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

       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.

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

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

Allegro                                           version 4.4.3                                al_trace(3alleg4)

#include<allegro.h>voidal_trace(constchar*msg,...);