From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Sat, 20 Apr 2019 20:47:09 +0000 (+0200)
Subject: drand48 is not used anymore; stop using srand48.
X-Git-Tag: v3.22.2~58
X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/commitdiff_plain/7c325b8aab369b3db924f9c3bcfbf8a97523745c

drand48 is not used anymore; stop using srand48.
---

diff --git a/ChangeLog b/ChangeLog
index 951d936a71..31b379070b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 SimGrid (3.23) NOT RELEASED (Release Target: June 21. 2019, 15:54 UTC)
 
+General:
+ - Stop setting random seed with srand48() at initialization.
+
 XBT:
  - New log appenders: stdout and stderr. Use stdout for xbt_help.
  - Drop xbt_dict_dump.
diff --git a/src/instr/instr_private.hpp b/src/instr/instr_private.hpp
index 985d664e1c..4aa5ee91c0 100644
--- a/src/instr/instr_private.hpp
+++ b/src/instr/instr_private.hpp
@@ -27,8 +27,6 @@
 #include <sys/stat.h>
 #ifdef WIN32
 #include <direct.h> // _mkdir
-/* Need to define function drand48 for Windows */
-#define drand48() (rand() / (RAND_MAX + 1.0))
 #endif
 
 typedef simgrid::instr::Container* container_t;
diff --git a/src/xbt/xbt_main.cpp b/src/xbt/xbt_main.cpp
index 5fe38453b0..5a80ce6412 100644
--- a/src/xbt/xbt_main.cpp
+++ b/src/xbt/xbt_main.cpp
@@ -93,11 +93,6 @@ static void xbt_preinit()
 #endif
   xbt_log_preinit();
   xbt_dict_preinit();
-
-#ifndef _WIN32
-  constexpr unsigned seed = 2147483647;
-  srand48(seed); // FIXME: still worthwhile?
-#endif
   atexit(xbt_postexit);
 }