From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 20:24:20 +0200
Subject: Adding upstream version 14.2.21.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../example/options_description.cpp                | 86 ++++++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 src/boost/libs/program_options/example/options_description.cpp

(limited to 'src/boost/libs/program_options/example/options_description.cpp')

diff --git a/src/boost/libs/program_options/example/options_description.cpp b/src/boost/libs/program_options/example/options_description.cpp
new file mode 100644
index 00000000..e9ad2a67
--- /dev/null
+++ b/src/boost/libs/program_options/example/options_description.cpp
@@ -0,0 +1,86 @@
+// Copyright Vladimir Prus 2002-2004.
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/program_options.hpp>
+
+using namespace boost;
+namespace po = boost::program_options;
+
+#include <iostream>
+#include <algorithm>
+#include <iterator>
+using namespace std;
+
+
+// A helper function to simplify the main part.
+template<class T>
+ostream& operator<<(ostream& os, const vector<T>& v)
+{
+    copy(v.begin(), v.end(), ostream_iterator<T>(os, " "));
+    return os;
+}
+
+int main(int ac, char* av[])
+{
+    try {
+        int opt;
+        int portnum;
+        po::options_description desc("Allowed options");
+        desc.add_options()
+            ("help", "produce help message")
+            ("optimization", po::value<int>(&opt)->default_value(10),
+                  "optimization level")
+            ("verbose,v", po::value<int>()->implicit_value(1),
+                  "enable verbosity (optionally specify level)")
+            ("listen,l", po::value<int>(&portnum)->implicit_value(1001)
+                  ->default_value(0,"no"),
+                  "listen on a port.")
+            ("include-path,I", po::value< vector<string> >(),
+                  "include path")
+            ("input-file", po::value< vector<string> >(), "input file")
+        ;
+
+        po::positional_options_description p;
+        p.add("input-file", -1);
+
+        po::variables_map vm;
+        po::store(po::command_line_parser(ac, av).
+                  options(desc).positional(p).run(), vm);
+        po::notify(vm);
+
+        if (vm.count("help")) {
+            cout << "Usage: options_description [options]\n";
+            cout << desc;
+            return 0;
+        }
+
+        if (vm.count("include-path"))
+        {
+            cout << "Include paths are: "
+                 << vm["include-path"].as< vector<string> >() << "\n";
+        }
+
+        if (vm.count("input-file"))
+        {
+            cout << "Input files are: "
+                 << vm["input-file"].as< vector<string> >() << "\n";
+        }
+
+        if (vm.count("verbose")) {
+            cout << "Verbosity enabled.  Level is " << vm["verbose"].as<int>()
+                 << "\n";
+        }
+
+        cout << "Optimization level is " << opt << "\n";
+
+        cout << "Listen port is " << portnum << "\n";
+    }
+    catch(std::exception& e)
+    {
+        cout << e.what() << "\n";
+        return 1;
+    }
+    return 0;
+}
-- 
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