log.h

/* evilwm - Minimalist Window Manager for X
 * Copyright (C) 1999-2015 Ciaran Anscomb <evilwm@6809.org.uk>
 * see README for license and other details. */

#ifndef __LOG_H__
#define __LOG_H__

#if defined(STDIO) || defined(DEBUG) || defined(XDEBUG)
# include <stdio.h>
#endif

#ifdef DEBUG
extern int log_indent;
#endif

#ifdef STDIO
# define LOG_INFO(...) printf(__VA_ARGS__);
# define LOG_ERROR(...) fprintf(stderr, __VA_ARGS__);
#else
# define LOG_INFO(...)
# define LOG_ERROR(...)
#endif

#ifdef DEBUG
# define LOG_INDENT() do { int ii; for (ii = 0; ii < log_indent; ii++) fprintf(stderr, "   "); } while (0)
# define LOG_ENTER(...) do { LOG_INDENT(); log_indent++; fprintf(stderr, __VA_ARGS__); fprintf(stderr, " at %s:%d\n", __FILE__, __LINE__); } while (0)
# define LOG_LEAVE() do { if (log_indent > 0) log_indent--; } while (0)
# define LOG_DEBUG(...) do { LOG_INDENT(); fprintf(stderr, __VA_ARGS__); } while (0)
# define LOG_DEBUG_(...) fprintf(stderr, __VA_ARGS__)
#else
# define LOG_ENTER(...)
# define LOG_LEAVE(...)
# define LOG_DEBUG(...)
# define LOG_DEBUG_(...)
#endif

#ifdef XDEBUG
# define LOG_XENTER(...) LOG_ENTER(__VA_ARGS__)
# define LOG_XLEAVE(...) LOG_LEAVE(__VA_ARGS__)
# define LOG_XDEBUG(...) LOG_DEBUG(__VA_ARGS__)
# define LOG_XDEBUG_(...) LOG_DEBUG_(__VA_ARGS__)
#else
# define LOG_XENTER(...)
# define LOG_XLEAVE(...)
# define LOG_XDEBUG(...)
# define LOG_XDEBUG_(...)
#endif

#endif  /* __LOG_H__ */