Question

How to allocate 1MB in Perl

Answer 1

my $one_mb_ref = \('a' x (1024 * 1024));  # Reference to a 1 MB string

print $one_mb_ref;

  
## run:
##
## SCALAR(0x5570d06f5538)
##

 

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Answer 2

my @one_mb_array = (0) x (1024 * 1024 / 4);  # Assuming each integer takes 4 bytes

print $one_mb_array[0];
print $one_mb_array[1];

  
## run:
##
## 00
##

 

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Answer 3

my $buf = ' ' * 1024 * 1024;


  
## run:
##
##

 

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