Fix Firestore source errors under VS2017 (#1515)

* Project file updates from sync_project.rb

* Fix misc compile errors under VS2017

* Fix util/hashing under VS2017

std::hash<int> is not just a pass through in Microsoft's STL.

* Disable unsafe code warnings in VS2017

... where comparing against a reference implementation that has no easy
safe equivalent.

* Handle drive letters in paths on Windows

1 files changed, 11 insertions, 0 deletions

diff --git a/Firestore/core/test/firebase/firestore/util/strerror_test.cc b/Firestore/core/test/firebase/firestore/util/strerror_test.cc
index 854cb08..e6e64a4 100644
--- a/Firestore/core/test/firebase/firestore/util/strerror_test.cc
+++ b/Firestore/core/test/firebase/firestore/util/strerror_test.cc
@@ -23,9 +23,20 @@ namespace firestore {
 namespace util {
 
 TEST(StrErrorTest, ValidErrorCode) {
+#if defined(_MSC_VER)
+#pragma warning(push)
+  // strerror is unsafe generally, but it's used here as the simplest possible
+  // reference implementation.
+#pragma warning(disable : 4996)
+#endif
+
   errno = EAGAIN;
   EXPECT_EQ(StrError(EINTR), strerror(EINTR));
   EXPECT_EQ(errno, EAGAIN);
+
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
 }
 
 TEST(StrErrorTest, InvalidErrorCode) {