[glibmm] gmmproc: Use nullptr instead of 0, NULL, zero in some comments

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 53a70ee037ac16c4d450049ce4217cf6af175933
Author: Kjell Ahlstedt <kjell ahlstedt bredband net>
Date:   Sun Nov 22 19:21:03 2015 +0100

    gmmproc: Use nullptr instead of 0,NULL,zero in some comments
    
    * tools/pm/DocsParser.pm: Replace NULL by nullptr, when C comments are
    converted to C++ comments. In many cases "an empty string" would be a better
    replacement text, but it's difficult to automatically decide when "nullptr"
    is not correct.
    * tools/pm/Output.pm: Use nullptr where appropriate in comments.

 tools/pm/DocsParser.pm |    2 +-
 tools/pm/Output.pm     |    6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/tools/pm/DocsParser.pm b/tools/pm/DocsParser.pm
index 8dae9c1..8743171 100644
--- a/tools/pm/DocsParser.pm
+++ b/tools/pm/DocsParser.pm
@@ -649,7 +649,7 @@ sub convert_tags_to_doxygen($)
 
     s"\%?\bFALSE\b"<tt>false</tt>"g;
     s"\%?\bTRUE\b"<tt>true</tt>"g;
-    s"\%?\bNULL\b"<tt>0</tt>"g;
+    s"\%?\bNULL\b"<tt>nullptr</tt>"g;
 
     s"#?\bgboolean\b"<tt>bool</tt>"g;
     s"#?\bg(int|short|long)\b"<tt>$1</tt>"g;
diff --git a/tools/pm/Output.pm b/tools/pm/Output.pm
index bfb6f96..ef18385 100644
--- a/tools/pm/Output.pm
+++ b/tools/pm/Output.pm
@@ -1203,7 +1203,7 @@ sub convert_args_cpp_to_c($$$$$)
       # will be passed by C reference (&name).
       $cOutputParamType =~ s/\*$//;
 
-      # Only initialize pointers to zero.  Otherwise, use the default
+      # Only initialize pointers to nullptr.  Otherwise, use the default
       # constructor of the type.
       my $initialization = "";
       if($cOutputParamType =~ /\*$/)
@@ -1284,7 +1284,7 @@ sub convert_args_cpp_to_c($$$$$)
   # Append the final slot copy parameter to the C function if the method
   # has a slot.  The m4 macros assume that that parameter name is
   # "slot_copy".  The m4 macros will either copy the slot to the
-  # "slot_copy variable or set it to the address of the slot itself if
+  # "slot_copy" variable or set it to the address of the slot itself if
   # the slot should not be copied.
   if ($$objCppfunc{slot_name})
   {
@@ -1525,7 +1525,7 @@ sub get_ctor_properties($$$$$$)
     if(!($possible_arg_list =~ /\b$cpp_param_index\b/))
     {
       # If the C++ index is not found in the list of desired parameters, pass
-      # NULL to the C func unless the param is not optional.
+      # nullptr to the C func unless the param is not optional.
       if ($$cpp_param_flags[$cpp_param_index] & FLAG_PARAM_OPTIONAL)
       {
         push(@result, "nullptr");