// following is the header file for test1.cpp, test2.cpp, test3.cpp

#ifndef TEST_H
#define TEST_H

#include <math.h>
#include <limits.h>
#include <float.h>
#include <stdlib.h>
#include <iostream.h>



//Declarations
double f(long theta);
// this function returns a single random value from the
// quadratic test function of Nelson at point theta.
// it calls CalcNorm, a function to generate N(0,1)
// random variates via the inverse cdf method, by
// passing a U(0,1) generated by rand();

long neighbor(long theta);
// this routine generates a candidate solution from the neighborhood
// of theta for the feasible region THETA = [-100, -99, ..., 99, 100]
// by wrapping the feasible region.
// if a bad value is entered, the function returns -9999
// the value is shifted by 100 so as to be an index between 0 and 200

long initTheta(void);
// this function returns a starting solution for test function 1
// the solution is randomly generated from the feasible region
// THETA = [-100, -99, ..., 99, 100] but shifted by 100
// so as to be an index between 0 and 200

double CalcNorm(double U);
// Approximate inverse cdf for standard normal
// Based on vnorm in Bratley, Fox, and Schrage, p.339

//Law & Kelton generator p.454-6
double rand(int stream);
void randst(long zset, int stream);
long randgt(int stream);


//Definitions for L&K
// Define the constants 
#define MODLUS 2147483647
#define MULT1       24112
#define MULT2       26143

/* Set the default seeds for all 100 streams. */
static long zrng[] =
{         0,
 1973272912, 281629770,  20006270,1280689831,2096730329,1933576050,
  913566091, 246780520,1363774876, 604901985,1511192140,1259851944,
  824064364, 150493284, 242708531,  75253171,1964472944,1202299975,
  233217322,1911216000, 726370533, 403498145, 993232223,1103205531,
  762430696,1922803170,1385516923,  76271663, 413682397, 726466604,
  336157058,1432650381,1120463904, 595778810, 877722890,1046574445,
   68911991,2088367019, 748545416, 622401386,2122378830, 640690903,
 1774806513,2132545692,2079249579,  78130110, 852776735,1187867272,
 1351423507,1645973084,1997049139, 922510944,2045512870, 898585771,
  243649545,1004818771, 773686062, 403188473, 372279877,1901633463,
  498067494,2087759558, 493157915, 597104727,1530940798,1814496276,
  536444882,1663153658, 855503735,  67784357,1432404475, 619691088,
  119025595, 880802310, 176192644,1116780070, 277854671,1366580350,
 1142483975,2026948561,1053920743, 786262391,1792203830,1494667770,
 1923011392,1433700034,1244184613,1147297105, 539712780,1545929719,
  190641742,1645390429, 264907697, 620389253,1502074852, 927711160,
  364849192,2049576050, 638580085, 547070247 };

#endif