From: Augustin Degomme <adegomme@gmail.com>
Date: Fri, 22 Nov 2019 14:10:07 +0000 (+0100)
Subject: don't forget that calloc assigns 0 to the buffer
X-Git-Tag: v3.25~371
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/5a4a50803fa81e171c6c4b6962c597a3b33f55ca?ds=sidebyside

don't forget that calloc assigns 0 to the buffer
---

diff --git a/src/smpi/internals/smpi_shared.cpp b/src/smpi/internals/smpi_shared.cpp
index 9f9d03b868..b549d72efa 100644
--- a/src/smpi/internals/smpi_shared.cpp
+++ b/src/smpi/internals/smpi_shared.cpp
@@ -351,10 +351,13 @@ void *smpi_shared_malloc_intercept(size_t size, const char *file, int line) {
 }
 
 void* smpi_shared_calloc_intercept(size_t num_elm, size_t elem_size, const char* file, int line){
-  if( simgrid::config::get_value<double>("smpi/auto-shared-malloc-thresh") == 0 || elem_size*num_elm < simgrid::config::get_value<double>("smpi/auto-shared-malloc-thresh"))
-    return ::operator new(elem_size*num_elm);
-  else
+  if( simgrid::config::get_value<double>("smpi/auto-shared-malloc-thresh") == 0 || elem_size*num_elm < simgrid::config::get_value<double>("smpi/auto-shared-malloc-thresh")){
+    void* ptr = ::operator new(elem_size*num_elm);
+    memset(ptr, 0, elem_size*num_elm);
+    return ptr;
+  } else
     return smpi_shared_malloc(elem_size*num_elm, file, line);
+
 }
 
 void *smpi_shared_malloc(size_t size, const char *file, int line) {