[Tcl-bugs] tcl-cvs: "tcl ChangeLog" modified

[Don P. <dg...@us...>]

Update of /cvsroot/tcl/tcl
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25470

Modified Files:
      Tag: kennykb-numerics-branch
	ChangeLog 
Log Message:
        [kennykb-numerics-branch]

        * generic/tclStrToD.c:  Memory leak.  Comment in TclSetBignumIntRep
        * generic/tclObj.c:     indicates that mp_init() is called on the
        bignumValue argument to clear it, while keeping the digits array
        transferred to the interp of the Tcl_Obj.  The implication is that
        callers of TclSetBignumIntRep() (and their callers) need not call
        mp_clear(), but can imagine they've transferred ownership of an
        mp_int value to Tcl.  However, mp_init() doesn't merely re-initialize
        the fields of an mp_int to hold the value zero.  It also allocates
        a fresh dp array of minimum size governed by MP_PREC.  Without a
        corresponding mp_clear() call somewhere, these dp arrays are leaked.
        Added some mp_clear() calls to fix the leak, but better fix strategies
        should still be pursued.  Perhaps the best approach is to just
        invade the mp_int struct and do the necessary surgery ourselves.