debian man page for al_trace

al_trace(3alleg4)						  Allegro manual						 al_trace(3alleg4)

NAME
       al_trace - Outputs a debugging trace message. Allegro game programming library.

SYNOPSIS
       #include <allegro.h>

       void al_trace(const char *msg, ...);

DESCRIPTION
       Outputs	a  debugging  trace  message,  using a printf() format string given in ASCII. If you have installed a custom trace handler it uses
       that, or if the environment variable ALLEGRO_TRACE is set it writes into the file specified by the environment,	otherwise  it  writes  the
       message	to  "allegro.log"  in  the  current  directory.  You  will  usually want to use the TRACE() macro instead of calling this function
       directly.

SEE ALSO
       TRACE(3alleg4), al_assert(3alleg4), register_trace_handler(3alleg4)

Allegro 							   version 4.4.2						 al_trace(3alleg4)