[PATCH 3/8] c++: fewer #includes in the headers.

[Akim Demaille]

* data/lalr1.cc: Define YY_NULL in the *.cc file, it is not needed
in the header.
* data/location.cc: iosfwd suffices.
---
 data/lalr1.cc    | 14 +++++++-------
 data/location.cc |  4 ++--
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/data/lalr1.cc b/data/lalr1.cc
index afff0a5..5e83ee3 100644
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -55,8 +55,6 @@ b4_copyright([Skeleton interface for Bison LALR(1) parsers in 
C++],
 ]b4_percent_define_ifdef([[location_type]], [],
                          [[#include "location.hh"]])[
 
-]b4_null_define[
-
 ]b4_YYDEBUG_define[
 
 ]b4_namespace_open[
@@ -277,16 +275,18 @@ m4_if(b4_prefix, [yy], [],
 #define yylex   b4_prefix[]lex])[
 
 /* First part of user declarations.  */
-]b4_user_pre_prologue
+]b4_user_pre_prologue[
 
-b4_defines_if([[
+]b4_defines_if([[
 #include "@basename(]b4_spec_defines_file[@)"]])[
 
 /* User implementation prologue.  */
-]b4_user_post_prologue
-b4_percent_code_get[]dnl
+]b4_user_post_prologue[
+]b4_percent_code_get[
+
+]b4_null_define[
 
-[#ifndef YY_
+#ifndef YY_
 # if defined YYENABLE_NLS && YYENABLE_NLS
 #  if ENABLE_NLS
 #   include <libintl.h> /* FIXME: INFRINGES ON USER NAME SPACE */
diff --git a/data/location.cc b/data/location.cc
index f45f634..b7383d6 100644
--- a/data/location.cc
+++ b/data/location.cc
@@ -29,9 +29,9 @@ b4_copyright([Positions for Bison parsers in C++],
 
 ]b4_cpp_guard_open([b4_dir_prefix[]position.hh])[
 
-# include <iostream>
+# include <algorithm> // std::max
+# include <iosfwd>
 # include <string>
-# include <algorithm>
 
 ]b4_null_define[
 
-- 
1.7.11.1