Qwt build error with Qt 4.6.0-tp1

**alex-krutikov** · 15th September 2009, 06:58

Hi,

I tryed to build Qwt from svn with Qt 4.6.0-tp1 (MinGW 3.4.5). The following build error happened:

Qt Code:

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../../include/QtCore/../../src/corelib/tools/qhash.h: In member function `typename QHash<K, V>::Node** QHash<K, V>::findNode(const Key&, uint*) const [with Key = qreal, T = QHashDummyValue]':
../../include/QtCore/../../src/corelib/tools/qhash.h:742:   instantiated from `typename QHash<K, V>::iterator QHash<K, V>::insert(const Key&, const T&) [with Key = qreal, T = QHashDummyValue]'
../../include/QtCore/../../src/corelib/tools/qset.h:175:   instantiated from `QSet<V>::const_iterator QSet<V>::insert(const T&) [with T = qreal]'
../../include/QtCore/../../src/corelib/tools/qset.h:309:   instantiated from `QSet<T> QList<T>::toSet() const [with T = qreal]'
qwt_valuelist.h:48:   instantiated from here
../../include/QtCore/../../src/corelib/tools/qhash.h:865: error: call of overloaded `qHash(const double&)' is ambiguous
../../include/QtCore/../../src/corelib/tools/qhash.h:63: note: candidates are: uint qHash(char)
../../include/QtCore/../../src/corelib/tools/qhash.h:64: note:                 uint qHash(uchar)
../../include/QtCore/../../src/corelib/tools/qhash.h:65: note:                 uint qHash(signed char)
../../include/QtCore/../../src/corelib/tools/qhash.h:66: note:                 uint qHash(ushort)
../../include/QtCore/../../src/corelib/tools/qhash.h:67: note:                 uint qHash(short int)
../../include/QtCore/../../src/corelib/tools/qhash.h:68: note:                 uint qHash(uint)
../../include/QtCore/../../src/corelib/tools/qhash.h:69: note:                 uint qHash(int)
../../include/QtCore/../../src/corelib/tools/qhash.h:71: note:                 uint qHash(ulong)
../../include/QtCore/../../src/corelib/tools/qhash.h:78: note:                 uint qHash(long int)
../../include/QtCore/../../src/corelib/tools/qhash.h:80: note:                 uint qHash(quint64)
../../include/QtCore/../../src/corelib/tools/qhash.h:87: note:                 uint qHash(qint64)
../../include/QtCore/../../src/corelib/tools/qhash.h:88: note:                 uint qHash(QChar)

../../include/QtCore/../../src/corelib/tools/qhash.h: In member function `typename QHash<K, V>::Node** QHash<K, V>::findNode(const Key&, uint*) const [with Key = qreal, T = QHashDummyValue]':
../../include/QtCore/../../src/corelib/tools/qhash.h:742:   instantiated from `typename QHash<K, V>::iterator QHash<K, V>::insert(const Key&, const T&) [with Key = qreal, T = QHashDummyValue]'
../../include/QtCore/../../src/corelib/tools/qset.h:175:   instantiated from `QSet<V>::const_iterator QSet<V>::insert(const T&) [with T = qreal]'
../../include/QtCore/../../src/corelib/tools/qset.h:309:   instantiated from `QSet<T> QList<T>::toSet() const [with T = qreal]'
qwt_valuelist.h:48:   instantiated from here
../../include/QtCore/../../src/corelib/tools/qhash.h:865: error: call of overloaded `qHash(const double&)' is ambiguous
../../include/QtCore/../../src/corelib/tools/qhash.h:63: note: candidates are: uint qHash(char)
../../include/QtCore/../../src/corelib/tools/qhash.h:64: note:                 uint qHash(uchar)
../../include/QtCore/../../src/corelib/tools/qhash.h:65: note:                 uint qHash(signed char)
../../include/QtCore/../../src/corelib/tools/qhash.h:66: note:                 uint qHash(ushort)
../../include/QtCore/../../src/corelib/tools/qhash.h:67: note:                 uint qHash(short int)
../../include/QtCore/../../src/corelib/tools/qhash.h:68: note:                 uint qHash(uint)
../../include/QtCore/../../src/corelib/tools/qhash.h:69: note:                 uint qHash(int)
../../include/QtCore/../../src/corelib/tools/qhash.h:71: note:                 uint qHash(ulong)
../../include/QtCore/../../src/corelib/tools/qhash.h:78: note:                 uint qHash(long int)
../../include/QtCore/../../src/corelib/tools/qhash.h:80: note:                 uint qHash(quint64)
../../include/QtCore/../../src/corelib/tools/qhash.h:87: note:                 uint qHash(qint64)
../../include/QtCore/../../src/corelib/tools/qhash.h:88: note:                 uint qHash(QChar)

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