Avoid compiler warning.

[bison.git] / data / location.cc

diff --git a/data/location.cc b/data/location.cc
index a6e5e57f02072c06b6a34bdfe6b9bc433bdb10be..3ad89b39d74311481bed884f60cbb227dc9b0b58 100644 (file)
--- a/data/location.cc
+++ b/data/location.cc
@@ -1,6 +1,6 @@
 # C++ skeleton for Bison
 
-# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
+# Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation,
 # Inc.
 
 # This program is free software: you can redistribute it and/or modify
@@ -16,16 +16,18 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+m4_pushdef([b4_copyright_years],
+           [2002, 2003, 2004, 2005, 2006, 2007, 2008])
+
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
 m4_divert_push(0)dnl
-@output(b4_dir_prefix[]position.hh@)
-b4_copyright([Positions for Bison parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])[
+@output(b4_dir_prefix[]position.hh@)@
+b4_copyright([Positions for Bison parsers in C++])[
 
 /**
  ** \file position.hh
- ** Define the ]b4_percent_define_get([[namespace]])[::position class.
+ ** Define the ]b4_namespace_ref[::position class.
  */
 
 #ifndef BISON_POSITION_HH
@@ -35,35 +37,38 @@ b4_copyright([Positions for Bison parsers in C++],
 # include <string>
 # include <algorithm>
 
-namespace ]b4_percent_define_get([[namespace]])[
-{
+]b4_namespace_open[
   /// Abstract a position.
   class position
   {
   public:
-]m4_ifdef([b4_location_constructors], [
+]m4_ifdef([b4_location_constructors], [[
     /// Construct a position.
-    position ()
-      : filename (0), line (]b4_location_initial_line[), column (]b4_location_initial_column[)
+    explicit position (]b4_percent_define_get([[filename_type]])[* f = 0,
+                       unsigned int l = ]b4_location_initial_line[u,
+                       unsigned int c = ]b4_location_initial_column[u)
+      : filename (f)
+      , line (l)
+      , column (c)
     {
     }
 
-])[
+]])[
     /// Initialization.
     inline void initialize (]b4_percent_define_get([[filename_type]])[* fn)
     {
       filename = fn;
-      line = ]b4_location_initial_line[;
-      column = ]b4_location_initial_column[;
+      line = ]b4_location_initial_line[u;
+      column = ]b4_location_initial_column[u;
     }
 
     /** \name Line and Column related manipulators
      ** \{ */
-  public:
     /// (line related) Advance to the COUNT next lines.
+    /// Set current column to initial value.
     inline void lines (int count = 1)
     {
-      column = ]b4_location_initial_column[;
+      column = ]b4_location_initial_column[u;
       line += count;
     }
 
@@ -74,7 +79,6 @@ namespace ]b4_percent_define_get([[namespace]])[
     }
     /** \} */
 
-  public:
     /// File name to which this position refers.
     ]b4_percent_define_get([[filename_type]])[* filename;
     /// Current line number.
@@ -142,15 +146,14 @@ namespace ]b4_percent_define_get([[namespace]])[
     return ostr << pos.line << '.' << pos.column;
   }
 
-}
+]b4_namespace_close[
 #endif // not BISON_POSITION_HH]
-@output(b4_dir_prefix[]location.hh@)
-b4_copyright([Locations for Bison parsers in C++],
-  [2002, 2003, 2004, 2005, 2006])[
+@output(b4_dir_prefix[]location.hh@)@
+b4_copyright([Locations for Bison parsers in C++])[
 
 /**
  ** \file location.hh
- ** Define the ]b4_percent_define_get([[namespace]])[::location class.
+ ** Define the ]b4_namespace_ref[::location class.
  */
 
 #ifndef BISON_LOCATION_HH
@@ -160,17 +163,33 @@ b4_copyright([Locations for Bison parsers in C++],
 # include <string>
 # include "position.hh"
 
-namespace ]b4_percent_define_get([[namespace]])[
-{
+]b4_namespace_open[
 
   /// Abstract a location.
   class location
   {
   public:
 ]m4_ifdef([b4_location_constructors], [
-    /// Construct a location.
-    location ()
-      : begin (), end ()
+    /// Construct a location from \a b to \a e.
+    location (const position& b, const position& e)
+      : begin (b)
+      , end (e)
+    {
+    }
+
+    /// Construct a 0-width location in \a p.
+    explicit location (const position& p = position ())
+      : begin (p)
+      , end (p)
+    {
+    }
+
+    /// Construct a 0-width location in \a f, \a l, \a c.
+    explicit location (]b4_percent_define_get([[filename_type]])[* f,
+                       unsigned int l = ]b4_location_initial_line[u,
+                       unsigned int c = ]b4_location_initial_column[u)
+      : begin (f, l, c)
+      , end (f, l, c)
     {
     }
 
@@ -270,8 +289,9 @@ namespace ]b4_percent_define_get([[namespace]])[
     return ostr;
   }
 
-}
+]b4_namespace_close[
 
 #endif // not BISON_LOCATION_HH]
 m4_divert_pop(0)
+m4_popdef([b4_copyright_years])dnl
 m4_changecom([#])