SDL / C++ / CSV
the format of the csv is:
datetime, value, comment, kind
29/04/2020 18:32, 8.1,---,d
30/04/2020 17:49, 9.1,---,d
02/05/2020 16:10, 9.7,---,d
03/05/2020 16:27, 9.2,---,d
04/05/2020 19:30, 7.2,---,d
05/05/2020 18:08, 7.1,---,d
06/05/2020 17:45, 8.6,---,d
08/05/2020 11:05, 10.2,---,l
08/05/2020 18:24, 7.5,---,d
10/05/2020 17:14, 7.2,---,d
12/05/2020 16:30, 7.7,---,d
13/05/2020 16:39, 8.3,---,d
14/05/2020 17:48, 8.6,---,d
15/05/2020 18:14, 8.9,---,d
16/05/2020 18:05, 12.1,---,d
17/05/2020 16:35, 9.9,---,d
18/05/2020 16:47, 9.3,---,d
20/05/2020 18:43, 6.8,---,d
22/05/2020 16:21, 10.4,---,d
23/05/2020 18:31, 9.4,---,d
24/05/2020 18:08, 9.1,---,d
25/05/2020 16:57, 9.1,---,d
26/05/2020 17:28, 10.1,---,d
27/05/2020 18:28, 7.9,---,d
28/05/2020 11:24, 11.1,---,l
29/05/2020 16:55, 12.3,---,d