Playing around further with CLI11

src/main.cpp

@@ -1,18 +1,34 @@
 #include <iostream>
 #include "CLI11.hpp"
 
-int main([[maybe_unused]] int argc,[[maybe_unused]] char **argv) {
-    CLI::App app{"Test program thus far"};
 
+int main(int argc, char **argv) {
+    // Set up a command-line app with a description
+    CLI::App app{"This app demonstrates explicit usage printing with CLI11"};
+
+    // Add a flag
     bool test{false};
-    app.add_flag("-f", test, "Test flag");
+    app.add_flag("-f,--flag", test, "A test flag");
+
+    // Add an option
+    int value{0};
+    app.add_option("-v,--value", value, "An integer value to process")
+        ->default_val("0"); // Add a default value
+
+    // Add a positional argument
+    std::string input;
+    app.add_option("usage", input, "THIS IS A TEST")->group("Usage");
 
     try {
         app.parse(argc, argv);
-    } catch(const CLI::ParseError &e) {
+    } catch (const CLI::ParseError &e) {
         return app.exit(e);
     }
 
-    if (test)
+    // Print the parsed arguments for demonstration
-        std::cout << "Hello world";
+    std::cout << "Flag value: " << (test ? "true" : "false") << "\n";
+    std::cout << "Integer value: " << value << "\n";
+    std::cout << "Input file: " << input << "\n";
+
+    return 0;
 }