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Subject: Re: PATCH: zle -f from inside widget to set flags and make yank start/end zle params writable
From: "Jun T." <takimoto-j@kba.biglobe.ne.jp>
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Date: Fri, 2 Oct 2015 00:33:09 +0900
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I'm getting the following warning:

zle_thingy.c:663:1: warning: control may reach end of non-void function =
[-Wreturn-type]
}
^

Maybe return 1 for invalid flag, and 0 otherwise.