Take argv as const; refs #3909

[SVN r66959]

Author: mclow

include/boost/program_options/detail/parsers.hpp

@@ -36,11 +36,11 @@ namespace boost { namespace program_options {
 
     template<class charT>
     basic_command_line_parser<charT>::
-    basic_command_line_parser(int argc, charT* argv[])
+    basic_command_line_parser(int argc, const charT* const argv[])
     : detail::cmdline(
         // Explicit template arguments are required by gcc 3.3.1 
         // (at least mingw version), and do no harm on other compilers.
-        to_internal(detail::make_vector<charT, charT**>(argv+1, argv+argc+!argc)))
+        to_internal(detail::make_vector<charT, const charT* const*>(argv+1, argv+argc+!argc)))
     {}
 
 
@@ -111,7 +111,7 @@ namespace boost { namespace program_options {
 
     template<class charT>
     basic_parsed_options<charT>
-    parse_command_line(int argc, charT* argv[],
+    parse_command_line(int argc, const charT* const argv[],
                        const options_description& desc,
                        int style,
                        function1<std::pair<std::string, std::string>, 

include/boost/program_options/parsers.hpp

@@ -100,7 +100,7 @@ namespace boost { namespace program_options {
         /** Creates a command line parser for the specified arguments
             list. The parameters should be the same as passed to 'main'.
         */
-        basic_command_line_parser(int argc, charT* argv[]);
+        basic_command_line_parser(int argc, const charT* const argv[]);
 
         /** Sets options descriptions to use. */
         basic_command_line_parser& options(const options_description& desc);
@@ -144,7 +144,7 @@ namespace boost { namespace program_options {
      */
     template<class charT>
     basic_parsed_options<charT>
-    parse_command_line(int argc, charT* argv[],
+    parse_command_line(int argc, const charT* const argv[],
                        const options_description&,
                        int style = 0,
                        function1<std::pair<std::string, std::string>,