From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Wed, 30 Aug 2017 15:27:50 +0000 (+0200)
Subject: Use std::atomic::fetch_add instead of ++ shortcut (clearer to the reader).
X-Git-Tag: v3_17~178
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/326d152a10a4c9907e5e54f104f253155abdc851?ds=sidebyside

Use std::atomic::fetch_add instead of ++ shortcut (clearer to the reader).
---

diff --git a/src/include/xbt/parmap.hpp b/src/include/xbt/parmap.hpp
index bc65ff9274..00f4b8c94b 100644
--- a/src/include/xbt/parmap.hpp
+++ b/src/include/xbt/parmap.hpp
@@ -224,7 +224,7 @@ template <typename T> void Parmap<T>::apply(void (*fun)(T), const std::vector<T>
  */
 template <typename T> boost::optional<T> Parmap<T>::next()
 {
-  unsigned index = this->index++;
+  unsigned index = this->index.fetch_add(1, std::memory_order_relaxed);
   if (index < this->data->size())
     return (*this->data)[index];
   else
@@ -236,11 +236,11 @@ template <typename T> boost::optional<T> Parmap<T>::next()
  */
 template <typename T> void Parmap<T>::work()
 {
-  unsigned index = this->index++;
   unsigned length = this->data->size();
+  unsigned index  = this->index.fetch_add(1, std::memory_order_relaxed);
   while (index < length) {
     this->fun((*this->data)[index]);
-    index = this->index++;
+    index = this->index.fetch_add(1, std::memory_order_relaxed);
   }
 }