topic EXPLAIN THIS CODE... in Application Development and Automation Discussions

EXPLAIN THIS CODE...

Former Member — Wed, 18 Apr 2007 05:16:37 GMT

DATA: result TYPE i,

n1 TYPE i VALUE 5,

n2 TYPE i VALUE 6.

DEFINE operation.

result = &1 &2 &3.

output &1 &2 &3 result.

END-OF-DEFINITION.

DEFINE output.

write: / 'The result of &1 &2 &3 is', &4.

END-OF-DEFINITION.

operation 4 + 3.

operation 2 ** 7.

operation n2 - n1.

Re: EXPLAIN THIS CODE...

Former Member — Wed, 18 Apr 2007 05:18:10 GMT

Hi,

DATA: result TYPE i,

n1 TYPE i VALUE 5,

n2 TYPE i VALUE 6.

This is macro definition.

DEFINE operation.

result = &1 &2 &3. "&1 &2 &3 are place holders

output &1 &2 &3 result. " Calling the macro output

END-OF-DEFINITION.

This is another macro (output) definition

DEFINE output.

write: / 'The result of &1 &2 &3 is', &4. " 4 place holders passed to this macro

END-OF-DEFINITION.

*Clling the macro operation 3 times with three different *operation( addition, power, subtraction )operation 4 + 3.

operation 2 ** 7.

operation n2 - n1.

Regards,

Re: EXPLAIN THIS CODE...

Former Member — Wed, 18 Apr 2007 05:19:34 GMT

Re: EXPLAIN THIS CODE...

Former Member — Wed, 18 Apr 2007 05:21:44 GMT

Hi srinivas..

that is a macro for which u r passing values

for the first call Operation 4 + 3.

Operation MAcro..

&1 = 4

&2 = +

&3 = 3.

output Macro..

&4 is result....

for the second call Operation 2 ** 3.

&1 = 2

&2 = **

&3 = 3.

output Macro..

&4 is result..

Re: EXPLAIN THIS CODE...

Former Member — Wed, 18 Apr 2007 05:22:10 GMT

Hi,

u hav declared 3 variables n1 n2 result. and there are 2 macros defined in the code operation and output.

operation 4 + 3.

the above statement inserts the values in the place holders and after calculating then it places the values in macros result.

regards,

kiran kumar k

Re: EXPLAIN THIS CODE...

Santosh_Kezkhepatmelathil — Wed, 18 Apr 2007 05:26:46 GMT

hi,

you have created two Macros operation and output.

and then when you execute the below code their respective macros will get executed

operation 4 + 3.

operation 2 ** 7.

operation n2 - n1.

for example : operation 4 + 3. will execute operator macro in which it Contains the output macro and the result will be displayed.

regards,.

santosh.