50                            const struct clc_logger *logger);
58               const struct clc_logger *logger,
64                   const struct clc_logger *logger,
69                const struct clc_logger *logger,
75                         const struct clc_logger *logger,
80                    const struct clc_logger *logger,
98 #define clc_log(logger, level, fmt, ...) do {        \  argument
99       if (!logger || !logger->level) break;          \
104       logger->level(logger->priv, _msg);             \
108 #define clc_error(logger, fmt, ...) clc_log(logger, error, fmt, ##__VA_ARGS__)  argument
109 #define clc_warning(logger, fmt, ...) clc_log(logger, warning, fmt, ##__VA_ARGS__)  argument