what this code means?

[thepunisher]

Hi,

Could you tell me what this code below does, and what the variables mean?

I know its opening a file, but i dont know what the UNIT and ORGANIZATION for example mean, i have never coded fortran before.

I am converting this code to VB, so i have to be able to understand it.

OPEN (UNIT=5, ACCESS='SEQUENTIAL', CARRIAGECONTROL='LIST',
+FORM='FORMATTED', ORGANIZATION='SEQUENTIAL', READONLY,
+STATUS='OLD')

Thanks,

thePunisher


The Wolf: Thats 30 minutes away. I'll be there in 10.

 

[PAndersen]

The unit number will be used as a file reference when reading data from the file. Unit 5 is probably the keyboard. ORGANIZATION refers to the logical file structure. You can omit it in the example as SEQUENTIAL is default.

 

[thepunisher]

Ok,

but how do i specify the directory of the file i want to read in?


The Wolf: Thats 30 minutes away. I'll be there in 10.

 

[PAndersen]

In the OPEN statement, the FILE parameter is used to specify the file name. Example : FILE='c:\data\innfile', for a fixed name or FILE=filename where filename is a character variable.

 

[ArkM]

Every Fortran implementation has its own rules to define real file names outside a program in (before) run time. So it's a common practice do not define file names in source texts (OPEN stmt) in Fortran World (refer to it via unit number only).
As far as I know, no such (good) feature in VB, so specify file name in VB open when convert Fortran to VB...