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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
I just started using Qt and noticed that all the example class definitions have the macro Q_OBJECT as the first line. What is the purpose of this preprocessor macro?
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How to modify a global variable within a function in bash?
...t should work in bash 3.x I hope. I am not completely sure due to printf %q - this might be a bash 4 feature.
Summary
Your example can be modified as follows to archive the desired effect:
# Add following 4 lines:
_passback() { while [ 1 -lt $# ]; do printf '%q=%q;' "$1" "${!1}"; shift; done; r...
builder for HashMap
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Not quite a builder, but using an initializer:
Map<String, String> map = new HashMap<String, String>() {{
put("a", "1");
put("b", "2");
}};
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How to exit a 'git status' list in a terminal?
...tput into your $PAGER program, likely less or more. In either case, typing q should get you out.
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Solving “The ObjectContext instance has been disposed and can no longer be used for operations that
...an use eager loading of navigation properties which you will need later:
IQueryable<MemberLoan> query = db.MemberLoans.Include(m => m.Membership);
That will pre-load all memberships and lazy-loading will not be used. For details see Loading Related Entities article on MSDN.
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How to implement a queue with three stacks?
I came across this question in an algorithms book ( Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne).
5 Answ...
How to avoid type safety warnings with Hibernate HQL results?
For example I have such query:
15 Answers
15
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What's valid and what's not in a URI query?
I've been Googling this back and forth reading RFCs and SO questions trying to crack this, but I still don't got jack.
7 An...
What is Vim recording and how can it be disabled?
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You start recording by q<letter>
and you can end it by typing q again.
Recording is a really useful feature of Vim.
It records everything you type. You can then replay it simply by typing @<letter>.
Record search, movement, replacemen...
How do I mock a service that returns promise in AngularJS Jasmine unit test?
...myService'));
beforeEach(inject( function(_myService_, myOtherService, $q){
myService = _myService_;
spyOn(myOtherService, "makeRemoteCallReturningPromise").and.callFake(function() {
var deferred = $q.defer();
deferred.resolve('Remote call result');
return deferred...