Bug#64196: marked as done (g++: class method overload bug (qt related))
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and subject line bug in code, not a gcc bug
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Received: (at submit) by bugs.debian.org; 16 May 2000 07:10:40 +0000
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From: Ulf Jaenicke-Roessler <ujr@physik.phy.tu-dresden.de>
Subject: g++: class method overload bug (qt related)
To: submit@bugs.debian.org
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Date: Tue, 16 May 2000 09:10:00 +0200
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Package: g++
Version: 1:2.95.2-9
Severity: normal
Hi,
I think this is a bug, but OTOH I'm not that experienced with C++, so YMMV.
Also, I think that the bug subject is not too good, but I could not come up
with a better one - sorry.
I used
c++ -I /usr/include/qt -c t.cpp
to compile the following little program with QT2:
#include "qapplication.h"
int main(void) {
QColorGroup normal( QColor( QRgb(0) ));
QColorGroup disabled( QColor( QRgb(8421504) ));
QColorGroup active( QColor( QRgb(0) ));
QPalette palette( normal, disabled, active );
return 0;
}
I receive the following error message:
t.cpp: In function `int main()':
t.cpp:4: call of overloaded `QColor(int)' is ambiguous
/usr/include/qt/qcolor.h:72: candidates are: QColor::QColor(unsigned int, unsigned int = 0ffffffff)
/usr/include/qt/qcolor.h:73: QColor::QColor(const QString &)
/usr/include/qt/qcolor.h:74: QColor::QColor(const char *)
/usr/include/qt/qcolor.h:75: QColor::QColor(const QColor &) <near match>
t.cpp:5: redeclaration of `class QColor QRgb'
t.cpp:4: `class QColor QRgb' previously declared here
t.cpp:6: redeclaration of `class QColor QRgb'
t.cpp:5: `class QColor QRgb' previously declared here
t.cpp:6: call of overloaded `QColor(int)' is ambiguous
/usr/include/qt/qcolor.h:72: candidates are: QColor::QColor(unsigned int, unsigned int = 0ffffffff)
/usr/include/qt/qcolor.h:73: QColor::QColor(const QString &)
/usr/include/qt/qcolor.h:74: QColor::QColor(const char *)
/usr/include/qt/qcolor.h:75: QColor::QColor(const QColor &) <near match>
t.cpp:7: no matching function for call to `QPalette::QPalette (QColorGroup (&)(), QColorGroup (&)(), QColorGroup (&)())'
/usr/include/qt/qpalette.h:99: candidates are: QPalette::QPalette()
/usr/include/qt/qpalette.h:100: QPalette::QPalette(const QColor &)
/usr/include/qt/qpalette.h:101: QPalette::QPalette(const QColor &, const QColor &)
/usr/include/qt/qpalette.h:103: QPalette::QPalette(const QColorGroup &, const QColorGroup &, const QColorGroup &)
/usr/include/qt/qpalette.h:104: QPalette::QPalette(const QPalette &)
The error message goes away if I put additional parentheses around the
argument of the QColorGroup constructor, i.e.
QColorGroup normal( (QColor( QRgb(0) )));
QColorGroup disabled( (QColor( QRgb(8421504) )));
QColorGroup active( (QColor( QRgb(0) )));
QPalette palette( normal, disabled, active );
It would be nice, if that could be fixed.
Thanks,
Ulf
-- System Information
Debian Release: 2.2
Kernel Version: Linux pkfp20 2.2.15 #1 Fri May 5 11:16:20 CEST 2000 i686 unknown
Versions of the packages g++ depends on:
ii gcc 2.95.2-9 The GNU C compiler.
ii libc6 2.1.3-10 GNU C Library: Shared libraries and Timezone
ii libstdc++2.10- 2.95.2-9 The GNU stdc++ library (development files)
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Message-ID: <15164.50255.316784.984953@gargle.gargle.HOWL>
Date: Fri, 29 Jun 2001 20:09:19 +0200
To: 64196-done@bugs.debian.org
Subject: bug in code, not a gcc bug
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Delivered-To: 64196-done@bugs.debian.org
... as explained by Laurent Bonnaud <Laurent.Bonnaud@inpg.fr>
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