bison files, swallow warnings

ChangeLog

@@ -1,3 +1,8 @@
+2011-08-13  Robert Larice
+ * src/frontend/parse-bison.y ,
+ * src/spicelib/parser/inpptree-parser.y :
+   bison files, swallow warnings
+
 2011-08-12  Robert Larice
  * src/spicelib/devices/adms/admst/ngspice.xml ,
  * src/spicelib/devices/adms/admst/ngspiceMakefile.am.xml :

src/frontend/parse-bison.y

@@ -101,6 +101,7 @@
 %initial-action      /* initialize yylval */
 {
     $$.num = 0.0;
+    yylloc.start = yylloc.stop = NULL;
 };
 
 %%

src/spicelib/parser/inpptree-parser.y

@@ -53,6 +53,11 @@
 %left   '^'      /* exponentiation */
 %left   NEG '!'  /* negation--unary minus, and boolean not */
 
+%initial-action      /* initialize yylval */
+{
+    $$.num = 0.0;
+};
+
 %%
 
 expression: