Merge #10645: Use nullptr (C++11) instead of zero (0) as the null pointer constant

36d326e8b Use nullptr instead of zero (0) as the null pointer constant (practicalswift)

Pull request description:

  Use `nullptr` instead of zero (0) as the null pointer constant.

  The road towards `nullptr` (C++11) is split into two PRs:
  * `NULL` → `nullptr` is handled in PR #10483 (scripted)
  * `0` → `nullptr` is handled in PR #10645 (manual, this PR)

  By using the C++11 keyword `nullptr` we are guaranteed a prvalue of type `std::nullptr_t`.

  For a more thorough discussion, see "A name for the null pointer: nullptr" (Sutter &
  Stroustrup), http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf

Tree-SHA512: 5412404b40a94ea2d9fc8f81573559c4ffe559749301d486b09d41a7a736345ad602d08ac590930bb00a49692b6075520cf3d543e4da6ccd5b29fa9bcc3f15ea

1 files changed, 4 insertions, 4 deletions

diff --git a/src/torcontrol.cpp b/src/torcontrol.cpp
index e8bc3e5e7..6b96c24af 100644
--- a/src/torcontrol.cpp
+++ b/src/torcontrol.cpp
@@ -121,7 +121,7 @@ private:
 };
 
 TorControlConnection::TorControlConnection(struct event_base *_base):
-    base(_base), b_conn(0)
+    base(_base), b_conn(nullptr)
 {
 }
 
@@ -227,7 +227,7 @@ bool TorControlConnection::Disconnect()
 {
     if (b_conn)
         bufferevent_free(b_conn);
-    b_conn = 0;
+    b_conn = nullptr;
     return true;
 }
 
@@ -476,7 +476,7 @@ TorController::~TorController()
 {
     if (reconnect_ev) {
         event_free(reconnect_ev);
-        reconnect_ev = 0;
+        reconnect_ev = nullptr;
     }
     if (service.IsValid()) {
         RemoveLocal(service);
@@ -770,7 +770,7 @@ void StopTorControl()
     if (gBase) {
         torControlThread.join();
         event_base_free(gBase);
-        gBase = 0;
+        gBase = nullptr;
     }
 }