| author | stechong |
| Wed, 20 Oct 2010 11:19:31 -0500 | |
| changeset 2165 | 2a7b5eccb0bc |
| parent 1641 | 2b3996fc09a1 |
| permissions | -rw-r--r-- |
|
1641
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
1 |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN"> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
2 |
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
3 |
<head> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
4 |
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
5 |
<meta http-equiv="Content-Style-Type" content="text/css" /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
6 |
<meta name="LASTUPDATED" content="06/17/05 11:09:43" /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
7 |
<title>warn_no_explicit_virtual</title> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
8 |
<link rel="StyleSheet" href="../../book.css" type="text/css"/> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
9 |
</head> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
10 |
|
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
11 |
<body> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
12 |
<h3>warn_no_explicit_virtual</h3> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
13 |
<p>Controls the issuing of warnings if an overriding function is not declared with a virtual keyword.</p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
14 |
<h5>Syntax</h5> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
15 |
<p class="code">#pragma warn_no_explicit_virtual on | off | reset |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
16 |
</p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
17 |
<h5>Targets</h5> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
18 |
All platforms.<br /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
19 |
<h5>Remarks</h5> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
20 |
<p>Listing 10.42 shows an example.</p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
21 |
<div class="listing"> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
22 |
<h4>Listing 10.42 Example of warn_no_explicit_virtual pragma</h4> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
23 |
<p>#pragma warn_no_explicit_virtual on </p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
24 |
<p>struct A {<br />
|
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
25 |
virtual void f();<br /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
26 |
};</p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
27 |
<p>struct B {<br />
|
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
28 |
void f(); // WARNING: override ‘B::f()’ is declared<br /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
29 |
// without ’virtual’ keyword<br /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
30 |
}<br /> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
31 |
</p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
32 |
</div> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
33 |
<p class="note"><strong>TIP</strong> This warning is not required by the ISO C++ standard, but can help you track down unwanted overrides.</p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
34 |
<p>This pragma does not correspond to any panel setting. To check this setting, use <span class="code">__option (warn_no_explicit_virtual)</span><span class="code"></span>, described in <a href="../symbols/sym_settings.htm">Checking Settings</a>. The default setting is <span class="code">off</span>.</p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
35 |
<p></p> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
36 |
<div id="footer">Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. <br>License: <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a></div> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
37 |
|
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
38 |
|
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
39 |
</body> |
|
2b3996fc09a1
revised x86 compiler dates, graphics, CSS, and release notes
fturovic <frank.turovich@nokia.com>
parents:
0
diff
changeset
|
40 |
</html> |