Re: Check file/dir existence

[jpcarr@xxxxxxxxxxxx]

OK, Has anyone made an RPGIV prototype for the two API's below ?

John Carr


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>Is there an easy way for a program to determine if a file or directory
>exists in the IFS?
>Syd Nicholson

YES!! access() is the function you want - in the Unix-type APIs.

In C, here's a macro to do this:

#include <unistd.h>
#define exists(x) (access(x, F_OK) == 0)  /* x is full path to object */

This works on anything you can specify with a pathname.

BTW, F_OK = 0.

There's also a national language version, QlgAccess(), that uses a pathname
structure that includes CCSID, pathname separator infor, etc.

HTH

Vern