*	number in a format recognized by Tcl.
 *
 *	The arguments bytes, numBytes, and objPtr are the inputs which
 *	determine the string to be parsed. If bytes is non-NULL, it points to
 *	the first byte to be scanned. If bytes is NULL, then objPtr must be
 *	non-NULL, and the string representation of objPtr will be scanned
 *	(generated first, if necessary). The numBytes argument determines the
 *	number of bytes to be scanned. If numBytes is TCL_NOSIZE, the first NUL
 *	byte encountered will terminate the scan. If numBytes is non-negative,
 *	then no more than numBytes bytes will be scanned.
 *
 *	The argument flags is an input that controls the numeric formats
 *	recognized by the parser. The flag bits are:
 *
 *	- TCL_PARSE_INTEGER_ONLY:	accept only integer values; reject

    if (status != TCL_OK) {
	if (interp != NULL) {
	    Tcl_Obj *msg = Tcl_ObjPrintf("expected %s but got \"",
		    expected);

	    Tcl_AppendLimitedToObj(msg, bytes, numBytes, 50, "");
	    Tcl_AppendToObj(msg, "\"", TCL_NOSIZE);
	    Tcl_SetObjResult(interp, msg);
	    Tcl_SetErrorCode(interp, "TCL", "VALUE", "NUMBER", NULL);
	}
    }

    /*
     * Free memory.

     * Infinite values can't convert to bignum.
     */

    if (TclIsInfinite(d)) {
	if (interp != NULL) {
	    const char *s = "integer value too large to represent";

	    Tcl_SetObjResult(interp, Tcl_NewStringObj(s, TCL_NOSIZE));
	    Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW", s, NULL);
	}
	return TCL_ERROR;
    }

    fract = frexp(d,&expt);
    if (expt <= 0) {