Re^3: unless weirdness

In that case you must call your sub as follows :

check_disk_space()
[download]

From perldoc perlsub:

A subroutine may be called using an explicit & prefix. The & is optional in modern Perl, as are parentheses if the subroutine has been predeclared.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

Comment on Re^3: unless weirdness Select or Download Code

Replies are listed 'Best First'.
Re^4: unless weirdness by ikegami (Patriarch) on May 08, 2009 at 06:34 UTC
That quote is misleading. "&" has side-effects. It's purpose isn't to get around declaring a sub.	[reply]
Re^5: unless weirdness by chromatic (Archbishop) on May 08, 2009 at 08:43 UTC
Its purpose isn't to get around declaring a sub. Yes and no. It's an unambiguous parser hint that the following potential bareword isn't a bareword but a subroutine call. I hate it too, but that's one of its functions.	[reply]
Re^4: unless weirdness by Plankton (Vicar) on May 08, 2009 at 21:02 UTC
Why doesn't that apply to ... `die "Not enough disk space.\n" if check_disk_space;` [download] ... ?	[reply] [d/l]