From 115e8dc4c5042d805ce929530bb10b05d6fbf250 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Mon, 20 Mar 2023 13:27:25 +0300
Subject: Add support for std::multimap

---
 cli-examples/features/driver.cxx  | 25 ++++++++++++++++++++-----
 cli-examples/features/options.cli |  7 ++++---
 2 files changed, 24 insertions(+), 8 deletions(-)

(limited to 'cli-examples/features')

diff --git a/cli-examples/features/driver.cxx b/cli-examples/features/driver.cxx
index a6299b9..fc364a0 100644
--- a/cli-examples/features/driver.cxx
+++ b/cli-examples/features/driver.cxx
@@ -2,6 +2,7 @@
 // author    : Boris Kolpackov <boris@codesynthesis.com>
 // license   : MIT; see accompanying LICENSE file
 
+#include <utility>   // pair
 #include <iostream>
 #include <iterator>
 #include <algorithm>
@@ -45,13 +46,27 @@ main (int argc, char* argv[])
 
     // --map | -m
     //
-    typedef map<std::string, bool> str_map;
-    const str_map& m = o.map ();
-    str_map::const_iterator i (m.find ("a"));
+    {
+      typedef map<string, bool> str_map;
+      const str_map& m = o.map ();
+      str_map::const_iterator i (m.find ("a"));
 
-    if (i != m.end ())
-      cerr << "value for the 'a' key: " << i->second << endl;
+      if (i != m.end ())
+        cerr << "value for the 'a' map key: " << i->second << endl;
+    }
 
+    // --multimap
+    //
+    {
+      typedef multimap<string, int> str_multimap;
+      const str_multimap& m = o.multimap ();
+
+      pair<str_multimap::const_iterator, str_multimap::const_iterator> r (
+        m.equal_range ("a"));
+
+      for (str_multimap::const_iterator i (r.first); i != r.second; ++i)
+        cerr << "value for the 'a' multimap key: " << i->second << endl;
+    }
   }
   catch (const cli::exception& e)
   {
diff --git a/cli-examples/features/options.cli b/cli-examples/features/options.cli
index 4065830..d1e4b0c 100644
--- a/cli-examples/features/options.cli
+++ b/cli-examples/features/options.cli
@@ -30,10 +30,11 @@ namespace features
     std::vector<int> --vector | -v;
     std::set<int> --set | -s;
 
-    // We can also use maps. In this case the option value is expected to have
-    // two parts: the key and the value, separated by '='. For example: -m a=1
-    // -m =true -m c= -m d (same as -m d=).
+    // We can also use maps and multimaps. In this case the option value is
+    // expected to have two parts: the key and the value, separated by '='.
+    // For example: -m a=1 -m =true -m c= -m d (same as -m d=).
     //
     std::map<std::string, bool> --map | -m;
+    std::multimap<std::string, int> --multimap;
   };
 }
-- 
cgit v1.1