in NPAR is given.

[pspp] / src / language / stats / npar.c

diff --git a/src/language/stats/npar.c b/src/language/stats/npar.c
index d89eb0b876d63889f9a796b81b2a34f8daac3e29..22d95c025a5beac60f24ccb48cf17bf8a128f28b 100644 (file)
--- a/src/language/stats/npar.c
+++ b/src/language/stats/npar.c
@@ -1191,6 +1191,8 @@ parse_n_sample_related_test (struct lexer *lexer,
     return false;
 
   nst->indep_var = parse_variable_const (lexer, dict);
+  if (!nst->indep_var)
+    return false;
 
   if ( ! lex_force_match (lexer, T_LPAREN))
     return false;