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How do you calculate log base 2 in Java for integers?

...int log = 0; if( ( bits & 0xffff0000 ) != 0 ) { bits >>>= 16; log = 16; } if( bits >= 256 ) { bits >>>= 8; log += 8; } if( bits >= 16 ) { bits >>>= 4; log += 4; } if( bits >= 4 ) { bits >>>= 2; log += 2; } return log + ( bits &g...
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str performance in python

...() 0.25641703605651855 >>> Timer('"%s" % x', 'x=100').timeit() 0.2169809341430664 Do note that str is still slightly slower, as @DietrichEpp said, this is because str involves lookup and function call operations, while % compiles to a single immediate bytecode: >>> dis.dis(lambd...
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How to search for occurrences of more than one space between words in a line

... answered Sep 21 '10 at 9:16 AlexanderMPAlexanderMP 12.7k55 gold badges3636 silver badges5757 bronze badges ...
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What is the difference between .*? and .* regular expressions?

... | edited Nov 21 '16 at 7:43 Wiktor Stribiżew 431k2323 gold badges250250 silver badges334334 bronze badges ...
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STL or Qt containers?

... answered Nov 3 '09 at 16:40 rpgrpg 7,44822 gold badges3434 silver badges4242 bronze badges ...
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Very simple log4j2 XML configuration file using Console and File appender

... | edited Jan 18 '14 at 16:59 answered Jan 18 '14 at 16:53 ...
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Do you put unit tests in same project or another project?

... Jason JacksonJason Jackson 16.1k88 gold badges4343 silver badges7373 bronze badges ...
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Parse query string in JavaScript [duplicate]

... | edited Jun 16 '17 at 19:02 DanBrianWhite 4744 bronze badges answered Jan 19 '10 at 5:34 ...
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Why does IE9 switch to compatibility mode on my website?

... answered Sep 16 '10 at 12:25 bobincebobince 484k9999 gold badges611611 silver badges797797 bronze badges ...
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How do you round UP a number in Python?

.../11328980/5069869 – Bernhard Jan 8 '16 at 12:54 1 @TheEspinosa: Yes, python is definitely strongl...