al_get_path_drive(3)                                      al_get_path_drive(3)

NAME
       al_get_path_drive - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              const char *al_get_path_drive(const ALLEGRO_PATH *path)


DESCRIPTION
       Return the drive letter on a path, or the empty string if there is
       none.

       The "drive letter" is only used on Windows, and is usually a string
       like "c:", but may be something like "\\Computer Name" in the case of
       UNC (Uniform Naming Convention) syntax.

Allegro reference manual                                  al_get_path_drive(3)