DOKK / manpages / debian 11 / allegro5-doc / al_set_path_extension.3alleg5.en
al_set_path_extension(3alleg5) al_set_path_extension(3alleg5)

al_set_path_extension - Allegro 5 API

#include <allegro5/allegro.h>
bool al_set_path_extension(ALLEGRO_PATH *path, char const *extension)
    

Replaces the extension of the path with the given one, i.e. replaces everything from the final dot (`.') character onwards, including the dot. If the filename of the path has no extension, the given one is appended. Usually the new extension you supply should include a leading dot.

Returns false if the path contains no filename part, i.e. the filename part is the empty string.

al_set_path_filename(3alleg5), al_get_path_extension(3alleg5)

Allegro reference manual