#include "src/mc/mc_replay.hpp"
#include "src/simix/smx_private.hpp"
+#include <random>
+
#if SIMGRID_HAVE_MC
#include "src/mc/ModelChecker.hpp"
#include "src/mc/remote/RemoteClient.hpp"
}
}
-static int prng_random(int min, int max)
-{
- unsigned long output_size = ((unsigned long) max - (unsigned long) min) + 1;
- unsigned long input_size = (unsigned long) RAND_MAX + 1;
- unsigned long reject_size = input_size % output_size;
- unsigned long accept_size = input_size - reject_size; // module*accept_size
-
- // Use rejection in order to avoid skew
- unsigned long x;
- do {
-#ifndef _WIN32
- x = (unsigned long) random();
-#else
- x = (unsigned long) rand();
-#endif
- } while( x >= accept_size );
- return min + (x % output_size);
-}
-
int simcall_HANDLER_mc_random(smx_simcall_t simcall, int min, int max)
{
- if (not MC_is_active() && MC_record_path.empty())
- return prng_random(min, max);
+ if (not MC_is_active() && MC_record_path.empty()) {
+ static std::default_random_engine rnd_engine;
+ std::uniform_int_distribution<int> prng(min, max);
+ return prng(rnd_engine);
+ }
return simcall->mc_value;
}