http://www.perlmonks.org?node_id=1152827

in reply to Re^3: Problem with a sort result
in thread Problem with a sort result

Looks to me like it's an integer/bigint problem: 9 digits:
```perl -E'
\$h={foo=>{bar=>10000000000},baz=>{bar=>70000000},qux=>{bar=>2000000000
+0}};
say "\$_: \$h->{\$_}->{bar}" for sort { eval { say \$h->{\$b}->{bar}. " - "
+.\$h->{\$a}->{bar}." = ".(\$h->{\$b}->{bar} - \$h->{\$a}->{bar}); \$h->{\$b}-
+>{bar} - \$h->{\$a}->{bar} } } keys %\$h;
'
10000000000 - 70000000 = 9930000000
20000000000 - 10000000000 = 10000000000
qux: 20000000000
foo: 10000000000
baz: 70000000
the expected output is correct. 12 digits:
```perl -E'
\$h={foo=>{bar=>10000000000000},baz=>{bar=>70000000},qux=>{bar=>2000000
+0000000}};
say "\$_: \$h->{\$_}->{bar}" for sort { eval { say \$h->{\$b}->{bar}. " - "
+.\$h->{\$a}->{bar}." = ".(\$h->{\$b}->{bar} - \$h->{\$a}->{bar}); \$h->{\$b}-
+>{bar} - \$h->{\$a}->{bar} } } keys %\$h;
'
20000000000000 - 70000000 = 19999930000000
10000000000000 - 70000000 = 9999930000000
foo: 10000000000000
baz: 70000000
qux: 20000000000000