commit 2f13e790839f1b3f975a254ffd4c29a171ab9204
author Marshall Clow <mclow.lists@gmail.com> Thu Nov 16 05:48:32 2017 +0000
committer Marshall Clow <mclow.lists@gmail.com> Thu Nov 16 05:48:32 2017 +0000
tree 78953fd00474979bf2a336f391f71ec604819080
parent 87f4a3de456427b22ab7dd8fcb0c2db58ef57c37

More of P0600 - '[[nodiscard]] in the Library' mark empty() as nodiscard in filesystem::path

llvm-svn: 318378

libcxx/include/experimental/filesystem

diff --git a/libcxx/include/experimental/filesystem b/libcxx/include/experimental/filesystem
index 747f62f..674490f 100644
--- a/libcxx/include/experimental/filesystem
+++ b/libcxx/include/experimental/filesystem
@@ -972,7 +972,8 @@
     _LIBCPP_INLINE_VISIBILITY path extension()      const { return string_type(__extension()); }
 
     // query
-    _LIBCPP_INLINE_VISIBILITY bool empty() const _NOEXCEPT { return __pn_.empty(); }
+    _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY 
+    bool empty() const _NOEXCEPT { return __pn_.empty(); }
 
     _LIBCPP_INLINE_VISIBILITY bool has_root_name()      const { return !__root_name().empty(); }
     _LIBCPP_INLINE_VISIBILITY bool has_root_directory() const { return !__root_directory().empty(); }