From f3d803addfb3d84d828786d2e6b0b8a34f2fc494 Mon Sep 17 00:00:00 2001
From: Alexander Karatarakis <alkarata@microsoft.com>
Date: Mon, 28 Aug 2017 18:54:48 -0700
Subject: [PATCH] Introduce Strings::is_empty()

---
 toolsrc/include/vcpkg_Strings.h | 3 +++
 toolsrc/src/vcpkg_Strings.cpp   | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/toolsrc/include/vcpkg_Strings.h b/toolsrc/include/vcpkg_Strings.h
index 5dd42023294..5af7c6f7c46 100644
--- a/toolsrc/include/vcpkg_Strings.h
+++ b/toolsrc/include/vcpkg_Strings.h
@@ -39,6 +39,9 @@ namespace vcpkg::Strings
     static constexpr const CStringView EMPTY = "";
     static constexpr const CWStringView WEMPTY = L"";
 
+    bool is_empty(const CStringView s);
+    bool is_empty(const CWStringView s);
+
     template<class... Args>
     std::string format(const char* fmtstr, const Args&... args)
     {
diff --git a/toolsrc/src/vcpkg_Strings.cpp b/toolsrc/src/vcpkg_Strings.cpp
index 0c1c1f9f9ce..b5ea338def0 100644
--- a/toolsrc/src/vcpkg_Strings.cpp
+++ b/toolsrc/src/vcpkg_Strings.cpp
@@ -71,6 +71,9 @@ namespace vcpkg::Strings::details
 
 namespace vcpkg::Strings
 {
+    bool is_empty(const CStringView s) { return s == EMPTY; }
+    bool is_empty(const CWStringView s) { return s == WEMPTY; }
+
     std::wstring to_utf16(const CStringView s)
     {
         std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>, wchar_t> conversion;