Help in indicators

[amitabh1_1]

Hi,

Please tell me the difference between HI,LO and EQ indicators. Like what r the functions,why we use these and when to use either of the three...Please specify an example if possible...it's urgent..

[sushma2007]

Re: Help in indicators

Hi

Please go through below link:

http://publib.boulder.ibm.com/iseries/v5r2/ic2924/books/c092508408.htm#HDRRPGIVDF

[pramendra]

Re: Help in indicators

Hello Amitabh,

Indicator are like switch in our rela life . you can use them with your requirements

http://www.jaymoseley.com/hercules/rpgtutor/rpg008.htm

study IBM manuels about SETLL,CHAIN,READE ....

DO Google search.. trust me make Google search ur friend....


Pramendra Pandeya

[MichaelCatalani]

Re: Help in indicators

Hi,

Please tell me the difference between HI,LO and EQ indicators. Like what r the functions,why we use these and when to use either of the three...Please specify an example if possible...it's urgent..

The short answer to this should be that we don't use them.

[NickLitten]

Re: Help in indicators

The HI LO EQ columns in RPG2-3 are used for various reasons.... on a CHAIN operation HI means 'not found' and LO means 'file error'... ona COMP statement they litereally mean that 'factor1' is HIgher, LOwer or EQual to Factor 2.

Since RPG 4 (ILE onwards) most people tend to code without using indicators so

key chain file 99
*in99 ifeq *OFF
// do something
else
// show a message saying record not found
endif

becomes

chain (key) filename;
If %Found(filename);
// do something
else;
// show a message saying record not found
endif;

get your eyeball into some IBM manuals and look up all the various opcodes and see what each indicator can do... indicators on file access are easy to mess up by putting it in the wrong column.

Cheers and Good Luck.

[RPGnoobie]

Re: Help in indicators

...

indicators on file access are easy to mess up by putting it in the wrong column.

...

I'd like to add that, not only are they easy to "mess up" but they also lend to poor code legibility. The sheer volume of indicators possible in a single program can lead to quite a bit of the "now, where did I use *INXX and what did I use it for?"

At the very least, I'd recommend looking into named indicators to help increase legibility. However, with the large number of built-in functions now-a-days, it's very rarely necessary to use these either (I find myself mostly using them for function keys or other DSPF changes).

[amitabh1_1]

Re: Help in indicators

Thanks for your help

[amitabh1_1]

Re: Help in indicators

The HI LO EQ columns in RPG2-3 are used for various reasons.... on a CHAIN operation HI means 'not found' and LO means 'file error'... ona COMP statement they litereally mean that 'factor1' is HIgher, LOwer or EQual to Factor 2.

Since RPG 4 (ILE onwards) most people tend to code without using indicators so

key chain file 99
*in99 ifeq *OFF
// do something
else
// show a message saying record not found
endif

becomes

chain (key) filename;
If %Found(filename);
// do something
else;
// show a message saying record not found
endif;

get your eyeball into some IBM manuals and look up all the various opcodes and see what each indicator can do... indicators on file access are easy to mess up by putting it in the wrong column.

Cheers and Good Luck.

Your answer is the best...I understood the meaning...thanks bro