From d50564853f69136418a11124be27a69cd05cc723 Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Thu, 1 Jun 2017 05:09:07 +0300
Subject: um: fix compiler warnings

---
 um/wrappers/simple/src/device.cpp               | 4 +++-
 um/wrappers/special/nt_namespace/src/device.cpp | 6 ++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/um/wrappers/simple/src/device.cpp b/um/wrappers/simple/src/device.cpp
index 2523be6..d1a0d42 100644
--- a/um/wrappers/simple/src/device.cpp
+++ b/um/wrappers/simple/src/device.cpp
@@ -23,10 +23,12 @@ namespace simple
 
     unsigned int Device::exchange_ints(unsigned int src) const
     {
+        static_assert(sizeof(exchange_ints_ctl_code) == sizeof(service::Device::Code), "CTL_CODE() must produce DWORDs");
+
         unsigned int dest;
 
         send_control_code(
-            exchange_ints_ctl_code,
+            static_cast<service::Device::Code>(exchange_ints_ctl_code),
             &src,
             sizeof(src),
             &dest,
diff --git a/um/wrappers/special/nt_namespace/src/device.cpp b/um/wrappers/special/nt_namespace/src/device.cpp
index 1697e45..4f9021b 100644
--- a/um/wrappers/special/nt_namespace/src/device.cpp
+++ b/um/wrappers/special/nt_namespace/src/device.cpp
@@ -29,15 +29,17 @@ namespace nt_namespace
         const auto in_buf = src.c_str();
         const auto in_buf_size = (src.size() + 1) * sizeof(wchar_t);
 
+        static_assert(sizeof(control_code) == sizeof(service::Device::Code), "CTL_CODE() must return DWORDs");
+
         const auto nbreq = get_required_output_size(
-            control_code,
+            static_cast<service::Device::Code>(control_code),
             in_buf,
             in_buf_size);
 
         std::vector<unsigned char> output(nbreq);
 
         send_control_code(
-            control_code,
+            static_cast<service::Device::Code>(control_code),
             in_buf,
             in_buf_size,
             output.data(),
-- 
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