PR libstdc++/82917 add missing returns in <fstream>

PR libstdc++/82917 * include/std/fstream (basic_ifstream::open, basic_ofstream::open) (basic_fstream::open): Fix missing return. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@254638 138bc75d-0d04-0410-961f-82ee72b054a4
hanaa-mohamed · Nov 10, 2017 · 9f06171 · 9f06171
1 parent 151b9ff
commit 9f06171
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2017-11-10  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR libstdc++/82917
+	* include/std/fstream (basic_ifstream::open, basic_ofstream::open)
+	(basic_fstream::open): Fix missing return.
+
 2017-11-07  Jonathan Wakely  <jwakely@redhat.com>
 
 	* src/filesystem/ops-common.h (make_file_type) [S_ISSOCK]: Only use

diff --git a/libstdc++-v3/include/std/fstream b/libstdc++-v3/include/std/fstream
@@ -663,7 +663,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       template<typename _Path>
 	auto
 	open(const _Path& __s, ios_base::openmode __mode = ios_base::in)
-	-> decltype(_M_filebuf.open(__s, __mode))
+	-> decltype((void)_M_filebuf.open(__s, __mode))
 	{ open(__s.c_str(), __mode); }
 #endif // C++17
 #endif // C++11
@@ -891,7 +891,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       template<typename _Path>
 	auto
 	open(const _Path& __s, ios_base::openmode __mode = ios_base::out)
-	-> decltype(_M_filebuf.open(__s, __mode))
+	-> decltype((void)_M_filebuf.open(__s, __mode))
 	{ open(__s.c_str(), __mode); }
 #endif // C++17
 #endif // C++11
@@ -1118,7 +1118,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	auto
 	open(const _Path& __s,
 	     ios_base::openmode __mode = ios_base::in | ios_base::out)
-	-> decltype(_M_filebuf.open(__s, __mode))
+	-> decltype((void)_M_filebuf.open(__s, __mode))
 	{ open(__s.c_str(), __mode); }
 #endif // C++17
 #endif // C++11