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global.cc
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//
// Copyright 2018 The Simons Foundation, Inc. - All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#include "itensor/global.h"
namespace itensor {
bool&
Global::checkArrows()
{
static bool checkArrows_ = true;
return checkArrows_;
}
bool&
Global::debug1()
{
static bool debug1_ = false;
return debug1_;
}
bool&
Global::debug2()
{
static bool debug2_ = false;
return debug2_;
}
bool&
Global::debug3()
{
static bool debug3_ = false;
return debug3_;
}
bool&
Global::debug4()
{
static bool debug4_ = false;
return debug4_;
}
bool&
Global::printdat()
{
static bool printdat_ = false;
return printdat_;
}
Real&
Global::printScale()
{
static Real printScale_ = 1E-10;
return printScale_;
}
bool&
Global::showIDs()
{
static bool showIDs_ = true;
return showIDs_;
}
Real
Global::random(int seed)
{
using Generator = std::mt19937;
using Distribution = std::uniform_real_distribution<Real>;
static Generator rng(std::time(NULL)+getpid());
static Distribution dist(0,1);
if(seed != 0) //reseed rng
{
rng = Generator(seed);
}
return dist(rng);
}
void
Global::warnDeprecated(const std::string& message)
{
static int depcount = 1;
if(depcount <= 10)
{
println("\n\n",message,"\n");
++depcount;
}
}
bool&
Global::read32BitIDs()
{
static bool read32_ = false;
return read32_;
}
} //namespace itensor