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Optional Parameters with C++ Macros

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Why is January month 0 in Java Calendar?

In java.util.Calendar , January is defined as month 0, not month 1. Is there any specific reason to that ? 16 Answers ...
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Sort a list by multiple attributes?

... can be a function that returns a tuple: s = sorted(s, key = lambda x: (x[1], x[2])) Or you can achieve the same using itemgetter (which is faster and avoids a Python function call): import operator s = sorted(s, key = operator.itemgetter(1, 2)) And notice that here you can use sort instead of...
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Convert an image to grayscale in HTML/CSS

... 731 Support for CSS filters has landed in Webkit. So we now have a cross-browser solution. img...
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What is Weak Head Normal Form?

... These expressions are all in normal form: 42 (2, "hello") \x -> (x + 1) These expressions are not in normal form: 1 + 2 -- we could evaluate this to 3 (\x -> x + 1) 2 -- we could apply the function "he" ++ "llo" -- we could apply the (++) (1 + 1, 2 + 2) ...
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Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0

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Why does parseInt(1/0, 19) return 18?

... 1294 The result of 1/0 is Infinity. parseInt treats its first argument as a string which means fi...
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CSS triangle custom border color

...atibility. I am trying to have the triangle have a white background with a 1px border (around the angled sides of the triangle) with color #CAD5E0. Is this possible? Here's what I have so far: ...
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How to count the number of true elements in a NumPy bool array

...: >>> import numpy as np >>> boolarr = np.array([[0, 0, 1], [1, 0, 1], [1, 0, 1]], dtype=np.bool) >>> boolarr array([[False, False, True], [ True, False, True], [ True, False, True]], dtype=bool) >>> np.sum(boolarr) 5 Of course, that is a bool...
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Fastest way to reset every value of std::vector to 0

... | edited Apr 21 '17 at 9:20 Qix - MONICA WAS MISTREATED 11.4k1212 gold badges7171 silver badges128128 bronze badges ...