#219-modify copyright dates

Done.

Author: schmouk

cpp-strings-tests/cpp-strings-tests.cpp

@@ -1,3 +1,25 @@
+/**
+	Library cppstrings
+	"What if c++ strings where as easy to use as Python strings?"
+	Unit tests part of the library.
+
+	Copyright (C) 2025 Philippe Schmouker
+	contact - ph (dot) schmouker (at) gmail (dot) com
+
+	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 <https://www.gnu.org/licenses/>.
+*/
+
 #include "CppUnitTest.h"
 
 using namespace Microsoft::VisualStudio::CppUnitTestFramework;

cpp-strings/cppstrings.cpp

@@ -2,7 +2,7 @@
     Library cppstrings
     "What if c++ strings where as easy to use as Python strings?"
  
-    Copyright (C) 2023 Philippe Schmouker
+    Copyright (C) 2023-2025 Philippe Schmouker
     contact - ph (dot) schmouker (at) gmail (dot) com
 
     This program is free software: you can redistribute it and/or modify