topic Re: Calling saved,compiled MACROS in SAS Programming

Calling saved,compiled MACROS

thepushkarsingh — Mon, 11 Feb 2019 11:14:02 GMT

I am using folowing:

%LET compile_macros = N;

libname optmacro "C:\Codes\Macros";
options mstored sasmstore=optmacro;

(...)

%IF &compile_macros. = Y %then %do;
%include "&location.\Codes\02_ Macro - Prediction.sas";

(...)

And 02_ Macro - Prediction.sas contains a macro named: macro grade_prediction /store;

Each time I open a new session, in the first run when compile_macros = Y/N, the run is success without any error, but from the second run onwards, I am getting following errors:

ERROR: Unable to clear or re-assign the library OPTMACRO because it is still in use.
ERROR: Error in the LIBNAME statement.

I am unable to re-assign the library and without it I don't know how to direct SAS to saved/compiled MACROS.

I tried 'libname optmacro CLEAR;' before assignment but to no avail.

Any idea how can I correct these error?

Thanks a lot in advance.

Re: Calling saved,compiled MACROS

andreas_lds — Mon, 11 Feb 2019 12:04:56 GMT

I have not used compiled macros for a long time and i recommend not to use them at all, as they can cause serious trouble. The error message is afaik caused by

options sasmstore=optmacro;

So resetting sasmstore should solve the issue.

options SASMSTORE='';

Re: Calling saved,compiled MACROS

SASJedi — Mon, 11 Feb 2019 12:06:37 GMT

You didn't include the "&location.\Codes\02_ Macro - Prediction.sas" ode, so I can

t be 100% sure, but it looks like you are compiling your macros to a permanent library using code similar to this:

libname OPTMACRO "some location";
options mstored sasmstore=OPTMACRO;
%macro MyMacro1 /stored;
   /*...more macro code...*/
%mend;
%macro MyMacro2 /stored;
   /*...more macro code...*/
%mend;

/* And after the macro definitions: */
libname OPTMACRO clear;

You'll get the "ERROR: Unable to clear or re-assign the library OPTMACRO because it is still in use" message because SAS is still using the SASMACR catalog in the OPTMACRO library for compiled macro storage. Inserting a %sysmstoreclear macro statement just before trying to clear the OPTMACRO libref should do the trick - something like this:

%sysmstoreclear;
libname OPTMACRO clear;

May the SAS be with you!

Mark

Re: Calling saved,compiled MACROS

Kurt_Bremser — Mon, 11 Feb 2019 12:28:09 GMT

Save yourself the hassle of compiled macros and use the autocall facility.

Also see Maxims 26 & 27.

Re: Calling saved,compiled MACROS

thepushkarsingh — Mon, 11 Feb 2019 12:34:11 GMT

Thank you very much for the tip. I'll try SASAUTOS now.

Re: Calling saved,compiled MACROS

thepushkarsingh — Mon, 11 Feb 2019 12:52:30 GMT

I think I am doing exactly like this, but after first run, in the same session all the subsequent runs still give the same error.

Re: Calling saved,compiled MACROS

thepushkarsingh — Mon, 11 Feb 2019 12:53:26 GMT

I tried this but still same error. I can refrain from using compiled macros, will try autocall. Thanks for the tip.