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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug modula2/108612] m2/gm2-libs-iso/ClientSocket.mod:229:1: error:
 control reaches end of non-void function [-Werror=return-type]
Date: Tue, 31 Jan 2023 09:19:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108612

--- Comment #1 from Martin Li=C5=A1ka <marxin at gcc dot gnu.org> ---
I think the warning is correct:

   196  PROCEDURE dorbytes (g: GenDevIF; d: DeviceTablePtr;
   197                      to: ADDRESS;
   198                      max: CARDINAL;
   199                      VAR actual: CARDINAL) : BOOLEAN ;
   200  VAR
   201     fd: INTEGER ;
   202     c : ClientInfo ;
   203     p : PtrToLoc ;
   204     i : INTEGER ;
   205  BEGIN
   206     c :=3D GetData(d, mid) ;
   207     WITH d^ DO
   208        IF max>0
   209        THEN <--- HERE we miss a return value for ELSE branch
   210           p :=3D to ;
   211           IF getPushBackChar(c, p^)
   212           THEN
   213              actual :=3D 1 ;
   214              RETURN( TRUE )
   215           END ;
   216           fd :=3D getClientSocketFd(c) ;
   217           i :=3D read(fd, p, max) ;
   218           IF i>=3D0
   219           THEN
   220              actual :=3D i ;
   221              RETURN( TRUE )
   222           ELSE
   223              errNum :=3D geterrno() ;
   224              actual :=3D 0 ;
   225              RETURN( FALSE )
   226           END
   227        END
   228     END
   229  END dorbytes ;=