RE: [C400-L] Reading file with NULL fields

["Jevgeni Astanovski" <J.Astanovski@xxxxxxxxxxxx>]

Oops.
RTFM.
nullcap=Y.
sorry.
shouldn't work last night before vacation......

        -----Original Message----- 
        From: Jevgeni Astanovski 
        Sent: N 18.12.2003 0:12 
        To: C programming iSeries / AS400 
        Cc: 
        Subject: [C400-L] Reading file with NULL fields
        
        

        There should be some trick about reading files with NULL-capable fields!
        But I deal with it for the first time....
        
        Have a file Y6CPF:
        
        A          R Y6CPFR                                             
        A            CPNC           6A         TEXT('Account number')   
        A            DLP            3A         TEXT('Deal type') ALWNULL
        
        Try to read it :
        
        fp = _Ropen("*LIBL/Y6CPF", "rr") ;
        
        fb = _Rreadf(fp, &Collateral, sizeof(y6cpf), __NO_LOCK) ;
        while (fb->num_bytes == sizeof(y6cpf))                  
        {
          ...
          fb = _Rreadn(fp, &Collateral, sizeof(y6cpf), __NO_LOCK) ;
        }
        
        Nothing strange, I always do it like this.
        Program gets out of the loop on first record, having field DLP=NULL.
        Shit! And my goal was to find just these records...
        What's wrong? It SHOULD be as simple as usual!
        Any help will be really appreciated.
        
        Jevgeni Astanovski.