ref: 4605adef59010fa2ed74b862e8169baf73680bf4
dir: /fns.h/
void *emalloc(ulong); void *erealloc(void*, ulong); Image *eallocimage(Display*, Rectangle, ulong, int, ulong); Memimage *eallocmemimage(Rectangle, ulong); void qball(Rectangle, Point, Point, Quaternion*, Quaternion*);