rb_enc_left_char_head 2256 io.c           		pp = rb_enc_left_char_head(s, p, e, enc);
rb_enc_left_char_head 2264 io.c           		pp = rb_enc_left_char_head(s, p-1, p, enc);
rb_enc_left_char_head 5547 string.c       	    p0 = rb_enc_left_char_head(s, p, pend, enc);
rb_enc_left_char_head 5845 string.c       		pp = rb_enc_left_char_head(p, e-rb_enc_mbminlen(enc), e, enc);
rb_enc_left_char_head 5851 string.c       		    pp = rb_enc_left_char_head(p, pp, e, enc);
rb_enc_left_char_head 5914 string.c       	if (rb_enc_left_char_head(p, pp, e, enc) != pp)
rb_enc_left_char_head 6719 string.c       	if (rb_enc_left_char_head(p, s, e, enc) != s)