In C, resizing an array invalidates existing pointers to the array. 

int* a;
a = (int*)malloc(...);
int* b = a;
a = (int*)realloc(a, ...);
/* b now contains garbage */

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The OP was asking if the same happens in Perl. 

my @array;
my $aref = \@array;
push @array, ...;
# Is $aref still valid? Yes.

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In reply to Re^2: array reference by ikegami
in thread array reference by cammac

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