IBMi (AS400) fans only - How to add/subtract days to a date from CL (CONTROL LANGUAGE)

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#IBMiSample

This is a CLLE! Compile with:
CRTBNDCL PGM(DATEDISPLC) SRCFILE(QCLSRC) SRCMBR(DATEDISPLC)


DATEDISPLC.CLLE

/**************************************************************/
/* add/subtract days to a date                                */
/* Try with: CALL DATEDISPLC PARM('270219' X'0000005F')       */
/**************************************************************/
             PGM        PARM(&DATE &DISPLACEM)                     
             DCL        VAR(&DATE) TYPE(*CHAR) LEN(6)              
             DCL        VAR(&DISPLACEM) TYPE(*DEC) LEN(6 0)        
             DCL        VAR(&LILIAN) TYPE(*CHAR) LEN(4)            
                                                                   
             CALLPRC    PRC(CEEDAYS) PARM((&DATE) ('DDMMYY') +     
                          (&LILIAN) (*OMIT))                       
             CHGVAR     VAR(%BIN(&LILIAN)) VALUE(%BIN(&LILIAN) + + 
                          &DISPLACEM)                              
             CALLPRC    PRC(CEEDATE) PARM((&LILIAN) ('DDMMYY') +   
                          (&DATE) (*OMIT))                         
                                                                   
             SNDUSRMSG  MSG(&DATE) MSGTYPE(*INFO)                  
                                                                   
             ENDPGM


Another way if you have date TYPE(*DEC) (this is the most usual format)

DATEDISPLC.CLLE

/**************************************************************/
/* add/subtract days to a date                                */
/* Try with: CALL DATEDISPLC PARM('270219' X'0000005F')       */
/**************************************************************/
             PGM        PARM(&DATE0 &DISPLACEM)                   
             DCL        VAR(&DATE0) TYPE(*DEC) LEN(6 0)           
             DCL        VAR(&DATE) TYPE(*CHAR) LEN(6)             
             DCL        VAR(&DISPLACEM) TYPE(*DEC) LEN(6 0)       
             DCL        VAR(&LILIAN) TYPE(*CHAR) LEN(4)           
             CHGVAR     VAR((&DATE)) VALUE(&DATE0)                
             CALLPRC    PRC(CEEDAYS) PARM((&DATE) ('DDMMYY') +    
                          (&LILIAN) (*OMIT))                      
             CHGVAR     VAR(%BIN(&LILIAN)) VALUE(%BIN(&LILIAN) + +
                          &DISPLACEM)                             
             CALLPRC    PRC(CEEDATE) PARM((&LILIAN) ('DDMMYY') +  
                          (&DATE) (*OMIT))                        
             CHGVAR     VAR((&DATE0)) VALUE(&DATE)
             SNDUSRMSG  MSG(&DATE) MSGTYPE(*INFO)                 
             ENDPGM                                        


I appreciate all the comments made on this blog.       

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