From 93f45904537e2ca9837051fddf4b2b80587d87bf Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Fri, 18 Dec 2015 00:54:08 +0100
Subject: system/Error: add IsFileNotFound()

---
 src/system/Error.hxx | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/system')

diff --git a/src/system/Error.hxx b/src/system/Error.hxx
index 5f7f4eb59..948bb47e5 100644
--- a/src/system/Error.hxx
+++ b/src/system/Error.hxx
@@ -31,6 +31,7 @@
 #define SYSTEM_ERROR_HXX
 
 #include "util/StringUtil.hxx"
+#include "Compiler.h"
 
 #include <system_error>
 #include <utility>
@@ -106,4 +107,17 @@ FormatErrno(const char *fmt, Args&&... args)
 
 #endif
 
+gcc_pure
+static inline bool
+IsFileNotFound(const std::system_error &e)
+{
+#ifdef WIN32
+	return e.code().category() == std::system_category() &&
+		e.code().value() == ERROR_FILE_NOT_FOUND;
+#else
+	return e.code().category() == std::system_category() &&
+		e.code().value() == ENOENT;
+#endif
+}
+
 #endif
-- 
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