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// -*- C++ -*-
// $Id: testEngineCopy.cc,v 1.2 2010/06/16 17:24:53 garren Exp $
// ----------------------------------------------------------------------
#include "CLHEP/Units/GlobalPhysicalConstants.h" // used to provoke shadowing warnings
#include "CLHEP/Random/Randomize.h"
#include "CLHEP/Random/NonRandomEngine.h"
#include "CLHEP/Random/defs.h"
#include <iostream>
#include <iomanip>
#include <vector>
#define CLEAN_OUTPUT
#ifdef CLEAN_OUTPUT
std::ofstream output("testEngineCopy.cout");
#else
std::ostream & output = std::cout;
#endif
// Normally on for routine validation:
#ifdef TURNOFF
#endif
#define TEST_ENGINE_COPY
#define VERBOSER
#define VERBOSER2
using namespace CLHEP;
// Absolutely Safe Equals Without Registers Screwing Us Up
bool equals01(const std::vector<double> &ab) {
return ab[1]==ab[0];
}
bool equals(double a, double b) {
std::vector<double> ab(2);
ab[0]=a; ab[1]=b;
return (equals01(ab));
}
std::vector<double> aSequence(int n) {
std::vector<double> v;
DualRand e(13542);
RandFlat f(e);
for (int i=0; i<n; i++) {
v.push_back(f());
}
return v;
}
// ----------- Copy of engines -----------
template <class E>
int vectorTest64(int n) {
output << "Copy 64bit test for " << E::engineName() << "\n";
E e;
double x = 0;
for (int i=0; i<n; i++) x += e.flat();
E f( e );
x = e.flat();
output << "x = " << x << std::endl;
double y = f.flat();
output << "y = " << y << std::endl;
if( x != y ) return n;
for( int i=0; i<1000; ++i ) {
x = e.flat();
y = f.flat();
if( !equals(x,y) ) {
output << "i = " << i << " x, y " << x << " " << y
<< " vectorTest64 problem: e != f \n";
return n+i;
}
}
return 0;
}
// special case for NonRandomEngine
template <>
int vectorTest64<NonRandomEngine>(int n) {
output << "Copy 64bit test for " << NonRandomEngine::engineName() << "\n";
std::vector<double> nonRand = aSequence(500);
NonRandomEngine e;
e.setRandomSequence(&nonRand[0], nonRand.size());
double x = 0;
for (int i=0; i<n; i++) x += e.flat();
std::vector<unsigned long> v = e.put();
NonRandomEngine f(e);
x = e.flat();
output << "x = " << x << std::endl;
double y = f.flat();
output << "y = " << y << std::endl;
if( x != y ) return n;
for( int i=0; i<300; ++i ) {
if( e.flat() != f.flat() ) {
output << "i = " << i << " vectorTest64 for NonRandomEngine problem: e != f \n";
return n+i;
}
}
return 0;
}
template <class E>
E vectorRestore1(int n, std::vector<double> & v) {
output << "Copy for " << E::engineName() << "\n";
E e(97538466);
double r=0;
for (int i=0; i<n; i++) r += e.flat();
E f(e);
for (int j=0; j<25; j++) v.push_back(e.flat());
#ifdef VERBOSER2
output << "First four of v are: "
<< v[0] << ", " << v[1] << ", " << v[2] << ", " << v[3] << "\n";
#endif
return f;
}
template <>
NonRandomEngine
vectorRestore1<NonRandomEngine> (int n, std::vector<double> & v) {
#ifdef VERBOSER2
output << "Copy for " << NonRandomEngine::engineName() << "\n";
#endif
std::vector<double> nonRand = aSequence(500);
NonRandomEngine e;
e.setRandomSequence(&nonRand[0], nonRand.size());
double r=0;
for (int i=0; i<n; i++) r += e.flat();
NonRandomEngine f(e);
for (int j=0; j<25; j++) v.push_back(e.flat());
#ifdef VERBOSER2
output << "First four of v are: "
<< v[0] << ", " << v[1] << ", " << v[2] << ", " << v[3] << "\n";
#endif
return f;
}
template <class E>
int vectorRestore2(E & f, const std::vector<double> & v) {
int stat = 0;
std::vector<double> k;
for (int j=0; j<25; j++) k.push_back(f.flat());
#ifdef VERBOSER2
output << "First four of k are: "
<< k[0] << ", " << k[1] << ", " << k[2] << ", " << k[3] << "\n";
#endif
for (int m1=0; m1<25; m1++) {
if ( v[m1] != k[m1] ) {
std::cout << "???? Incorrect copy restored value for engine: "
<< E::engineName() << "\n";
#ifdef CLEAN_OUTPUT
output << "???? Incorrect copy restored value for engine: "
<< E::engineName() << "\n";
#endif
stat |= 1048576;
return stat;
}
}
return stat;
}
template <class E>
int vectorRestore(int n) {
std::vector<double> v;
int status1 = vectorTest64<E>(n);
E f = vectorRestore1<E>(n,v);
int status2 = vectorRestore2<E>(f, v);
return (status1 | status2);
}
// ---------------------------------------------
// ---------------------------------------------
// ---------------------------------------------
int main() {
int stat = 0;
#ifdef TEST_ENGINE_COPY
output << "\n=================================\n";
output << " Part IX \n";
output << " Copy test of engines\n";
output << "=================================\n\n";
stat |= vectorRestore<DualRand>(113);
// copies of DRand48Engine are not allowed
//stat |= vectorRestore<DRand48Engine>(114);
stat |= vectorRestore<Hurd160Engine>(115);
stat |= vectorRestore<Hurd288Engine>(116);
stat |= vectorRestore<HepJamesRandom>(117);
stat |= vectorRestore<MTwistEngine>(118);
stat |= vectorRestore<RanecuEngine>(139);
stat |= vectorRestore<Ranlux64Engine>(119);
stat |= vectorRestore<RanluxEngine>(120);
stat |= vectorRestore<RanshiEngine>(121);
stat |= vectorRestore<TripleRand>(122);
stat |= vectorRestore<NonRandomEngine>(123);
// anonymous engines are not copyable
//stat |= vectorRestore<RandEngine>(129);
#endif
output << "\n=============================================\n\n";
if (stat != 0) {
std::cout << "One or more problems detected: stat = " << stat << "\n";
output << "One or more problems detected: stat = " << stat << "\n";
} else {
output << "ranRestoreTest passed with no problems detected.\n";
}
if (stat == 0) return 0;
if (stat > 0) return -(stat|1);
return stat|1;
}
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