Square Brackets

rhnavc

Hi to all,

I'm just looking at the C/AL code in a table which looks like this:

If Fieldname = ValueXY then begin
if Fieldname[2] = ValueYY then
do something...

Can anyone please tell me what the "Somefield[2]" represents? I know that this type of coding represents an Array of a variable but in this case there is no variable involved and it's really the name of the field.

Anyone?

swpolo

Mostly in such cases it is a record or field variable. And such form is used as array of record or field value variable.
Before you do insert/modify to table all data is stored in memory.
I am sure it is not a good way of programming.

tfranzen

Hi,

a string can be interpreted as an array of chars. So Fieldname[2] is the second letter in the string.

Hope it helps.

Thomas

rhnavc

Just found it out for myself. Obviously its a pointer/index for the character position in the field. 10+ years in NAV - never new that...

rhnavc

Thanks both of you for your replies - I agree with the "not a good way of programming"