Use lambdas if possible.

Fine tuning in CMake scripts

src/core/libs/CMakeLists.txt

@@ -62,8 +62,9 @@ endif()
 
 target_link_libraries(core_libs
     PUBLIC
-        Boost::headers
+        Gnuradio::blocks
         Gnuradio::runtime
+        Gnuradio::pmt
         core_libs_supl
         core_system_parameters
         pvt_libs
@@ -74,6 +75,12 @@ target_link_libraries(core_libs
         Pugixml::pugixml
 )
 
+if(USE_GENERIC_LAMBDAS AND NOT GNURADIO_USES_STD_POINTERS)
+    target_link_libraries(core_libs PUBLIC Boost::headers)
+else()
+    target_link_libraries(core_libs PRIVATE Boost::headers)
+endif()
+
 if(GNURADIO_USES_STD_POINTERS)
     target_compile_definitions(core_libs
         PUBLIC -DGNURADIO_USES_STD_POINTERS=1

src/core/receiver/CMakeLists.txt

@@ -136,7 +136,6 @@ endif()
 target_link_libraries(core_receiver
     PUBLIC
         core_libs
-        Gnuradio::runtime
     PRIVATE
         core_monitor
         signal_source_adapters
@@ -162,6 +161,21 @@ if(ENABLE_ARMA_NO_DEBUG)
     )
 endif()
 
+if(USE_GENERIC_LAMBDAS)
+    set(has_generic_lambdas HAS_GENERIC_LAMBDA=1)
+    set(no_has_generic_lambdas HAS_GENERIC_LAMBDA=0)
+    target_compile_definitions(core_receiver
+        PRIVATE
+            "$<$<COMPILE_FEATURES:cxx_generic_lambdas>:${has_generic_lambdas}>"
+            "$<$<NOT:$<COMPILE_FEATURES:cxx_generic_lambdas>>:${no_has_generic_lambdas}>"
+    )
+else()
+    target_compile_definitions(core_receiver
+        PRIVATE
+            -DHAS_GENERIC_LAMBDA=0
+    )
+endif()
+
 # Fix for Boost Asio < 1.70
 if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
     if((CMAKE_CXX_COMPILER_ID MATCHES "Clang") AND (Boost_VERSION_STRING VERSION_LESS 1.70.0))

src/core/receiver/tcp_cmd_interface.cc

@@ -48,13 +48,23 @@ TcpCmdInterface::TcpCmdInterface()
 
 void TcpCmdInterface::register_functions()
 {
-    functions["status"] = std::bind(&TcpCmdInterface::status, this, std::placeholders::_1);                      // NOLINT(modernize-avoid-bind)
+#if HAS_GENERIC_LAMBDA
-    functions["standby"] = std::bind(&TcpCmdInterface::standby, this, std::placeholders::_1);                    // NOLINT(modernize-avoid-bind)
+    functions["status"] = [&](auto &s) { return TcpCmdInterface::status(s); };
-    functions["reset"] = std::bind(&TcpCmdInterface::reset, this, std::placeholders::_1);                        // NOLINT(modernize-avoid-bind)
+    functions["standby"] = [&](auto &s) { return TcpCmdInterface::standby(s); };
-    functions["hotstart"] = std::bind(&TcpCmdInterface::hotstart, this, std::placeholders::_1);                  // NOLINT(modernize-avoid-bind)
+    functions["reset"] = [&](auto &s) { return TcpCmdInterface::reset(s); };
-    functions["warmstart"] = std::bind(&TcpCmdInterface::warmstart, this, std::placeholders::_1);                // NOLINT(modernize-avoid-bind)
+    functions["hotstart"] = [&](auto &s) { return TcpCmdInterface::hotstart(s); };
-    functions["coldstart"] = std::bind(&TcpCmdInterface::coldstart, this, std::placeholders::_1);                // NOLINT(modernize-avoid-bind)
+    functions["warmstart"] = [&](auto &s) { return TcpCmdInterface::warmstart(s); };
-    functions["set_ch_satellite"] = std::bind(&TcpCmdInterface::set_ch_satellite, this, std::placeholders::_1);  // NOLINT(modernize-avoid-bind)
+    functions["coldstart"] = [&](auto &s) { return TcpCmdInterface::coldstart(s); };
+    functions["set_ch_satellite"] = [&](auto &s) { return TcpCmdInterface::set_ch_satellite(s); };
+#else
+    functions["status"] = std::bind(&TcpCmdInterface::status, this, std::placeholders::_1);
+    functions["standby"] = std::bind(&TcpCmdInterface::standby, this, std::placeholders::_1);
+    functions["reset"] = std::bind(&TcpCmdInterface::reset, this, std::placeholders::_1);
+    functions["hotstart"] = std::bind(&TcpCmdInterface::hotstart, this, std::placeholders::_1);
+    functions["warmstart"] = std::bind(&TcpCmdInterface::warmstart, this, std::placeholders::_1);
+    functions["coldstart"] = std::bind(&TcpCmdInterface::coldstart, this, std::placeholders::_1);
+    functions["set_ch_satellite"] = std::bind(&TcpCmdInterface::set_ch_satellite, this, std::placeholders::_1);
+#endif
 }
 
 
@@ -64,7 +74,7 @@ void TcpCmdInterface::set_pvt(std::shared_ptr<PvtInterface> PVT_sptr)
 }
 
 
-time_t TcpCmdInterface::get_utc_time()
+time_t TcpCmdInterface::get_utc_time() const
 {
     return receiver_utc_time_;
 }

src/core/receiver/tcp_cmd_interface.h

@@ -45,7 +45,7 @@ public:
     /*!
      * \brief gets the UTC time parsed from the last TC command issued
      */
-    time_t get_utc_time();
+    time_t get_utc_time() const;
 
     /*!
      * \brief gets the Latitude, Longitude and Altitude vector from the last TC command issued