Fixed some more warnings

src/libslic3r/CustomGCode.cpp

@@ -62,7 +62,8 @@ std::vector<std::pair<double, unsigned int>> custom_tool_changes(const Info& cus
     for (const Item& custom_gcode : custom_gcode_per_print_z.gcodes)
         if (custom_gcode.gcode == ToolChangeCode) {
             // If extruder count in PrinterSettings was changed, use default (0) extruder for extruders, more than num_extruders
-            custom_tool_changes.emplace_back(custom_gcode.print_z, static_cast<unsigned int>(custom_gcode.extruder > num_extruders ? 1 : custom_gcode.extruder));
+            assert(custom_gcode.extruder >= 0);
+            custom_tool_changes.emplace_back(custom_gcode.print_z, static_cast<unsigned int>(size_t(custom_gcode.extruder) > num_extruders ? 1 : custom_gcode.extruder));
         }
     return custom_tool_changes;
 }

src/libslic3r/Format/3mf.cpp

@@ -1722,7 +1722,7 @@ namespace Slic3r {
         }
 
         // Added because of github #3435, currently not used by PrusaSlicer
-        int instances_count_id = get_attribute_value_int(attributes, num_attributes, INSTANCESCOUNT_ATTR);
+        // int instances_count_id = get_attribute_value_int(attributes, num_attributes, INSTANCESCOUNT_ATTR);
 
         m_objects_metadata.insert(IdToMetadataMap::value_type(object_id, ObjectMetadata()));
         m_curr_config.object_id = object_id;

src/libslic3r/GCode.cpp

@@ -1749,7 +1749,6 @@ std::vector<GCode::InstanceToPrint> GCode::sort_print_object_instances(
 		std::sort(sorted.begin(), sorted.end());
 
 		if (! sorted.empty()) {
-			const Print &print = *sorted.front().first->print();
 		    out.reserve(sorted.size());
 		    for (const PrintInstance *instance : *ordering) {
 		    	const PrintObject &print_object = *instance->print_object;
@@ -1795,13 +1794,14 @@ namespace ProcessLayer
 		    // we should add or not colorprint_change in respect to nozzle_diameter count instead of really used extruders count
 	        if (color_change || tool_change)
 	        {
+                assert(m600_extruder_before_layer >= 0);
 		        // Color Change or Tool Change as Color Change.
 	            // add tag for analyzer
 	            gcode += "; " + GCodeAnalyzer::Color_Change_Tag + ",T" + std::to_string(m600_extruder_before_layer) + "\n";
 	            // add tag for time estimator
 	            gcode += "; " + GCodeTimeEstimator::Color_Change_Tag + "\n";
 
-	            if (!single_extruder_printer && m600_extruder_before_layer >= 0 && first_extruder_id != m600_extruder_before_layer
+                if (!single_extruder_printer && m600_extruder_before_layer >= 0 && first_extruder_id != (unsigned)m600_extruder_before_layer
 	                // && !MMU1
 	                ) {
 	                //! FIXME_in_fw show message during print pause

src/libslic3r/GCode/Analyzer.cpp

@@ -644,7 +644,7 @@ bool GCodeAnalyzer::_process_tags(const GCodeReader::GCodeLine& line)
     if (pos != comment.npos)
     {
         pos = comment.find_last_of(",T");
-        int extruder = pos == comment.npos ? 0 : std::atoi(comment.substr(pos + 1, comment.npos).c_str());
+        unsigned extruder = pos == comment.npos ? 0 : std::stoi(comment.substr(pos + 1, comment.npos));
         _process_color_change_tag(extruder);
         return true;
     }
@@ -702,7 +702,7 @@ void GCodeAnalyzer::_process_height_tag(const std::string& comment, size_t pos)
     _set_height((float)::strtod(comment.substr(pos + Height_Tag.length()).c_str(), nullptr));
 }
 
-void GCodeAnalyzer::_process_color_change_tag(int extruder)
+void GCodeAnalyzer::_process_color_change_tag(unsigned extruder)
 {
     m_extruder_color[extruder] = m_extruders_count + m_state.cp_color_counter; // color_change position in list of color for preview
     m_state.cp_color_counter++;

src/libslic3r/GCode/Analyzer.hpp

@@ -220,7 +220,7 @@ private:
     void _process_height_tag(const std::string& comment, size_t pos);
 
     // Processes color change tag
-    void _process_color_change_tag(int extruder);
+    void _process_color_change_tag(unsigned extruder);
 
     // Processes pause print and custom gcode tag
     void _process_pause_print_or_custom_code_tag();

src/slic3r/GUI/GLCanvas3D.cpp

@@ -1298,7 +1298,7 @@ void GLCanvas3D::Labels::render(const std::vector<const ModelInstance*>& sorted_
 
     // updates print order strings
     if (sorted_instances.size() > 1) {
-        for (int i = 0; i < sorted_instances.size(); ++i) {
+        for (size_t i = 0; i < sorted_instances.size(); ++i) {
             size_t id = sorted_instances[i]->id().id;
             std::vector<Owner>::iterator it = std::find_if(owners.begin(), owners.end(), [id](const Owner& owner) {
                 return owner.model_instance_id == id;

src/slic3r/GUI/GUI_ObjectList.cpp

@@ -1543,7 +1543,7 @@ wxMenuItem* ObjectList::append_menu_item_settings(wxMenu* menu_)
     // If there are selected more then one instance but not all of them
     // don't add settings menu items
     const Selection& selection = scene_selection();
-    if (selection.is_multiple_full_instance() && !selection.is_single_full_object() || 
+    if ((selection.is_multiple_full_instance() && !selection.is_single_full_object()) ||
         selection.is_multiple_volume() || selection.is_mixed() ) // more than one volume(part) is selected on the scene
         return nullptr;
 

src/slic3r/GUI/Preset.cpp

@@ -1012,7 +1012,7 @@ const std::string& PresetCollection::get_preset_name_by_alias(const std::string&
 		it != m_map_alias_to_profile_name.end() && it->first == alias; ++ it)
 		if (auto it_preset = this->find_preset_internal(it->second);
 			it_preset != m_presets.end() && it_preset->name == it->second && 
-			it_preset->is_visible && (it_preset->is_compatible || (it_preset - m_presets.begin()) == m_idx_selected))
+            it_preset->is_visible && (it_preset->is_compatible || size_t(it_preset - m_presets.begin()) == m_idx_selected))
 	        return it_preset->name;
     return alias;
 }

src/slic3r/GUI/PresetBundle.cpp

@@ -1316,7 +1316,7 @@ size_t PresetBundle::load_configbundle(const std::string &path, unsigned int fla
 
             // Derive the profile logical name aka alias from the preset name if the alias was not stated explicitely.
             if (alias_name.empty()) {
-	            int end_pos = preset_name.find_first_of("@");
+                size_t end_pos = preset_name.find_first_of("@");
 	            if (end_pos != std::string::npos) {
 	                alias_name = preset_name.substr(0, end_pos);
 	                if (renamed_from.empty())

src/slic3r/Utils/FlashAir.cpp

@@ -182,8 +182,6 @@ std::string FlashAir::timestamp_str() const
 	auto t = std::time(nullptr);
 	auto tm = *std::localtime(&t);
 
-	const char *name = get_name();
-
 	unsigned long fattime = ((tm.tm_year - 80) << 25) | 
 							((tm.tm_mon + 1) << 21) |
 							(tm.tm_mday << 16) |

src/slic3r/Utils/PresetUpdater.cpp

@@ -526,8 +526,8 @@ Updates PresetUpdater::priv::get_config_updates(const Semver &old_slic3r_version
 					existing_idx.load(bundle_path_idx);
 					// Find a recommended config bundle version for the slic3r version last executed. This makes sure that a config bundle update will not be missed
 					// when upgrading an application. On the other side, the user will be bugged every time he will switch between slic3r versions.
-					const auto existing_recommended = existing_idx.recommended(old_slic3r_version);
+                    /*const auto existing_recommended = existing_idx.recommended(old_slic3r_version);
-					/*if (existing_recommended != existing_idx.end() && recommended->config_version == existing_recommended->config_version) {
+                    if (existing_recommended != existing_idx.end() && recommended->config_version == existing_recommended->config_version) {
 						// The user has already seen (and presumably rejected) this update
 						BOOST_LOG_TRIVIAL(info) << boost::format("Downloaded index for `%1%` is the same as installed one, not offering an update.") % idx.vendor();
 						continue;