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Re^7: Binary to decimal conversion

by Fletch (Chancellor)
on Dec 11, 2007 at 14:02 UTC ( #656408=note: print w/replies, xml ) Need Help??


in reply to Re^6: Binary to decimal conversion
in thread Binary to decimal conversion

Because print takes a LIST and hence provides a list context to reverse which triggers the list context behavior from the latter (and a 1 element list reversed is indistinguishable from the original 1 element list for obvious reasons). Stick a scalar in there after the print, and/or store the reverse into a scalar temporary variable, and you'll see the behavior you're expecting.

The cake is a lie.
The cake is a lie.
The cake is a lie.

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Re^8: Binary to decimal conversion
by ikegami (Pope) on Dec 11, 2007 at 19:09 UTC
    Said code (and then some): 
    $\ = "\n";

print(my @a = reverse('hello'));  # hello (order or scalars reversed)
print(my $s = reverse('hello'));  # olleh (order of chars reversed)

print(reverse('hello'));          # hello (order or scalars reversed)
print(scalar(reverse('hello')));  # olleh (order of chars reversed)

sub f(@) { return @_; }
sub g($) { return @_; }

print(f(reverse('hello'));        # hello (order or scalars reversed)
print(g(reverse('hello')));       # olleh (order of chars reversed)

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