Difference: 0LASubrFileExists (4 vs. 5)

Revision 52014-03-10 - JeanNeron

Line: 1 to 1

META TOPICPARENT	name="APPXRuntimeSubroutineAPI"

.FILE EXISTS

Line: 6 to 6

.FILE EXISTS

Usage:

Changed:

<
<

     PASS        <exists?>                 FIELD           SHARE? Y

>
>

     PASS        <exists?>                 FIELD           SHARE? Y

PASS <pathname> FIELD SHARE? N GOSUB --- .FILE EXISTS * check for errors

Line: 25 to 24

The subroutine tries to open the file for Read access, and if it cannot, it returns a "N". It cannot distinguish between a file that does not exist and a file it cannot open due to file permissions, both cases will return "N".

Changed:

<
<

You can also use this to test if a directory exists by passing a directory name.

>
>

You can also use this to test if a directory exists by passing a directory name (Unix/Linux only).

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