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How can I check if multiplying two numbers in Java will cause an overflow?
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P.S. Sorr, I think I need an extra bit set in the AND mask (0xffffffff80000000L)-- it's a bit late, but you get the idea...
– Neil Coffey
Nov 2 '09 at 4:27
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minimum double value in C/C++
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gcc's manual for -ffast-math says "Sets -fno-math-errno, -funsafe-math-optimizations, -ffinite-math-only, -fno-rounding-math, -fno-signaling-nans and -fcx-limited-range This option is not turned on by any -O option since it can result in incorrect output for p...
How can I convert immutable.Map to mutable.Map in Scala?
...he new copy to save time, or you double your access times by reading changesets instead of the original map. Which one performs best probably depends on your use case.
– Rex Kerr
Feb 18 '11 at 16:00
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How to get file size in Java [duplicate]
I used this code to instantiate a File object:
3 Answers
3
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Read a file one line at a time in node.js?
I am trying to read a large file one line at a time. I found a question on Quora that dealt with the subject but I'm missing some connections to make the whole thing fit together.
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Add unique constraint to combination of two columns
...o.BlockDuplicatesYourTable
ON dbo.YourTable
INSTEAD OF INSERT
AS
BEGIN
SET NOCOUNT ON;
IF NOT EXISTS (SELECT 1 FROM inserted AS i
INNER JOIN dbo.YourTable AS t
ON i.column1 = t.column1
AND i.column2 = t.column2
)
BEGIN
INSERT dbo.YourTable(column1, column2, ...)
SEL...
Explicitly select items from a list or tuple
I have the following Python list (can also be a tuple):
8 Answers
8
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RegEx to parse or validate Base64 data
...ge we can use this regex
/^data:image/(?:gif|png|jpeg|bmp|webp)(?:;charset=utf-8)?;base64,(?:[A-Za-z0-9]|[+/])+={0,2}
private validBase64Image(base64Image: string): boolean {
const regex = /^data:image\/(?:gif|png|jpeg|bmp|webp)(?:;charset=utf-8)?;base64,(?:[A-Za-z0-9]|[+/])+={0,2}/;
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Why declare unicode by string in python?
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Thanks for the explanation! I'll set this as accepted since is the most complete one :)
– Oscar Carballal
Jul 3 '10 at 4:38
2
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How does the algorithm to color the song list in iTunes 11 work? [closed]
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Notes
The algorithm can be applied very generally. I tweaked the above settings and tolerance values to the point where they work to produce generally correct colors for ~80% of the album covers I tested. A few edge cases occur when DominantColorsNew doesn't find two colors to return for the h...