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### Re: how to check if a number falls in a range?

by almut (Canon)
 on Mar 14, 2010 at 20:23 UTC ( #828608=note: print w/replies, xml ) Need Help??

in reply to how to check if a number falls in a range?

how to check if a number falls in a range?
```#!/usr/bin/perl
use strict;
use warnings;

my (\$lower, \$upper) = (40, 100);

for my \$num (17,42,99,111) {

my \$is_between = (sort {\$a <=> \$b} \$lower, \$upper, \$num)[1] == \$nu
+m;

printf "\$num is%s between \$lower and \$upper\n", \$is_between ? "" :
+ " not";
}

__END__
17 is not between 40 and 100
42 is between 40 and 100
99 is between 40 and 100
111 is not between 40 and 100

Or  (not sure which you meant) :

how should I check if the \$start and \$end in the range of \$startPosition and \$endPosition?
```#!/usr/bin/perl
use strict;
use warnings;
use 5.010;

my (\$lower, \$upper) = (40, 100);

for my \$range ( [10,17],
[30,71],
[42,99],
[83,120],
[101,111] ) {

my \$is_within = [(sort {\$a <=> \$b} \$lower, \$upper, @\$range)[1,2]]
+~~ \$range;

printf "[@\$range] is%s within [\$lower \$upper]\n", \$is_within ? ""
+: " not";
}

__END__
[10 17] is not within [40 100]
[30 71] is not within [40 100]
[42 99] is within [40 100]
[83 120] is not within [40 100]
[101 111] is not within [40 100]

;-)

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