Use nested namespace

It's a mechanical change to modernize the code base

include/server/api/base_parameters_grammar.hpp

@@ -14,11 +14,7 @@
 #include <limits>
 #include <string>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 namespace
@@ -235,8 +231,6 @@ struct BaseParametersGrammar : boost::spirit::qi::grammar<Iterator, Signature>
     qi::symbols<char, engine::Approach> approach_type;
     qi::symbols<char, engine::api::BaseParameters::SnappingType> snapping_type;
 };
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/match_parameter_grammar.hpp

@@ -7,11 +7,7 @@
 #include <boost/spirit/include/phoenix.hpp>
 #include <boost/spirit/include/qi.hpp>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 namespace
@@ -62,8 +58,6 @@ struct MatchParametersGrammar final : public RouteParametersGrammar<Iterator, Si
 
     qi::symbols<char, engine::api::MatchParameters::GapsType> gaps_type;
 };
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/nearest_parameter_grammar.hpp

@@ -7,11 +7,7 @@
 #include <boost/spirit/include/phoenix.hpp>
 #include <boost/spirit/include/qi.hpp>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 namespace
@@ -40,8 +36,6 @@ struct NearestParametersGrammar final : public BaseParametersGrammar<Iterator, S
     qi::rule<Iterator, Signature> root_rule;
     qi::rule<Iterator, Signature> nearest_rule;
 };
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/parameters_parser.hpp

@@ -8,11 +8,7 @@
 
 #include <type_traits>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 // Note: this file provides only the interface for the generic parseParameters function.
@@ -43,8 +39,6 @@ boost::optional<ParameterT> parseParameters(std::string options_string)
     return parseParameters<ParameterT>(first, last);
 }
 
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/parsed_url.hpp

@@ -6,11 +6,7 @@
 #include <string>
 #include <vector>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 struct ParsedURL final
@@ -22,8 +18,6 @@ struct ParsedURL final
     std::size_t prefix_length;
 };
 
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/route_parameters_grammar.hpp

@@ -7,11 +7,7 @@
 #include <boost/spirit/include/phoenix.hpp>
 #include <boost/spirit/include/qi.hpp>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 namespace
@@ -113,8 +109,6 @@ struct RouteParametersGrammar : public BaseParametersGrammar<Iterator, Signature
     qi::symbols<char, engine::api::RouteParameters::OverviewType> overview_type;
     qi::symbols<char, engine::api::RouteParameters::AnnotationsType> annotations_type;
 };
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/table_parameter_grammar.hpp

@@ -7,11 +7,7 @@
 #include <boost/spirit/include/phoenix.hpp>
 #include <boost/spirit/include/qi.hpp>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 namespace
@@ -106,8 +102,6 @@ struct TableParametersGrammar : public BaseParametersGrammar<Iterator, Signature
         fallback_coordinate_type;
     qi::real_parser<double, json_policy> double_;
 };
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/tile_parameter_grammar.hpp

@@ -11,11 +11,7 @@
 
 #include <string>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 namespace
@@ -40,8 +36,6 @@ struct TileParametersGrammar final : boost::spirit::qi::grammar<Iterator, Signat
   private:
     qi::rule<Iterator, Signature> root_rule;
 };
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/trip_parameter_grammar.hpp

@@ -7,11 +7,7 @@
 #include <boost/spirit/include/phoenix.hpp>
 #include <boost/spirit/include/qi.hpp>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 namespace
@@ -60,8 +56,6 @@ struct TripParametersGrammar final : public RouteParametersGrammar<Iterator, Sig
     qi::symbols<char, engine::api::TripParameters::SourceType> source_type;
     qi::symbols<char, engine::api::TripParameters::DestinationType> destination_type;
 };
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif

include/server/api/url_parser.hpp

@@ -7,11 +7,7 @@
 
 #include <string>
 
-namespace osrm
-{
-namespace server
-{
-namespace api
+namespace osrm::server::api
 {
 
 // Starts parsing and iter and modifies it until iter == end or parsing failed
@@ -22,8 +18,6 @@ inline boost::optional<ParsedURL> parseURL(std::string url_string)
     auto iter = url_string.begin();
     return parseURL(iter, url_string.end());
 }
-} // namespace api
-} // namespace server
 } // namespace osrm
 
 #endif