[FWP] A Perl curiosity

[sthoenna@efn.org (Yitzchak Scott-Thoennes)]

Someone pointed this out on p5p recently:

#!perl -wl
@array = (1,0,0,1,0);
print scalar grep { 1 if !$_ } @array;
print scalar grep { 1 unless $_ } @array;

Lines 3 and 4 produce different output, for reasons that should be
apparent, given some thought.

I guess that's what Perl gets for blurring C's iron-clad distinction
between statement and expression.

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