Our Air Quality 373bf8c36d Quieten a toupper() compiler warning.
Gcc complains that an array index is a 'char' when passing a 'char' to
toupper(). Quieten this by coercing to an 'unsigned char'.

Signed-off-by: goldsimon <goldsimon@gmx.de>
2018-04-25 20:39:25 +02:00
..
2016-08-03 20:21:54 +02:00