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Object of custom type as dictionary key

What must I do to use my objects of a custom type as keys in a Python dictionary (where I don't want the "object id" to act as the key) , e.g. ...
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How to create a static library with g++?

Can someone please tell me how to create a static library from a .cpp and a .hpp file? Do I need to create the .o and the .a? I would also like to know how can I compile a static library in and use it in other .cpp code. I have header.cpp , header.hpp . I would like to create header.a . Test the...
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How does Activity.finish() work in Android?

Could someone provide a description of what happens when an Activity calls its finish() method? 4 Answers ...
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How to change the decimal separator of DecimalFormat from comma to dot/point?

I have this little crazy method that converts BigDecimal values into nice and readable Strings. 6 Answers ...
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How do you get AngularJS to bind to the title attribute of an A tag?

The intent is to have a product name appear in the tooltip of a thumbnail. Browsers do not create a tooltip from "ng-title" or "ng-attr-title." ...
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Can you use an alias in the WHERE clause in mysql?

I need to use an alias in the WHERE clause, but It keeps telling me that its an unknown column. Is there any way to get around this issue? I need to select records that have a rating higher than x. Rating is calculated as the following alias: ...
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What's the difference between @Secured and @PreAuthorize in spring security 3?

It's not clear for me what is the difference in spring security between : 5 Answers 5...
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What's the difference between CENTER_INSIDE and FIT_CENTER scale types?

I can't tell the difference between ImageView.ScaleType.CENTER_INSIDE and ImageView.ScaleType.FIT_CENTER . 3 Answers ...
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Simulate first call fails, second call succeeds

I want to use Mockito to test the (simplified) code below. I don't know how to tell Mockito to fail the first time, then succeed the second time. ...
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How to open a web server port on EC2 instance

I'm running a CherryPy web server at 0.0.0.0:8787 on an EC2 instance. 3 Answers 3 ...