logger.c

A simple logging library implemented in C99 - forked from https://github.com/rxi/log.c

Usage

logger.c and logger.h should be dropped into an existing project and compiled along with it. The library provides 6 function-like macros for logging:

log_trace(const char *fmt, ...);
log_debug(const char *fmt, ...);
log_info(const char *fmt, ...);
log_warn(const char *fmt, ...);
log_error(const char *fmt, ...);
log_fatal(const char *fmt, ...);

Each function takes a printf format string followed by additional arguments:

log_trace("Hello %s", "world")

Resulting in a line with the given format printed to stderr:

 May 27 08:15:25 TRACE src/main.c:11: Hello world

Initializing the logger

The logger requires logger_init() to be ran before logging starts. It is also used to set the log level and desired log output location.

logger_init(LOG_WARN, stderr);

LOG_USE_COLOR

If the library is compiled with -DLOG_USE_COLOR ANSI color escape codes will be used when printing.

License

This library is free software; you can redistribute it and/or modify it under the terms of the MIT license. See LICENSE for details.