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How are GCC and g++ bootstrapped?

...ilt (optional) repeat step 2 for verification purposes. This process is called bootstrapping. It tests the compiler's capability of compiling itself and makes sure that the resulting compiler is built with all the optimizations that it itself implements. EDIT: Drew Dormann, in the comments, point...
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Call a python function from jinja2

I am using jinja2, and I want to call a python function as a helper, using a similar syntax as if I were calling a macro. jinja2 seems intent on preventing me from making a function call, and insists I repeat myself by copying the function into a template as a macro. ...
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django admin - add custom form fields that are not part of the model

... ModelForm class and then declare your extra fields inside that as you normally would. I've also given an example of how you might use these values in form.save(): from django import forms from yourapp.models import YourModel class YourModelForm(forms.ModelForm): extra_field = forms.CharFiel...
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How to find the operating system version using JavaScript?

... If you list all of window.navigator's properties using console.log(navigator); You'll see something like this # platform = Win32 # appCodeName = Mozilla # appName = Netscape # appVersion = 5.0 (Windows; en-US) # language = en-US # ...
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How do I unit test web api action method when it returns IHttpActionResult?

...red Nov 12 '13 at 18:46 Kiran ChallaKiran Challa 52.2k1212 gold badges165165 silver badges148148 bronze badges ...
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How to make rounded percentages add up to 100%

...55310199789695, 8.780231335436383, 8.04416403785489, 0]. The last one logically returns -1. I thought of the following solution really quickly but there's probably something better: jsfiddle.net/0o75bw43/1 – Cruclax Aug 5 '16 at 16:39 ...
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Swift: #warning equivalent

...builds clean in production, but I get a warning in development that essentially reminds me I'm in dev mode - using different URLs, timeouts, other settings etc. Arie's suggestion above lets me do this, your technique just flags everything. That said, this technique has its use for sure so I up voted...
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is there a css hack for safari only NOT chrome?

...3 (early 2020 Update) * PLEASE PLEASE -- If you are having trouble, and really want to get help or help others by posting a comment about it, Post Your Browser and Device (MacBook/IPad/etc... with both browser and OS version numbers!) Claiming none of these work is not accurate (and actually not ev...
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Is it expensive to use try-catch blocks even if an exception is never thrown?

... try has almost no expense at all. Instead of doing the work of setting up the try at runtime, the code's metadata is structured at compile time such that when an exception is thrown, it now does a relatively expensive operation of walking up the stack an...
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Extracting text OpenCV

... For some cards the bounding box does not enclose all of the text, such as half a letter getting cut off. Such as this card: i.imgur.com/tX3XrwH.jpg How can I extend every bounding bounding boxes height and width by n? Thanks for the solution it works great! ...