/*
 *----------------------------------------------------------------------
 *
 * tclTomMathInterface.c --
 *
 *	This file contains procedures that are used as a 'glue' layer between
 *	Tcl and libtommath.
 *
 * Copyright (c) 2005 by Kevin B. Kenny.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"
#include "tclTomMath.h"

MODULE_SCOPE const TclTomMathStubs tclTomMathStubs;

/*
 *----------------------------------------------------------------------
 *
 * TclTommath_Init --
 *
 *	Initializes the TclTomMath 'package', which exists as a
 *	placeholder so that the package data can be used to hold
 *	a stub table pointer.
 *
 * Results:
 *	Returns a standard Tcl result.
 *
 * Side effects:
 *	Installs the stub table for tommath.
 *
 *----------------------------------------------------------------------
 */

int
TclTommath_Init(
    Tcl_Interp *interp)		/* Tcl interpreter */
{
    /* TIP #268: Full patchlevel instead of just major.minor */

    if (Tcl_PkgProvideEx(interp, "tcl::tommath", TCL_PATCH_LEVEL,
	    &tclTomMathStubs) != TCL_OK) {
	return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * TclBN_epoch --
 *
 *	Return the epoch number of the TclTomMath stubs table
 *
 * Results:
 *	Returns an arbitrary integer that does not decrease with
 *	release.  Stubs tables with different epochs are incompatible.
 *
 *----------------------------------------------------------------------
 */

int
TclBN_epoch(void)
{
    return TCLTOMMATH_EPOCH;
}

/*
 *----------------------------------------------------------------------
 *
 * TclBN_revision --
 *
 *	Returns the revision level of the TclTomMath stubs table
 *
 * Results:
 *	Returns an arbitrary integer that increases with revisions.
 *	If a client requires a given epoch and revision, any Stubs table
 *	with the same epoch and an equal or higher revision satisfies
 *	the request.
 *
 *----------------------------------------------------------------------
 */

int
TclBN_revision(void)
{
    return TCLTOMMATH_REVISION;
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */
