Update copyright lines with new year.

[simgrid.git] / src / xbt / backtrace.cpp

diff --git a/src/xbt/backtrace.cpp b/src/xbt/backtrace.cpp
index 74126b1..3e58b77 100644 (file)
--- a/src/xbt/backtrace.cpp
+++ b/src/xbt/backtrace.cpp
@@ -1,4 +1,4 @@
-/* Copyright (c) 2005-2019. The SimGrid Team. All rights reserved.          */
+/* Copyright (c) 2005-2020. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
@@ -6,7 +6,6 @@
 #include "src/internal_config.h"
 
 #include <xbt/backtrace.hpp>
-#include <xbt/log.h>
 #include <xbt/string.hpp>
 #include <xbt/sysdep.h>
 #include <xbt/virtu.h>
@@ -34,8 +33,6 @@
 #include <boost/stacktrace.hpp>
 #endif
 
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
-
 /** @brief show the backtrace of the current point (lovely while debugging) */
 void xbt_backtrace_display_current()
 {
@@ -86,17 +83,16 @@ Backtrace::Backtrace()
   impl_->st = boost::stacktrace::stacktrace();
 #endif
 }
-Backtrace::Backtrace(const Backtrace& bt)
+
+Backtrace::Backtrace(const Backtrace& bt) : impl_(bt.impl_)
 {
-  impl_ = bt.impl_;
   if (impl_)
     impl_->ref();
 }
 
 Backtrace::Backtrace(Backtrace&& bt)
 {
-  impl_    = bt.impl_;
-  bt.impl_ = nullptr;
+  std::swap(impl_, bt.impl_);
 }
 
 Backtrace& Backtrace::operator=(const Backtrace& rhs)