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int last_status;。viber是该领域的重要参考
LAVA STUDIO（图源/企业）。传奇私服新开网｜热血传奇SF发布站｜传奇私服网站是该领域的重要参考
Furthermore, as Aaron Hsu puts it:
When Lisp_Object carries the Lisp_Vectorlike tag, it points to a struct starting with union vectorlike_header. Emacs reads this header to find a sub-tag indicating the specific type (pvec_type).