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/****************************************************************************/
/* CODE.H: define various global things for code.c and io.c. */
/* */
/* Copyright (c) 1993 by Joshua E. Barnes, Honolulu, HI. */
/* It's free because it's yours. */
/****************************************************************************/
#include "defs.h"
global string infile; /* file name for snapshot input */
global string outfile; /* file name for snapshot output */
global real freq; /* inverse of integration timestep */
global real freqout; /* output frequency */
global real tstop; /* time to stop calculation */
extern string headline; /* message describing calculation */
global real tnow; /* current value of time */
global real tout; /* time of next output */
global int nstep; /* number of time-steps */
global int nfcalc; /* count force calculations */
global int n2bcalc; /* count body-body interactions */
global int nbccalc; /* count body-cell interactions */
global int nbody; /* number of bodies in system */
global bodyptr bodytab; /* points to array of bodies */
/*
* Global function prototypes.
*/
void initoutput(void); /* open files for output */
void stopoutput(void); /* close output files */
void inputdata(void); /* read initial data file */
void maketree(bodyptr, int); /* construct tree structure */
void hackgrav(bodyptr, bool); /* compute force on body */
void output(void); /* perform output operation */
/*
* Utility routines used in code.c and io.c. These are defined in util.c
* and getparam.c, which must be compiled with same choice of precision.
*/
bool streq(string, string); /* test string equality */
real xrandom(real, real); /* generate a random number */
void initparam(string *, string *); /* initialize parameter pkg */
string getparam(string); /* get parameter as string */
int getiparam(string); /* get parameter as integer */
bool getbparam(string); /* get parameter as bool */
real getrparam(string); /* get parameter as real */
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