use Char::Latin9;
print "1..1\n";

my $__FILE__ = __FILE__;

# (?:\x7B)
if ("{" =~ m/(?:\x7B)/) {
    print qq<ok - 1 "{" =~ m/(?:\\x7B)/ $^X $__FILE__\n>;
}
else{
    print qq<not ok - 1 "{" =~ m/(?:\\x7B)/ $^X $__FILE__\n>;
}

__END__