From 92963bc943369de8f795981df31084d2a5a77fc7 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Thu, 25 May 2000 14:50:14 +0000
Subject: [PATCH] added missing wxDateSpan methods

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@7486 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/datetime.inl | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/include/wx/datetime.inl b/include/wx/datetime.inl
index 756e2fb693..65099bb35f 100644
--- a/include/wx/datetime.inl
+++ b/include/wx/datetime.inl
@@ -479,6 +479,18 @@ inline wxDateSpan& wxDateSpan::operator+=(const wxDateSpan& other)
     return *this;
 }
 
+inline wxDateSpan& wxDateSpan::Add(const wxDateSpan& other)
+{
+    return *this += other;
+}
+
+inline wxDateSpan wxDateSpan::Add(const wxDateSpan& other) const
+{
+    wxDateSpan ds(*this);
+    ds.Add(other);
+    return ds;
+}
+
 inline wxDateSpan& wxDateSpan::Multiply(int factor)
 {
     m_years *= factor;
@@ -491,7 +503,9 @@ inline wxDateSpan& wxDateSpan::Multiply(int factor)
 
 inline wxDateSpan wxDateSpan::Multiply(int factor) const
 {
-    return wxDateSpan(*this).Multiply(factor);
+    wxDateSpan ds(*this);
+    ds.Multiply(factor);
+    return ds;
 }
 
 inline wxDateSpan wxDateSpan::Negate() const
@@ -509,6 +523,23 @@ inline wxDateSpan& wxDateSpan::Neg()
     return *this;
 }
 
+inline wxDateSpan& wxDateSpan::operator-=(const wxDateSpan& other)
+{
+    return *this += other.Negate();
+}
+
+inline wxDateSpan& wxDateSpan::Subtract(const wxDateSpan& other)
+{
+    return *this -= other;
+}
+
+inline wxDateSpan wxDateSpan::Subtract(const wxDateSpan& other) const
+{
+    wxDateSpan ds(*this);
+    ds.Subtract(other);
+    return ds;
+}
+
 #undef MILLISECONDS_PER_DAY
 
 #undef MODIFY_AND_RETURN