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What's the simplest way to test whether a number is a power of 2 in C++?
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        edited Dec 2 '15 at 3:59
    
    
        
    
    
        jbranchaud
        
            5,29977 gold badges3939 silver badges6969 bronze badges
        
    
            
            
                
    
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							搭建高可用mongodb集群(四)—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
					... 1T 数据,压力太大了!在分给4个机器后,每个机器都是256G,则分摊了集中在一台机器的压力。也许有人问一台机器硬盘加大一点不就可以了,为什么要分给四台机器呢?不要光想到存储空间,实际运行的数据库还有硬盘的读写...				
				
				
							Scala 2.8 breakOut
					In Scala  2.8 , there is an object in  scala.collection.package.scala :
                    
                    
                        
                            
                                
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							How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
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Update:
You can now just run the following command from your terminal:
xcode-select --install...				
				
				
							Git flow release branches and tags - with or without “v” prefix
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        edited May 23 '17 at 10:31
    
    
        
    
    
        Community♦
        
            111 silver badge
        
    
            
            
                
    
        answered Feb 7 '14 at 23:52
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							Math.random() explanation
					...  return (int)(Math.random() * range) + min;
}
Output of randomWithRange(2, 5) 10 times:
5
2
3
3
2
4
4
4
5
4
The bounds are inclusive, ie [2,5], and min must be less than max in the above example.
EDIT: If someone was going to try and be stupid and reverse min and max, you could change the cod...				
				
				
							How do I read CSV data into a record array in NumPy?
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        edited Mar 2 '12 at 15:05
    
    
        
    
    
        Mike Graham
        
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							Pandas convert dataframe to array of tuples
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How about:
subset = data_set[['data_date', 'data_1', 'data_2']]
tuples = [tuple(x) for x in s...				
				
				
							Sort Dictionary by keys
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let dictionary = [
    "A" : [1, 2],
    "Z" : [3, 4],
    "D" : [5, 6]
]
let sortedKeys = Arra...				
				
				
							