Re^2: Detect undefined subroutines

You could use

    sub foo { ... }

    *foo->(...);
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to receive compile-time warnings, assuming you don't use any other global datatype called foo (and doesn't try to call the same undefined subroutine twice).

Update: boldened "warnings" and added parenthesis.

ihb

Read argumentation in its context!

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Re^3: Detect undefined subroutines by tilly (Archbishop) on Sep 18, 2004 at 17:51 UTC
Interesting idea, but it doesn't seem to work. `tilly@(none):~$ perl -ce 'use strict; foo->()' -e syntax OK tilly@(none):~$ perl -e 'use strict; foo->()' Undefined subroutine &main::foo called at -e line 1.` [download] Tested with Perl 5.8.4. UPDATE I see, my oversight.	[reply] [d/l]
Re^4: Detect undefined subroutines by ihb (Deacon) on Sep 18, 2004 at 20:42 UTC
You need to turn on warning to see them... `$ perl -Mstrict -cwe 'foo->()' Name "main::foo" used only once: possible typo at -e line 1. -e syntax OK $ perl -Mstrict -we 'foo->()' Name "main::foo" used only once: possible typo at -e line 1. Undefined subroutine &main::foo called at -e line 1.` [download] `ihb` Read argumentation in its context!	[reply] [d/l] [select]