89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/*
|
|||
* Copyright (c) 2003-2005 The Regents of The University of Michigan
|
|||
* All rights reserved.
|
|||
*
|
|||
* Redistribution and use in source and binary forms, with or without
|
|||
* modification, are permitted provided that the following conditions are
|
|||
* met: redistributions of source code must retain the above copyright
|
|||
* notice, this list of conditions and the following disclaimer;
|
|||
* redistributions in binary form must reproduce the above copyright
|
|||
* notice, this list of conditions and the following disclaimer in the
|
|||
* documentation and/or other materials provided with the distribution;
|
|||
* neither the name of the copyright holders nor the names of its
|
|||
* contributors may be used to endorse or promote products derived from
|
|||
* this software without specific prior written permission.
|
|||
*
|
|||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|||
|
*
|
||
* Authors: Nathan Binkert
|
|||
* Ali Saidi
|
|||
*/
|
|||
|
|||
#ifdef __SUNPRO_CC
|
|||
#include <stdlib.h>
|
|||
#include <math.h>
|
|||
#endif
|
|||
|
|||
#include <cstdlib>
|
|||
#include <cmath>
|
|||
|
|||
fixes for solaris compile
--HG--
extra : convert_revision : c82a62a61650e3700d237da917c453e5a9676320
|
#include "base/fenv.hh"
|
||
#include "base/random.hh"
|
|||
|
|||
using namespace std;
|
|||
|
|||
uint32_t
|
|||
getInt32()
|
|||
{
|
|||
return mrand48() & 0xffffffff;
|
|||
}
|
|||
|
|||
double
|
|||
getDouble()
|
|||
{
|
|||
return drand48();
|
|||
}
|
|||
|
|||
double
|
|||
m5round(double r)
|
|||
{
|
|||
#if defined(__sun)
|
|||
double val;
|
|||
int oldrnd = m5_fegetround();
|
|||
fixes for solaris compile
--HG--
extra : convert_revision : c82a62a61650e3700d237da917c453e5a9676320
|
m5_fesetround(M5_FE_TONEAREST);
|
||
val = rint(r);
|
|||
m5_fesetround(oldrnd);
|
|||
return val;
|
|||
#else
|
|||
return round(r);
|
|||
#endif
|
|||
}
|
|||
|
|||
int64_t
|
|||
getUniform(int64_t min, int64_t max)
|
|||
{
|
|||
double r;
|
|||
r = drand48() * (max-min) + min;
|
|||
|
|||
return (int64_t)m5round(r);
|
|||
}
|
|||
|
|||
uint64_t
|
|||
getUniformPos(uint64_t min, uint64_t max)
|
|||
{
|
|||
double r;
|
|||
r = drand48() * (max-min) + min;
|
|||
|
|||
return (uint64_t)m5round(r);
|
|||
}
|