Allegro 5 api
#include <allegro5/allegro.h> bool al_ustr_remove_chr(ALLEGRO_USTR *us, int pos)
Remove the code point beginning at byte offset pos. Returns true on success. If pos is out of range or pos is not the beginning of a valid code point, returns false leaving the string unmodified.
Use al_ustr_offset(3alleg5) to find the byte offset for a code-points offset.
al_ustr_remove_range(3alleg5)