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How to avoid annoying error “declared and not used”
I'm learning Go but I feel it is a bit annoying that when compiling, I should not leave any variable or package unused.
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Mathematical functions in Swift
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As other noted you have several options. If you want only mathematical functions. You can import only Darwin.
import Darwin
If you want mathematical functions and other standard classes and functions. You can import Foundation.
import F...
When to use IComparable Vs. IComparer
I'm trying to figure out which of these interfaces I need to implement. They both essentially do the same thing. When would I use one over the other?
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ImportError: Cannot import name X
I have four different files named: main, vector, entity and physics. I will not post all the code, just the imports, because I think that's where the error is. (If you want, I can post more)
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What is the apply function in Scala?
... contrived unmarshalling and verbing nouns ( an AddTwo class has an apply that adds two!) examples.
3 Answers
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How to print (using cout) a number in binary form?
I'm following a college course about operating systems and we're learning how to convert from binary to hexadecimal, decimal to hexadecimal, etc. and today we just learned how signed/unsigned numbers are stored in memory using the two's complement (~number + 1).
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How to compare Lists in Unit Testing
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To make assertions about collections, you should use CollectionAssert:
CollectionAssert.AreEqual(expected, actual);
List<T> doesn't override Equals, so if Assert.AreEqual just calls Equals, it will end up using reference equality.
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菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...以是菜单项索引，菜单项ID，具体由nFlags参数指明，为MF_BYPOSITION，则以菜单项索引指明，
为MF_BYCOMMAND则第一个参数nPosition是菜单项ID号。pBmpUnchecked未被检测时显示的位图（正常时），pBmpChecked检测时显示的图片（就是菜单项被...
What does the exclamation mark mean in a Haskell declaration?
I came across the following definition as I try to learn Haskell using a real project to drive it. I don't understand what the exclamation mark in front of each argument means and my books didn't seem to mention it.
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How do I auto size a UIScrollView to fit its content
Is there a way to make a UIScrollView auto-adjust to the height (or width) of the content it's scrolling?
21 Answers
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