examples, alternative namespaces : Part2 of put alternative namespace definitions in local headers.

examples, clcpp_response,alternative_namespaces::clcpp_response : use fmt functions for showing precision of quantities examples, alternative namespaces : combined the alternative namespace quantity typedefs in header files. examples, alternative namespaces : add simple timer example
2020-03-21 18:23:05 +01:00
parent c886590b03
commit 6b7e5893d2
13 changed files with 283 additions and 182 deletions
@@ -0,0 +1,64 @@
+#pragma once
+
+/*
+ Copyright (c) 2003-2020 Andy Little.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see http://www.gnu.org/licenses./
+ */
+
+#include "./time.h"
+
+#include <ctime>
+
+namespace units{ namespace experimental{
+ 
+    class timer{
+        
+    public:
+        timer(): running(true)
+        {
+            start_time = std::clock();
+        }
+
+        void restart() 
+        {
+            running = true;
+            start_time = std::clock();
+        }
+
+        void stop() 
+        {
+            if (running){
+                stop_time = std::clock();
+                running = false;
+            }
+        }
+        
+        q_time::ms<> operator ()()const
+        {
+            std::clock_t const wanted = running ? std::clock() : stop_time;
+            static constexpr auto divider = 1000.0 / CLOCKS_PER_SEC;
+           
+            return q_time::ms<>( 
+                difftime(wanted , start_time) 
+            ) * divider;
+        }
+        bool is_running() const {return running;}
+        bool is_stopped() const {return !running;}
+    private:
+        bool running;
+        std::clock_t start_time,stop_time;
+    };
+
+} }//units::experimental