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 _matherrl()             Handle Long Double Math Error

 #include   <math.h>

 int _matherrl(except);
 struct _exceptionl *except;            Math exception structure

    _matherrl() is the long double precision version of matherr(); it
    processes errors generated by the long double precision functions.
    You call it with a pointer to an _exceptionl structure:

       {
       int type;
       char _FAR_ *name; /* function where math error occured */
       long double arg1; /* first argument function used */
       long double arg2; /* second argument (if any) function used */
       long double retval; /* value returned by function */
       }


    _matherrl() may be used the same way as matherrl(), except that
    all arguments and values are long double precision values. See
    matherr() for more information.

    Returns:    A nonzero value for success; 0 otherwise.

 Portability:   Not supported by the ANSI standard.