parsers: rename YY_NULL as YY_NULLPTR to avoid conflicts with Flex

[bison.git] / data / variant.hh

diff --git a/data/variant.hh b/data/variant.hh
index 7fa68464cde3933bad39928845232a5c26f67530..633c29abc4c0da229335b3072f9310397b7501e3 100644 (file)
--- a/data/variant.hh
+++ b/data/variant.hh
@@ -63,7 +63,7 @@ m4_define([b4_char_sizeof],
 [b4_symbol_if([$1], [has_type],
 [
 m4_map([      b4_symbol_tag_comment], [$@])dnl
-      char _b4_char_sizeof_dummy@{sizeof([b4_symbol([$1], [type])])@};
+      char _b4_char_sizeof_dummy@{sizeof(b4_symbol([$1], [type]))@};
 ])])
 
 
@@ -95,7 +95,7 @@ m4_define([b4_variant_define],
 
     /// Empty construction.
     variant ()]b4_parse_assert_if([
-      : yytname_ (YY_NULL)])[
+      : yytname_ (YY_NULLPTR)])[
     {}
 
     /// Construct and fill.
@@ -178,8 +178,7 @@ m4_define([b4_variant_define],
     template <typename T>
     void
     move (self_type& other)
-    {]b4_parse_assert_if([
-      YYASSERT (!yytname_);])[
+    {
       build<T> ();
       swap<T> (other);
       other.destroy<T> ();
@@ -199,7 +198,7 @@ m4_define([b4_variant_define],
     destroy ()
     {
       as<T> ().~T ();]b4_parse_assert_if([
-      yytname_ = YY_NULL;])[
+      yytname_ = YY_NULLPTR;])[
     }
 
   private:
@@ -248,12 +247,12 @@ m4_define([b4_variant_define],
 # ---------------------
 # Declare semantic_type.
 m4_define([b4_value_type_declare],
-[    /// An auxiliary type to compute the largest semantic type.
+[[    /// An auxiliary type to compute the largest semantic type.
     union union_type
     {]b4_type_foreach([b4_char_sizeof])[};
 
     /// Symbol semantic values.
-    typedef variant<sizeof(union_type)> semantic_type;dnl
+    typedef variant<sizeof(union_type)> semantic_type;][]dnl
 ])
 
 
@@ -321,7 +320,6 @@ b4_join(b4_symbol_if([$1], [has_type],
     return symbol_type (b4_join([token::b4_symbol([$1], [id])],
                                 b4_symbol_if([$1], [has_type], [v]),
                                 b4_locations_if([l])));
-
   }
 
 ])])])