From 09de734185a72afed53217cb44befbfd0f68399b Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Mon, 20 Feb 2017 18:10:04 +1100
Subject: [PATCH] posix/fd: label write/read calls with warn_unused

---
 posix/fd.hpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/posix/fd.hpp b/posix/fd.hpp
index 7573e9c6..05e00cf2 100644
--- a/posix/fd.hpp
+++ b/posix/fd.hpp
@@ -52,11 +52,11 @@ namespace util::posix {
         struct ::stat stat (void) const;
 
         //---------------------------------------------------------------------
-        ssize_t read  (      void *buf, size_t count);
-        ssize_t write (const void *buf, size_t count);
+        [[gnu::warn_unused_result]] ssize_t read  (      void *buf, size_t count);
+        [[gnu::warn_unused_result]] ssize_t write (const void *buf, size_t count);
 
         //---------------------------------------------------------------------
-        off_t lseek (off_t offset, int whence);
+        [[gnu::warn_unused_result]] off_t lseek (off_t offset, int whence);
 
         ///////////////////////////////////////////////////////////////////////
         operator int (void) const;