chore: `option.hpp` improvements, new examples in `examples`.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

6 files changed, 61 insertions, 10 deletions

diff --git a/examples/hash_crc32_example/example.cc b/examples/hash_crc32_example/example.cc
index 258aedc..be6780f 100644
--- a/examples/hash_crc32_example/example.cc
+++ b/examples/hash_crc32_example/example.cc
@@ -1,6 +1,6 @@
 #include <ocl/crc_hash.hpp>
 #include <ocl/print.hpp>
-#include <ocl/smart_ptr.hpp>
+#include <ocl/option.hpp>
 
 int main(int argc, char** argv)
 {
diff --git a/examples/option_example/CMakeLists.txt b/examples/option_example/CMakeLists.txt
new file mode 100644
index 0000000..a77d4c5
--- /dev/null
+++ b/examples/option_example/CMakeLists.txt
@@ -0,0 +1,15 @@
+
+cmake_minimum_required(VERSION 3.15...3.31)
+
+project(
+  OptionExample
+  VERSION 1.0
+  LANGUAGES CXX)
+
+find_package(Boost REQUIRED COMPONENTS container)
+
+add_executable(OptionExample example.cc)
+
+set_property(TARGET OptionExample PROPERTY CXX_STANDARD 20)
+target_include_directories(OptionExample PUBLIC ../../include/)
+target_link_libraries(OptionExample PRIVATE Boost::container)
diff --git a/examples/option_example/example.cc b/examples/option_example/example.cc
new file mode 100644
index 0000000..7649438
--- /dev/null
+++ b/examples/option_example/example.cc
@@ -0,0 +1,11 @@
+#include <ocl/crc_hash.hpp>
+#include <ocl/print.hpp>
+#include <ocl/option.hpp>
+
+int main(int argc, char** argv)
+{
+    ocl::option opt{ocl::eval_eq(nullptr, nullptr)};
+    opt.expect("is incorrect");
+
+	return 0;
+}
diff --git a/examples/smart_ptr_example/CMakeLists.txt b/examples/smart_ptr_example/CMakeLists.txt
new file mode 100644
index 0000000..6584ad2
--- /dev/null
+++ b/examples/smart_ptr_example/CMakeLists.txt
@@ -0,0 +1,15 @@
+
+cmake_minimum_required(VERSION 3.15...3.31)
+
+project(
+  SmartPtrExample
+  VERSION 1.0
+  LANGUAGES CXX)
+
+find_package(Boost REQUIRED COMPONENTS container)
+
+add_executable(SmartPtrExample example.cc)
+
+set_property(TARGET SmartPtrExample PROPERTY CXX_STANDARD 20)
+target_include_directories(SmartPtrExample PUBLIC ../../include/)
+target_link_libraries(SmartPtrExample PRIVATE Boost::container)
diff --git a/examples/smart_ptr_example/example.cc b/examples/smart_ptr_example/example.cc
new file mode 100644
index 0000000..ef1a865
--- /dev/null
+++ b/examples/smart_ptr_example/example.cc
@@ -0,0 +1,10 @@
+#include <ocl/crc_hash.hpp>
+#include <ocl/print.hpp>
+#include <ocl/smart_ptr.hpp>
+
+int main(int argc, char** argv)
+{
+    ocl::shared_ptr<std::ostream> smart = ocl::delete_ptr(&std::cout);
+
+	return 0;
+}
diff --git a/include/ocl/option.hpp b/include/ocl/option.hpp
index c1bc5cc..d84e935 100644
--- a/include/ocl/option.hpp
+++ b/include/ocl/option.hpp
@@ -69,7 +69,8 @@ namespace ocl
 	{
 		struct int_eq_teller final
 		{
-			bool operator()(int a, int b)
+            template <class ObjFirst, class ObjLast>
+			bool operator()(ObjFirst a, ObjLast b)
 			{
 				return (a == b);
 			}
@@ -77,7 +78,8 @@ namespace ocl
 
 		struct int_greater_than_teller final
 		{
-			bool operator()(int a, int b)
+            template <class ObjFirst, class ObjLast>
+			bool operator()(ObjFirst a, ObjLast b)
 			{
 				return (a > b);
 			}
@@ -85,7 +87,8 @@ namespace ocl
 
 		struct int_less_than_teller final
 		{
-			bool operator()(int a, int b)
+            template <class ObjFirst, class ObjLast>
+			bool operator()(ObjFirst a, ObjLast b)
 			{
 				return (a < b);
 			}
@@ -95,22 +98,19 @@ namespace ocl
 	template <typename... Lst>
 	inline return_type eval_less_than(Lst&&... arg)
 	{
-		static detail::int_less_than_teller eq;
-		return eq(std::forward<Lst>(arg)...) ? return_type::okay : return_type::err;
+		return detail::int_less_than_teller{}(std::forward<Lst>(arg)...) ? return_type::okay : return_type::err;
 	}
 
 	template <typename... Lst>
 	inline return_type eval_eq(Lst&&... arg)
 	{
-		static detail::int_eq_teller less_than;
-		return less_than(std::forward<Lst>(arg)...) ? return_type::okay : return_type::err;
+		return detail::int_eq_teller{}(std::forward<Lst>(arg)...) ? return_type::okay : return_type::err;
 	}
 
 	template <typename... Lst>
 	inline return_type eval_greater_than(Lst&&... arg)
 	{
-		static detail::int_greater_than_teller greater_than;
-		return greater_than(std::forward<Lst>(arg)...) ? return_type::okay : return_type::err;
+		return detail::int_greater_than_teller{}(std::forward<Lst>(arg)...) ? return_type::okay : return_type::err;
 	}
 
 	inline return_type eval_true() noexcept