From 08754e6ce7812020f38bacf28747d6bcb670fb6e Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Tue, 29 Dec 2015 12:56:23 +0100
Subject: [PATCH] system/Error: add IsAccessDenied()

---
 src/system/Error.hxx | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/system/Error.hxx b/src/system/Error.hxx
index 7f862a0ee..5e2ff3bae 100644
--- a/src/system/Error.hxx
+++ b/src/system/Error.hxx
@@ -138,4 +138,17 @@ IsFileNotFound(const std::system_error &e)
 #endif
 }
 
+gcc_pure
+static inline bool
+IsAccessDenied(const std::system_error &e)
+{
+#ifdef WIN32
+	return e.code().category() == std::system_category() &&
+		e.code().value() == ERROR_ACCESS_DENIED;
+#else
+	return e.code().category() == std::system_category() &&
+		e.code().value() == EACCES;
+#endif
+}
+
 #endif