Provided by: allegro5-doc_5.2.9.1+dfsg-1.1build4_all 

NAME
al_free - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro.h>
#define al_free(p) \
(al_free_with_context((p), __LINE__, __FILE__, __func__))
DESCRIPTION
Like free() in the C standard library, but the implementation may be overridden.
Additionally, on Windows, a memory block allocated by one DLL must be freed from the same DLL. In the
few places where an Allegro function returns a pointer that must be freed, you must use al_free(3alleg5)
for portability to Windows.
This is a macro.
SEE ALSO
al_malloc(3alleg5), al_free_with_context(3alleg5)
Allegro reference manual al_free(3alleg5)