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/*  ASCEND modelling environment
    Copyright (C) 1990, 1993, 1994 Thomas Guthrie Epperly
    Copyright (C) 2006 Carnegie Mellon University

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2, or (at your option)
    any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.
*//*
    by Tom Epperly
    8/18/89
    Version: $Revision: 1.7 $
    Version control file: $RCSfile: dimen.h,v $
    Date last modified: $Date: 1997/07/18 12:28:58 $
    Last modified by: $Author: mthomas $
*/

#ifndef ASC_DIMEN_H
#define ASC_DIMEN_H

#include <utilities/ascConfig.h>
#include "compiler.h"
#include "fractions.h"


/* Keep these defines current with DimNames in dimen.h. */
#define NUM_DIMENS            10  
#define D_MASS                0   
#define D_QUANTITY            1   
#define D_LENGTH              2   
#define D_TIME                3   
#define D_TEMPERATURE         4   
#define D_CURRENCY            5   
#define D_ELECTRIC_CURRENT    6   
#define D_LUMINOUS_INTENSITY  7   
#define D_PLANE_ANGLE         8   
#define D_SOLID_ANGLE         9   
struct DimStruct {
  struct fraction f[NUM_DIMENS];  
  unsigned int wild;              
};
#define DIM_WILD 0x1

typedef struct DimStruct dim_type;

ASC_DLLSPEC struct gl_list_t *g_dimen_list;
extern void InitDimenList(void);
extern void DestroyDimenList(void);
#define GetDimFraction(d,i) ((d).f[i])

#define GetDimPower(d,i)  \
 (int)(Denominator((d).f[i])==1 ? Numerator((d).f[i]) : 0)

#define SetDimFraction(d,i,frac) ( (d).f[(i)] = (frac) )

ASC_DLLSPEC void ClearDimensions(dim_type *d);
ASC_DLLSPEC CONST dim_type*Dimensionless(void);
ASC_DLLSPEC CONST dim_type *TrigDimension(void);
ASC_DLLSPEC CONST dim_type *WildDimension(void);
extern CONST dim_type *HalfDimension(CONST dim_type *d, int b);
extern CONST dim_type *ThirdDimension(CONST dim_type *d, int b);
extern CONST dim_type *SquareDimension(CONST dim_type *d, int b);
extern CONST dim_type *CubeDimension(CONST dim_type *d, int b);
extern CONST dim_type *PowDimension(long mult, CONST dim_type *d, int b);
extern void SetWild(dim_type *dim);
ASC_DLLSPEC int IsWild(CONST dim_type *d);
extern int OddDimension(CONST dim_type *d);
extern int NonCubicDimension(CONST dim_type *d);
extern int SameDimen(CONST dim_type *d1, CONST dim_type *d2);
ASC_DLLSPEC int CmpDimen(CONST dim_type *d1, CONST dim_type *d2);
ASC_DLLSPEC CONST dim_type *FindOrAddDimen(CONST dim_type *d);
ASC_DLLSPEC void CopyDimensions(CONST dim_type *src, dim_type *dest);
ASC_DLLSPEC dim_type AddDimensions(CONST dim_type *d1, CONST dim_type *d2);
extern CONST dim_type *SumDimensions(CONST dim_type *d1, CONST dim_type *d2, int check);
ASC_DLLSPEC dim_type SubDimensions(CONST dim_type *d1, CONST dim_type *d2);
extern CONST dim_type *DiffDimensions(CONST dim_type *d1, CONST dim_type *d2, int check);
ASC_DLLSPEC dim_type ScaleDimensions(CONST dim_type *dim, struct fraction frac);
ASC_DLLSPEC void ParseDim(dim_type *dim, CONST char *c);
ASC_DLLSPEC char *DimName(CONST int nIndex);
extern CONST dim_type *CheckDimensionsMatch(CONST dim_type *d1, CONST dim_type *d2);
ASC_DLLSPEC void PrintDimen(FILE *f ,CONST dim_type *d);
ASC_DLLSPEC void PrintDimenMessage(CONST char *message
        , CONST char *label1, CONST dim_type *d1
        , CONST char *label2, CONST dim_type *d2
);

ASC_DLLSPEC void DumpDimens(FILE *f);
/* @} */

#endif /* ASC_DIMEN_H */

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