Topic: SV: In-class definition of pure virtual functions
Author: "Henrik Vallgren" <henrik.vallgren@streamspace.com>
Date: Wed, 22 Apr 2015 13:40:39 +0200
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Evidently, I was wrong. The closest I=E2=80=99ve ever come to this was a=20
software that emitted a =E2=80=9Cpure virtual function called=E2=80=9D-exce=
ption.
//Henrik
=20
Fr=C3=A5n: Columbo [mailto:r.hl@gmx.net]=20
Skickat: den 22 april 2015 13:32
Till: std-proposals@isocpp.org
=C3=84mne: Re: [std-proposals] In-class definition of pure virtual function=
s
=20
Am Mittwoch, 22. April 2015 12:11:54 UTC+1 schrieb HenrikVallgren:
Hi,
=20
I don=E2=80=99t see the point in this: the =E2=80=9D=3D0=E2=80=9D part says=
that you will not provide an=20
implementation for this class and then you add an empty one?
=20
Andrey described it pretty well: The =3D0 part indicates that this is a pur=
e virtual function. =C2=A710.4/2:
A pure virtual function need be defined only if called with, or as if with =
(12.4), the qualified-id syntax (5.1).
=20
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</o:shapelayout></xml><![endif]--></head><body lang=3DSV link=3Dblue vlink=
=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span lang=3DEN-US=
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
'>Evidently, I was wrong. The closest I=E2=80=99ve ever come to this was a =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US style=3D'font=
-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>software tha=
t emitted a =E2=80=9Cpure virtual function called=E2=80=9D-exception.<o:p><=
/o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>//Henrik<o:p></o:p=
></span></p><p class=3DMsoNormal><span lang=3DEN-US style=3D'font-size:11.0=
pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></spa=
n></p><p class=3DMsoNormal><b><span style=3D'font-size:10.0pt;font-family:"=
Tahoma","sans-serif"'>Fr=C3=A5n:</span></b><span style=3D'font-size:10.0pt;=
font-family:"Tahoma","sans-serif"'> Columbo [mailto:r.hl@gmx.net] <br><b>Sk=
ickat:</b> den 22 april 2015 13:32<br><b>Till:</b> std-proposals@isocpp.org=
<br><b>=C3=84mne:</b> Re: [std-proposals] In-class definition of pure virtu=
al functions<o:p></o:p></span></p><p class=3DMsoNormal><o:p> </o:p></p=
><div><p class=3DMsoNormal>Am Mittwoch, 22. April 2015 12:11:54 UTC+1 schri=
eb HenrikVallgren:<o:p></o:p></p><div><div><p class=3DMsoNormal>Hi,<o:p></o=
:p></p></div><div><p class=3DMsoNormal><o:p> </o:p></p></div><div><p c=
lass=3DMsoNormal>I don=E2=80=99t see the point in this: the =E2=80=9D=3D0=
=E2=80=9D part says that you will not provide an <o:p></o:p></p></div>=
<div><p class=3DMsoNormal>implementation for this class and then you add an=
empty one?<o:p></o:p></p></div></div><div><p class=3DMsoNormal> <o:p>=
</o:p></p></div><div><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'>An=
drey described it pretty well: The =3D0 part indicates that this is a <i>pu=
re </i>virtual function. =C2=A710.4/2:<o:p></o:p></p><p class=3DMsoNormal>A=
pure virtual function need be defined only if called with, or as if with (=
12.4), the <i>qualified-id</i> syntax (5.1).<o:p></o:p></p><p class=3DMsoNo=
rmal><o:p> </o:p></p></div></div><p class=3DMsoNormal>-- <br><br>--- <=
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