Another point is that exchange in pool.cc isn't even called in case of
fixated price. However , this time in_place_round is called after
calc_posts unlike before.
Here is a log
D 1000.00 EUR
commodity EUR
precision 2
default
2012-01-01 *
A 2 AAA {=10.122 EUR}
A 1 BBB {=20.123 EUR}
C
-V bal --debug amount.parse
0ms [INFO] Ledger starting
5ms [DEBUG] Rational parsed = 1
5ms [DEBUG] amount.cc: parse
5ms [DEBUG] amount.cc: parse
6ms [DEBUG] Rational parsed = 1
6ms [DEBUG] amount.cc: parse
7ms [DEBUG] amount.cc: parse
12ms [INFO] Parsing file "test.txt"
13ms [DEBUG] Rational parsed = 1000
13ms [DEBUG] amount.cc: parse
14ms [DEBUG] precision directive called 2
15ms [DEBUG] Rational parsed = 5061/500
15ms [DEBUG] amount.cc: parse
16ms [DEBUG] amount.cc: parse
16ms [DEBUG] Rational parsed = 20123/1000
16ms [DEBUG] amount.cc: parse
17ms [DEBUG] amount.cc: parse
18ms [DEBUG] amount.cc: is_zero
18ms [DEBUG] amount.cc: is_zero
19ms [INFO] Read journal file (11ms)
19ms [INFO] Found 1 transactions
20ms [DEBUG] amount.cc: parse
20ms [DEBUG] amount.cc: parse
22ms [DEBUG] post.cc:get_amount wrapper in lookup
22ms [DEBUG] post.cc:get_amount
23ms [DEBUG] filters.cc:calc_posts
23ms [DEBUG] post.cc:get_amount
23ms [DEBUG] filters.cc:calc_posts
23ms [DEBUG] post.cc:get_amount
23ms [DEBUG] filters.cc:calc_posts
23ms [DEBUG] post.cc:get_amount
25ms [DEBUG] account.cc: total
27ms [DEBUG] amount.cc:in place round commodity EUR value 20.24
27ms [DEBUG] amount.cc:in place round commodity EUR value 20.12
27ms [DEBUG] balance.cc: amount added, value before 20.24
27ms [DEBUG] amount.cc:+= value before 20.24
28ms [DEBUG] amount.cc:+= value after 40.36 2nd amt 20.12
28ms [DEBUG] balance.cc: amount added, value after 40.36
29ms [DEBUG] amount.cc: is_zero
34ms [DEBUG] account.cc: total
35ms [DEBUG] amount.cc:in place round commodity EUR value -20.24
35ms [DEBUG] amount.cc:in place round commodity EUR value -20.12
36ms [DEBUG] balance.cc: amount added, value before -20.24
36ms [DEBUG] amount.cc:+= value before -20.24
36ms [DEBUG] amount.cc:+= value after -40.36 2nd amt -20.12
36ms [DEBUG] balance.cc: amount added, value after -40.36
37ms [DEBUG] amount.cc: is_zero
37ms [DEBUG] format.cc:real_calc formatting
39ms [DEBUG] amount.cc:+= value before 20
39ms [DEBUG] amount.cc:+= value after 20 2nd amt 0
40ms [DEBUG] amount.cc:in place round commodity EUR value 20.24
40ms [DEBUG] amount.cc:in place round commodity EUR value 20.12
40ms [DEBUG] balance.cc: amount added, value before 20.24
40ms [DEBUG] amount.cc:+= value before 20.24
40ms [DEBUG] amount.cc:+= value after 40.36 2nd amt 20.12
41ms [DEBUG] balance.cc: amount added, value after 40.36
41ms [DEBUG] amount.cc: is_zero
40.36 EUR A
43ms [DEBUG] format.cc:real_calc formatting
44ms [DEBUG] amount.cc:+= value before 20
44ms [DEBUG] amount.cc:+= value after 20 2nd amt 0
45ms [DEBUG] amount.cc:in place round commodity EUR value -20.24
45ms [DEBUG] amount.cc:in place round commodity EUR value -20.12
45ms [DEBUG] balance.cc: amount added, value before -20.24
46ms [DEBUG] amount.cc:+= value before -20.24
46ms [DEBUG] amount.cc:+= value after -40.36 2nd amt -20.12
46ms [DEBUG] balance.cc: amount added, value after -40.36
46ms [DEBUG] amount.cc: is_zero
-40.36 EUR C
47ms [DEBUG] format.cc:real_calc formatting
--------------------
49ms [DEBUG] format.cc:real_calc formatting
50ms [DEBUG] amount.cc:+= value before 20
50ms [DEBUG] amount.cc:+= value after 20 2nd amt 0
51ms [DEBUG] balance.cc: amount added, value before 2
51ms [DEBUG] amount.cc:+= value before 2
51ms [DEBUG] amount.cc:+= value after 0 2nd amt -2
51ms [DEBUG] balance.cc: amount added, value after 0
51ms [DEBUG] balance.cc: amount added, value before 1
51ms [DEBUG] amount.cc:+= value before 1
52ms [DEBUG] amount.cc:+= value after 0 2nd amt -1
52ms [DEBUG] balance.cc: amount added, value after 0
0
53ms [INFO] Finished executing command (30ms)
53ms [INFO] Ledger ended
>
> On Tue, Jul 1, 2014 at 2:23 AM, John Wiegley <[email protected]>
> wrote:
>
>> >>>>> Martin Michlmayr <[email protected]> writes:
>>
>> > Now that I think about it some more, aren't all rounding problems we've
>> > encountered so far related to valuing one commodity in terms of
>> another? If
>> > so, you'd need to find where this is done and implement rounding there.
>>
>> That would be commodity_pool_t::exchange, in pool.cc, if that is the case.
>>
>> John
>>
>> --
>>
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