style(3p/nix): Remove 'using std::*' from types.hh r/840

It is considered bad form to use things from includes in headers, as
these directives propagate to everywhere else and can make it
confusing.

types.hh (which is includes almost literally everywhere) had some of
these directives, which this commit removes.

1 files changed, 3 insertions, 3 deletions

diff --git a/third_party/nix/src/libstore/pathlocks.hh b/third_party/nix/src/libstore/pathlocks.hh
index 90184989cde3..201e3f01b4df 100644
--- a/third_party/nix/src/libstore/pathlocks.hh
+++ b/third_party/nix/src/libstore/pathlocks.hh
@@ -19,13 +19,13 @@ bool lockFile(int fd, LockType lockType, bool wait);
 class PathLocks {
  private:
   typedef std::pair<int, Path> FDPair;
-  list<FDPair> fds;
+  std::list<FDPair> fds;
   bool deletePaths;
 
  public:
   PathLocks();
-  PathLocks(const PathSet& paths, const string& waitMsg = "");
-  bool lockPaths(const PathSet& _paths, const string& waitMsg = "",
+  PathLocks(const PathSet& paths, const std::string& waitMsg = "");
+  bool lockPaths(const PathSet& _paths, const std::string& waitMsg = "",
                  bool wait = true);
   ~PathLocks();
   void unlock();