Conference azur::mcc

144.0. "ACCVIO by MCC$ILV_GET" by CLUSTA::YANG () Tue Jun 05 1990 16:02

    MCC$ILV_GET generated ACCVIO error.
    When my program tried to get an argument as follows:
    
    .....
    value.mcc$b_ver = MCC$K_VER_DESCRIPTOR;
    value.mcc$b_dtype = DSC$K_DTYPE_LU;
    value.mcc$b_class = DSC$K_CLASS_S;
    value.mcc$a_pointer = buffer;
    value.mcc$w_maxstrlen = sizeof(buffer);
    value.mcc$w_curlen = 0;
    value.mcc$l_dt = MCC$K_DT_INTEGER16;
    
    mcccode = MCC$ILV_GET (&ilvctx,
                           &value,
                           MCC$K_NULL_PTR);
    
    %SYSTEM-F-ACCVIO, access violation, reason mask = 04, virtual
    address=00000001, PC =000A7BB6, PSL = 03C00000
    
    exception occurred at MCC$ASN1\mcc$asn_get_ref\%LINE 4687+26
    
    
    
    I have no clue about the virtual address = 1, either value.mcc$b_ver or
    value.mcc$b_class = 1. By the way buffer was declared as (long int).
    
    Yah-Kong,

    Don't bother to look at this problem. The error is that &bufffer should
    be assigned to a_pointer, instead of buffer. Page 342 of MCC SRM has
    the bug which I copied from.
    
    Y.K.

Thank you for bringing this (and the larger problem of the accuracy of the
examples in the SRM) to our attention.  I am QAR'ing the SRM with this
note, just to be sure I don't forget to fix it.

Ruth Kohls