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/*
* tclArithSeries.h --
*
* This file contains the ArithSeries concrete abstract list
* implementation. It implements the inner workings of the lseq command.
*
* Copyright © 2022 Brian S. Griffin.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
/*
* The structure used for the ArithSeries internal representation.
* Note that the len can in theory be always computed by start,end,step
* but it's faster to cache it inside the internal representation.
*/
typedef struct ArithSeries {
Tcl_WideInt start;
Tcl_WideInt end;
Tcl_WideInt step;
Tcl_WideInt len;
Tcl_Obj **elements;
int isDouble;
} ArithSeries;
typedef struct ArithSeriesDbl {
double start;
double end;
double step;
Tcl_WideInt len;
Tcl_Obj **elements;
int isDouble;
} ArithSeriesDbl;
MODULE_SCOPE Tcl_Obj * TclArithSeriesObjCopy(Tcl_Interp *interp,
Tcl_Obj *arithSeriesPtr);
MODULE_SCOPE int TclArithSeriesObjStep(Tcl_Obj *arithSeriesPtr,
Tcl_Obj **stepObj);
MODULE_SCOPE int TclArithSeriesObjIndex(Tcl_Obj *arithSeriesPtr,
Tcl_WideInt index, Tcl_Obj **elementObj);
MODULE_SCOPE Tcl_WideInt TclArithSeriesObjLength(Tcl_Obj *arithSeriesPtr);
MODULE_SCOPE Tcl_Obj * TclArithSeriesObjRange(Tcl_Obj *arithSeriesPtr,
int fromIdx, int toIdx);
MODULE_SCOPE Tcl_Obj * TclArithSeriesObjReverse(Tcl_Obj *arithSeriesPtr);
MODULE_SCOPE int TclArithSeriesGetElements(Tcl_Interp *interp,
Tcl_Obj *objPtr, size_t *objcPtr, Tcl_Obj ***objvPtr);
MODULE_SCOPE Tcl_Obj * TclNewArithSeriesInt(Tcl_WideInt start,
Tcl_WideInt end, Tcl_WideInt step,
Tcl_WideInt len);
MODULE_SCOPE Tcl_Obj * TclNewArithSeriesDbl(double start, double end,
double step, Tcl_WideInt len);
MODULE_SCOPE Tcl_Obj * TclNewArithSeriesObj(int useDoubles, Tcl_Obj *startObj,
Tcl_Obj *endObj, Tcl_Obj *stepObj, Tcl_Obj *lenObj);
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