| Value | Meaning |
|---|---|
| LOG_ALL0 | Display all logs |
| LOG_TRACE1 | Trace logging, intended for internal use only |
| LOG_DEBUG2 | Debug logging, used for internal debugging, it should be disabled on release builds |
| LOG_INFO3 | Info logging, used for program execution info |
| LOG_WARNING4 | Warning logging, used on recoverable failures |
| LOG_ERROR5 | Error logging, used on unrecoverable failures |
| LOG_FATAL6 | Fatal logging, used to abort program: exit(EXIT_FAILURE) |
| LOG_NONE7 | Disable logging |
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Trace log level