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What does ||= (or-equals) mean in Ruby?
What does the following code mean in Ruby?
23 Answers
23
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Modulo operation with negative numbers
In a C program i was trying the below operations(Just to check the behavior )
12 Answers
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Ruby: How to turn a hash into HTTP parameters?
... from the gem.
Julien, your self-answer is a good one, and I've shameless borrowed from it, but it doesn't properly escape reserved characters, and there are a few other edge cases where it breaks down.
require "addressable/uri"
uri = Addressable::URI.new
uri.query_values = {:a => "a", :b =>...
Java rounding up to an int using Math.ceil
...57/32 = 4.90625 , I need to round up, I've looked around and this seems to be the right method.
15 Answers
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Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
...>> from collections import Counter
>>> A = Counter({'a':1, 'b':2, 'c':3})
>>> B = Counter({'b':3, 'c':4, 'd':5})
>>> A + B
Counter({'c': 7, 'b': 5, 'd': 5, 'a': 1})
Counters are basically a subclass of dict, so you can still do everything else with them you'd norma...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...址：http: www gii upv es tlsf 官网的代码应该是主分支，github上的几个仓库更新不是那么及时。英文好的同学请直接看论文《TLSF: a New Dynamic Memory Allocator f 官网地址：http://www.gii.upv.es/tlsf/
官网的代码应该是主分支，github上的几个...
Comparing two NumPy arrays for equality, element-wise
...o compare two NumPy arrays for equality (where equality is defined as: A = B iff for all indices i: A[i] == B[i] )?
6 Ans...
Oracle “(+)” Operator
...hecking some old SQL Statements for the purpose of documenting them and probably enhancing them.
4 Answers
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C#位运算符（C#按位与、按位或 等） - 更多技术 - 清泛网 - 专注C/C++及内核技术
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~a
&
位逻辑与运算
2
a & b
|
位逻辑或运算
2
a | b
^
位逻辑异或运算
2
a ^ b
<<
位左移运算
2
a<<4
>>
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Does delete on a pointer to a subclass call the base class destructor?
... A is instantiated and stored as a pointer field in another class ( class B .
11 Answers
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