Misleading Error Information

[ZhepeiWang]

As for code block line 1000-1006 in lbfgs.c

    /*
        If an unusual termination is to occur then let
        stp be the lowest point obtained so far.
     */
    if ((brackt && ((*stp <= stmin || stmax <= *stp) || param->max_linesearch <= count + 1 || uinfo != 0)) || (brackt && (stmax - stmin <= param->xtol * stmax))) {
        *stp = stx;
    }

This code block may cause misleading error information. For example, if the max_linesearch is achieved, the *stp is set as stx at line 1005. However, the error at line 1023-1025 can be catched firstly in this case, thus the returned error is LBFGSERR_ROUNDING_ERROR instead of LBFGSERR_MAXIMUMLINESEARCH. I wonder if there is a possibility for this to happen.