al_get_first_config_section - Allegro 5 API

       Returns the name of the first section in the given config file.  Usually this will return an empty string
       for  the  global  section,  even  it  contains  no values.  The iterator parameter will receive an opaque
       iterator which is used by al_get_next_config_section(3alleg5) to iterate over the remaining sections.

       The returned string and the iterator are only  valid  as  long  as  no  change  is  made  to  the  passed
       ALLEGRO_CONFIG.

       al_get_first_config_section - Allegro 5 API

al_get_next_config_section(3alleg5)

Allegro reference manual                                                    al_get_first_config_section(3alleg5)

              #include <allegro5/allegro.h>

              char const *al_get_first_config_section(ALLEGRO_CONFIG const *config,
                 ALLEGRO_CONFIG_SECTION **iterator)