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Double vs. BigDecimal?
... has a certain precision. Working with doubles of various magnitudes (say d1=1000.0 and d2=0.001) could result in the 0.001 being dropped alltogether when summing as the difference in magnitude is so large. With BigDecimal this would not happen.
The disadvantage of BigDecimal is that it's slower, a...
Why 0 is true but false is 1 in the shell?
The above will output 1 , which is contradictory with all other programming languages I know.
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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?
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Count work days between two dates
...CLARE @StartDate DATETIME
DECLARE @EndDate DATETIME
SET @StartDate = '2008/10/01'
SET @EndDate = '2008/10/31'
SELECT
(DATEDIFF(dd, @StartDate, @EndDate) + 1)
-(DATEDIFF(wk, @StartDate, @EndDate) * 2)
-(CASE WHEN DATENAME(dw, @StartDate) = 'Sunday' THEN 1 ELSE 0 END)
-(CASE WHEN DATENAME(d...
Position of least significant bit that is set
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Bit Twiddling Hacks offers an excellent collection of, er, bit twiddling hacks, with performan...
Fastest way to reset every value of std::vector to 0
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edited Apr 21 '17 at 9:20
Qix - MONICA WAS MISTREATED
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How to initialize an array's length in JavaScript?
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Ruby, remove last N characters from a string?
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How do you know what to test when writing unit tests? [closed]
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Ruby on Rails and Rake problems: uninitialized constant Rake::DSL
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