Without the prototype, 
>perl -c -e"use strict; use warnings; sysread(FH, my $buf='', 16384)"
Name "main::FH" used only once: possible typo at -e line 1.
-e syntax OK

>perl -c -e"use strict; use warnings; foo(FH, my $buf='', 16384)"
Bareword "FH" not allowed while "strict subs" in use at -e line 1.
-e had compilation errors.

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In reply to Re: What is wrong with "sysread @list" by ikegami
in thread What is wrong with "sysread @list" by tfoertsch

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