And now for something completely different :) 

#!/usr/bin/perl

use strict; # https://perlmonks.org/?node_id=11162756
use warnings;

Test();

sub hasSameChars
  {
  ( grep(defined, @_) or return 1 ) < @_ and return 0;
  my %same = map { do {
    my @count = (0) x 256;
    $count[ord $&]++ while /./gs;
    "@count"
    }, 1 } @_;
  return %same == 1 ? 1 : 0;
  }

sub Test
{
  my $ERRORS = 0;

  # TESTING TRUE:
  hasSameChars("Hello World!", "Hello World!")                 == 1 or
+ $ERRORS++;
  hasSameChars("Hello World!", "Hdll!ooreWl ")                 == 1 or
+ $ERRORS++;
  hasSameChars("Hello World!", "Hdll!ooreWl ", "Hlde! Wlloor") == 1 or
+ $ERRORS++;
  hasSameChars("FALLEN", "LENFAL", "ELFALN")                   == 1 or
+ $ERRORS++;
  hasSameChars(undef, undef, undef)                            == 1 or
+ $ERRORS++;
  hasSameChars('', '', '', '')                                 == 1 or
+ $ERRORS++;
  hasSameChars('A', 'A', 'A', 'A')                             == 1 or
+ $ERRORS++;
  hasSameChars("\r\n\t\0\0\1", "\0\1\t\0\n\r", "\n\1\r\t\0\0") == 1 or
+ $ERRORS++;
  hasSameChars('ABB', 'BBA', 'BAB', 'BBA')                     == 1 or
+ $ERRORS++;
  hasSameChars('   ', '   ', '   ', '   ')                     == 1 or
+ $ERRORS++;
  hasSameChars("ABC", "CAB", "BAC", "BCA", "ACB", "ABC")       == 1 or
+ $ERRORS++;

  # TESTING FALSE:
  hasSameChars("\r\n\t\0\1\2", "\0\2\t\1\n\r", "\t\t\r\1\2\n") == 0 or
+ $ERRORS++;
  hasSameChars("Hello World!", "Hdll!ooreWl ", "Hlde! Wlloo")  == 0 or
+ $ERRORS++;
  hasSameChars("Hello World!", "Hdll!ooreWl")                  == 0 or
+ $ERRORS++;
  hasSameChars("ABC", "C_B", "BAC", "BCA", "ACB", "ABC")       == 0 or
+ $ERRORS++;
  hasSameChars("ALLEN", "ELLEN", "HALLEN", "HELLEN")           == 0 or
+ $ERRORS++;
  hasSameChars("FALLEN", "Lenfal", "ELFALN")                   == 0 or
+ $ERRORS++;
  hasSameChars("FALLEN", "FALLEN ")                            == 0 or
+ $ERRORS++;
  hasSameChars(undef, "FALLEN", "FALLEN")                      == 0 or
+ $ERRORS++;
  hasSameChars("FALLEN", undef, "FALLEN")                      == 0 or
+ $ERRORS++;
  hasSameChars("FALLEN", "FALLEN", undef)                      == 0 or
+ $ERRORS++;
  hasSameChars('', undef, undef)                               == 0 or
+ $ERRORS++;
  hasSameChars('ABB', 'ABA', 'BAA', 'BAA')                     == 0 or
+ $ERRORS++;
  hasSameChars('   ', '   ', '   ', "\t")                      == 0 or
+ $ERRORS++;

  print "ERRORS = $ERRORS\n";
}

[download]

Outputs:

ERRORS = 0

[download]

In reply to Re: Check if string A and B are made up of same chars by tybalt89
in thread Check if string A and B are made up of same chars by harangzsolt33

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