Create Status objects from errno (#1374)

* Add a portable interface to strerror

* Add Status::FromErrno

* Add strerror_test.cc to the Xcode project

* Use glibc feature selection macros instead of return-type overloads

* Fix tensorflow references

1 files changed, 7 insertions, 0 deletions

diff --git a/Firestore/core/src/firebase/firestore/util/status.h b/Firestore/core/src/firebase/firestore/util/status.h
index 9121b36..5247c92 100644
--- a/Firestore/core/src/firebase/firestore/util/status.h
+++ b/Firestore/core/src/firebase/firestore/util/status.h
@@ -50,6 +50,13 @@ class ABSL_MUST_USE_RESULT Status {
     return Status();
   }
 
+  /// Creates a status object from the given errno error code and message.
+  static Status FromErrno(int errno_code, absl::string_view msg);
+
+#if defined(__OBJC__)
+  static Status FromNSError(NSError* error);
+#endif  // defined(__OBJC__)
+
   /// Returns true iff the status indicates success.
   bool ok() const {
     return (state_ == nullptr);