From: Martin Quinson <martin.quinson@ens-rennes.fr>
Date: Mon, 29 Oct 2018 20:01:15 +0000 (+0100)
Subject: Fix build without stacktrace_backtrace
X-Git-Tag: v3_22~827
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/80c366c83ae7b4fff1fc8d01d320e1f8faba9acc

Fix build without stacktrace_backtrace
---

diff --git a/include/xbt/backtrace.hpp b/include/xbt/backtrace.hpp
index ff2e3f2e70..de3765e822 100644
--- a/include/xbt/backtrace.hpp
+++ b/include/xbt/backtrace.hpp
@@ -37,7 +37,7 @@ class BacktraceImpl;
  */
 class Backtrace {
 public:
-  BacktraceImpl* impl_;
+  BacktraceImpl* impl_ = nullptr;
   Backtrace();
   Backtrace(const Backtrace& bt);
   ~Backtrace();
diff --git a/src/xbt/backtrace.cpp b/src/xbt/backtrace.cpp
index 743f0a4d4f..db93b541f1 100644
--- a/src/xbt/backtrace.cpp
+++ b/src/xbt/backtrace.cpp
@@ -33,11 +33,6 @@
 
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_backtrace, xbt, "Backtrace");
 
-static bool startWith(std::string str, const char* prefix)
-{
-  return strncmp(str.c_str(), prefix, strlen(prefix)) == 0;
-}
-
 void xbt_backtrace_display(const simgrid::xbt::Backtrace& bt)
 {
   std::string backtrace = simgrid::xbt::resolve_backtrace(bt);
@@ -100,7 +95,8 @@ Backtrace::Backtrace()
 Backtrace::Backtrace(const Backtrace& bt)
 {
   impl_ = bt.impl_;
-  impl_->ref();
+  if (impl_)
+    impl_->ref();
 }
 
 Backtrace::~Backtrace()