1 files changed, 44 insertions, 0 deletions
diff --git a/dev/examples/opt/opt.cc b/dev/examples/opt/opt.cc
new file mode 100644
index 0000000..a914d8d
--- /dev/null
+++ b/dev/examples/opt/opt.cc
@@ -0,0 +1,44 @@
+/* 
+  string checksum example
+  written by Amlal El Mahrouss.
+  licensed under the MIT license
+ */
+
+#include <lib/logic/opt.hpp>
+#include <lib/io/print.hpp>
+#include <string>
+
+static const char do_hash(const std::string& in)
+{
+	int hash = 0;
+
+	for (long index = 0; index < in.size(); ++index)
+	{
+		hash += in[index];
+	}
+
+	return hash;
+}
+
+static auto do_some(const std::string recv_data, const std::string check_data)
+{
+	const int hash_to_check = do_hash(check_data); /* here we assume this should match opt_hash */
+	const int opt_hash		= do_hash(recv_data);  /* we assume that the hash is correct */
+
+	auto opt = snu::opt::opt(snu::opt::eval_eq(hash_to_check, opt_hash)); /* do the compute */
+	return opt;
+}
+
+/* finally test it */
+int main(int argc, char** argv)
+{
+	// ... let's assume we fetch data from network...
+
+	snu::println("Testing data...");
+
+	auto opt = do_some("Ohio", "Ohio");
+	opt.expect("Checksum failed, Ohio isn't Ohio!");
+
+
+	return 0;
+}