There is a simple all-perl solution: 
use strict;
use warnings;

my $seq = 'AAGCTTGACCGGG';
my $count = $seq =~ tr/CG/CG/;
print $count, "\n";

RESULT: 8

[download]
Bill

In reply to Re: Inline CPP undefined subroutine by BillKSmith
in thread Inline CPP undefined subroutine by Alessandro

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