From 55f115d875bf70305ca43e93761395b4329a23a6 Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 27 Apr 2017 21:56:42 +0300
Subject: Add standard_version_constraint::satisfies()

---
 butl/standard-version     |  3 +++
 butl/standard-version.cxx | 20 ++++++++++++++++++++
 2 files changed, 23 insertions(+)

(limited to 'butl')

diff --git a/butl/standard-version b/butl/standard-version
index 0c7b9bc..59056ac 100644
--- a/butl/standard-version
+++ b/butl/standard-version
@@ -181,6 +181,9 @@ namespace butl
 
     bool
     empty () const noexcept {return !min_version && !max_version;}
+
+    bool
+    satisfies (const standard_version&) const noexcept;
   };
 
   inline bool
diff --git a/butl/standard-version.cxx b/butl/standard-version.cxx
index 16095c0..3e049e2 100644
--- a/butl/standard-version.cxx
+++ b/butl/standard-version.cxx
@@ -530,4 +530,24 @@ namespace butl
     return (min_open ? '(' : '[') + min_version->string () + ' ' +
       max_version->string () + (max_open ? ')' : ']');
   }
+
+  bool standard_version_constraint::
+  satisfies (const standard_version& v) const noexcept
+  {
+    bool s (true);
+
+    if (min_version)
+    {
+      int i (v.compare (*min_version));
+      s = min_open ? i > 0 : i >= 0;
+    }
+
+    if (s && max_version)
+    {
+      int i (v.compare (*max_version));
+      s = max_open ? i < 0 : i <= 0;
+    }
+
+    return s;
+  }
 }
-- 
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