Informix ESQL/C $PARAMETER

Hi All, I am going thru a code of ESQL/C. It has something like this. $PARAMETER struct sqlda **stP_da_ptr_main; Please let me know what does $PARAMETER means. All the variables declared a $PARAMETER are sent as parameters to the functions? Regards, Vijay Kumar sending to informix-list

Vijay Kumar wrote: > I am going thru a code of ESQL/C. It has something like this. > $PARAMETER struct sqlda **stP_da_ptr_main; > Please let me know what does $PARAMETER means. All the variables declared a > $PARAMETER are sent as parameters to the functions? It means that the host variable is a function parameter, not a local variable. Most of the time, there's not much difference. However, if you declare an array as a parameter, it is slightly different from a local array. In the specific case of 'struct sqlda **', there's no need to declare it as a host variable. The only place it would be used is in a DESCRIBE statement, and you don't use the host variable notation there (or, at any rate, you don't need to declare the host variable). -- Jonathan Leffler #include <disclaimer.h> Email: jleffler@earthlink.net, jleffler@us.ibm.com Guardian of DBD::Informix v2003.04 -- http://dbi.perl.org/