string-util: explicitly cast character to unsigned
authorYu Watanabe <watanabe.yu+github@gmail.com>
Sat, 8 May 2021 05:56:31 +0000 (14:56 +0900)
committerLennart Poettering <lennart@poettering.net>
Sat, 8 May 2021 12:24:51 +0000 (14:24 +0200)
commit3d56acef7f73fd7a2e9f23b89340e0849283078d
tree9a35656d4e5731f4f41d9bb2edaa0db919ec6a2a
parent11c38d3e51786e45154bf7a03dc37d52b33d76e0
string-util: explicitly cast character to unsigned

This also adds comment why we cast to unsigned.

Follow-up for 7971f9030ae4bebe0d4a6845ed31584f8ab18103.

Addresses the comment https://github.com/systemd/systemd/pull/19544#discussion_r628472794.
src/basic/string-util.h