[Info-vax] Error Messages in Basic - %BASIC-E-PARMODNOT, mode for parameter <n> of routine <procedure-name> not as declared

[Craig Dedo]

When trying to use the OpenVMS Run Time Library procedures LIB$CONVERT_DATE_STRING() and LIB$DAY_OF_WEEK() with HP Basic for OpenVMS, I am getting  %BASIC-E-PARMODNOT error messages.  Here is a screenshot of the messages from the compiler.

[Begin compiler error messages]
    VMS_Condition_Code_gl   = LIB$CONVERT_DATE_STRING ( End_of_Month_Date_gs, End_of_Month_Date_Time_gq, Date_Time_Context_gl )
..............................................................................^
%BASIC-E-PARMODNOT, mode for parameter 2 of routine LIB$CONVERT_DATE_STRING not as declared
at line number 166 in file SMP_DEVELOP_DV:[YYY1V30.TOLAS.DEV.OLIVE.STARLET]Test_Days_in_Month.BAS;4

    VMS_Condition_Code_gl   = LIB$DAY_OF_WEEK ( End_of_Month_Date_Time_gq, End_of_Month_Weekday_gl )
................................................^
%BASIC-E-PARMODNOT, mode for parameter 1 of routine LIB$DAY_OF_WEEK not as declared
at line number 167 in file SMP_DEVELOP_DV:[YYY1V30.TOLAS.DEV.OLIVE.STARLET]Test_Days_in_Month.BAS;4
%BASIC-E-ENDNOOBJ, SMP_DEVELOP_DV:[YYY1V30.TOLAS.DEV.OLIVE.STARLET]Test_Days_in_Month.BAS;4 completed with 2 diagnostics - object deleted
[End of compiler error messages]

Here are the relevant variable declarations at the top of my program:
Declare Long            Date_Time_Context_gl
Declare String          End_of_Month_Date_gs
Declare Quad            End_of_Month_Date_Time_gq
Declare Long            End_of_Month_Weekday_gl
Declare Long            VMS_Condition_Code_gl

I also included all of the relevant definitions from several of the modules in SYS$LIBRARY:BASIC$STARLET.TLB.

What is going wrong?  What can I do to fix this problem?

Any help that anyone could give me would be most appreciated.

Sincerely,
Craig T. Dedo, OpenVMS Software Development Consultant
Navistar, Inc.
2701 Navistar Drive
Lisle, IL   60532-3637
E-mail:  <Craig.Dedo at navistar.com>