rename string::date_time() to string::current_time() and improved its…

… implementation
LiangliangNan · Oct 24, 2024 · a0aebb3 · a0aebb3
1 parent 4016420
commit a0aebb3
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Showing 3 changed files with 17 additions and 19 deletions.
diff --git a/easy3d/util/string.cpp b/easy3d/util/string.cpp
@@ -15,6 +15,7 @@
 #include <iomanip>
 #include <cmath>
 #include <codecvt>
+#include <chrono>
 
 
 namespace easy3d {
@@ -197,26 +198,23 @@ namespace easy3d {
         }
 
 
-        // format example: "Fri Jan 09 11:39:32 2015"
-        std::string date_time() {
+        std::string current_time() {
+#if 0
+            // The following code will result in the format: "Fri Jan 09 11:39:32 2015"
             time_t now = ::time(nullptr); /* get current time; same as: time(&now)  */
             struct tm *timeinfo = localtime(&now);
             std::string tstr = asctime(timeinfo);
-
-            //return tstr;
             return tstr.substr(0, tstr.length() - 1); // discard the terminating null-character
-
-            // use strftime() to define your own stamp format
-            //size_t strftime(char *strDest, size_t maxsize, const char *format, const struct tm *timeptr);
-
-            // get a precise timestamp as a string
-//            const auto now = std::chrono::system_clock::now();
-//            const auto now_as_time_t = std::chrono::system_clock::to_time_t(now);
-//            const auto now_in_ms = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()) % 1000;
-//            std::stringstream time_stream;
-//            time_stream << std::put_time(std::localtime(&now_as_time_t), "%Y%m%d %T")
-//                        << '.' << std::setfill('0') << std::setw(3) << now_in_ms.count();
-//            time_str_ = time_stream.str();
+#endif
+            // get a precise timestamp as a string in the format: "2024-10-24-17-41-16-753"
+            const auto now = std::chrono::system_clock::now();
+            const auto now_as_time_t = std::chrono::system_clock::to_time_t(now);
+            const auto now_in_ms = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()) % 1000;
+            std::stringstream time_stream;
+            time_stream << std::put_time(std::localtime(&now_as_time_t), "%Y-%m-%d-%H-%M-%S") // format like "2024-10-24-17-41-16-753"
+                        << '-' << std::setfill('0') << std::setw(3)
+                        << now_in_ms.count(); // add milliseconds
+            return time_stream.str();
         }
 
 

diff --git a/easy3d/util/string.h b/easy3d/util/string.h
@@ -152,9 +152,9 @@ namespace easy3d {
         void appendf(std::string &dst, const char *format, ...);
 
         /**
-         * @brief Gets the time string, e.g., "Fri Jan 09 11:39:32 2015"
+         * @brief Gets the current time as a string, e.g., "2024-10-24-17-41-16-753"
          */
-        std::string date_time();
+        std::string current_time();
 
         /**
          * @brief Converts \p time (in millisecond) into a string with the most suitable/readable unit.

diff --git a/easy3d/util/version.h b/easy3d/util/version.h
@@ -59,7 +59,7 @@ namespace easy3d {
 #define EASY3D_VERSION_NR 1020504
 
 /// Easy3D release date, in the format YYYYMMDD.
-#define EASY3D_RELEASE_DATE 20240927
+#define EASY3D_RELEASE_DATE 20241008
 
 
 #endif  // EASY3D_UTIL_VERSION_H