> Why Coverity claims this? > 4. access_dbuff_in_call: Calling Polygon indexes array (POINT *)points with index count. > Polygon expect param const POINT *apt; > and IUP uses array type int?
Yes, it is. Best, Scuri Em qui., 16 de jul. de 2020 às 15:44, Ranier Vilela <ranier_...@hotmail.com> escreveu: > De: Antonio Scuri <antonio.sc...@gmail.com> > Enviado: quinta-feira, 16 de julho de 2020 18:33 > Para: IUP discussion list. > Assunto: Re: [Iup-users] IUP assorted issues (part IV) > > >> 1. Memory corruption at src/iup_draw.c > >> variable points has size of 6, but call Polygon with only size 3. > >> iupdrvDrawPolygon call msvc Polygon function > > > Count is the number of points, not the size of the array. > Why Coverity claims this? > 4. access_dbuff_in_call: Calling Polygon indexes array (POINT *)points > with index count. > > See this example: > http://www.functionx.com/visualc/gdi/polygons.htm > > CPoint Pt[7]; > Pt[0] = CPoint(20, 50); > Pt[1] = CPoint(180, 50); > Pt[2] = CPoint(180, 20); > Pt[3] = CPoint(230, 70); > Pt[4] = CPoint(180, 120); > Pt[5] = CPoint(180, 90); > Pt[6] = CPoint(20, 90); > pDC->Polygon(Pt, 7); // Msvc Polygon call function > > Maybe this issue is: > https://docs.microsoft.com/en-us/windows/win32/api/wingdi/nf-wingdi-polygon > > Polygon expect param const POINT *apt; > and IUP uses array type int? > > >> 2. Memory corruption at srcglcontrols/iup_gldraw.c > >> variable points has size of 6, but call Polygon with only size 3. > >> iupGLDrawPolygon call msvc Polygon function > > > Same > > >> 3. Possible division by zero at srcglcontrols/iup_gldraw.c > >> variable sb_range can be zero > > >If range is zero the scrollbar is not displayed, so that function is > never called. But I added a test. > Thanks. > > regards, > Ranier Vilela > > _______________________________________________ > Iup-users mailing list > Iup-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/iup-users >
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