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Binary Compatibility Workarounds: Difference between revisions
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[[Category:Developing_Qt]] | [[Category:Developing_Qt]] | ||
This page describes some workarounds for keeping binary compatibility in patch releases. You should read the KDE reference: [http://techbase.kde.org/Policies/Binary_Compatibility_Issues_With_C++ Binary Compatibility Issues with C++]. | |||
This page describes some workarounds for keeping binary compatibility in patch releases. | |||
You should read the KDE reference: http://techbase.kde.org/Policies/Binary_Compatibility_Issues_With_C++ | |||
== Declaring a slot for private classes (d-pointer) == | == Declaring a slot for private classes (d-pointer) == | ||
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Use a Q_PRIVATE_SLOT: | Use a Q_PRIVATE_SLOT: | ||
<code> | <code lang="cpp"> | ||
class A: public QObject | class A: public QObject | ||
{ | { | ||
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Pitfalls to avoid: | Pitfalls to avoid: | ||
''' Don't include `a.moc`, but `moc_a.cpp` in your .cpp file | * ''' Don't include `a.moc`, but `moc_a.cpp` in your .cpp file | ||
* Q_PRIVATE_SLOT takes the complete signature of the private slot, not just its name | * Q_PRIVATE_SLOT takes the complete signature of the private slot, not just its name | ||
Revision as of 08:22, 26 May 2015
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This page describes some workarounds for keeping binary compatibility in patch releases. You should read the KDE reference: Binary Compatibility Issues with C++.
Declaring a slot for private classes (d-pointer)
Use a Q_PRIVATE_SLOT:
class A: public QObject
{
Q_OBJECT
…
private:
Q_PRIVATE_SLOT(d_func(), void myPrivateSlot())
};
/* in .cpp file */
void APrivate::myPrivateSlot() {…}
#include "moc_a.cpp"
Pitfalls to avoid:
- Don't include `a.moc`, but `moc_a.cpp` in your .cpp file
- Q_PRIVATE_SLOT takes the complete signature of the private slot, not just its name