Allegro 5 api
#include <allegro5/allegro.h> bool al_ustr_rtrim_ws(ALLEGRO_USTR *us)
Remove trailing ("right") whitespace characters from a string, as defined by the C function isspace().
Returns true on success, or false on error.
al_ustr_ltrim_ws(3alleg5), al_ustr_trim_ws(3alleg5)