From c699d5715b2e768ef2f7742a1894742df982038b Mon Sep 17 00:00:00 2001
From: Alexander Karatarakis <alkarata@microsoft.com>
Date: Thu, 22 Sep 2016 23:27:46 -0700
Subject: Introduce vcpkg::Sets utility namespace

---
 toolsrc/include/vcpkg_Sets.h                    | 17 +++++++++++++++++
 toolsrc/vcpkgcommon/vcpkgcommon.vcxproj         |  1 +
 toolsrc/vcpkgcommon/vcpkgcommon.vcxproj.filters |  3 +++
 3 files changed, 21 insertions(+)
 create mode 100644 toolsrc/include/vcpkg_Sets.h

(limited to 'toolsrc')

diff --git a/toolsrc/include/vcpkg_Sets.h b/toolsrc/include/vcpkg_Sets.h
new file mode 100644
index 000000000..7b330f31c
--- /dev/null
+++ b/toolsrc/include/vcpkg_Sets.h
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "vcpkg_Checks.h"
+#include <unordered_set>
+
+namespace vcpkg { namespace Sets
+{
+    template <typename T, typename Container>
+    void remove_all(std::unordered_set<T>* input_set, Container remove_these)
+    {
+        Checks::check_throw(input_set != nullptr, "Input set cannot be null");
+        for (const T& r : remove_these)
+        {
+            input_set->erase(r);
+        }
+    }
+}}
diff --git a/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj b/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj
index 95cfd5764..e91cf2cf8 100644
--- a/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj
+++ b/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj
@@ -131,6 +131,7 @@
     <ClInclude Include="..\include\vcpkg_Checks.h" />
     <ClInclude Include="..\include\vcpkg_Files.h" />
     <ClInclude Include="..\include\vcpkg_Graphs.h" />
+    <ClInclude Include="..\include\vcpkg_Sets.h" />
     <ClInclude Include="..\include\vcpkg_Strings.h" />
     <ClInclude Include="..\include\vcpkg_System.h" />
   </ItemGroup>
diff --git a/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj.filters b/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj.filters
index a7e98c853..969cf58b4 100644
--- a/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj.filters
+++ b/toolsrc/vcpkgcommon/vcpkgcommon.vcxproj.filters
@@ -50,5 +50,8 @@
     <ClInclude Include="..\include\opt_bool.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\include\vcpkg_Sets.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
-- 
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