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Is it safe to use -1 to set all bits to true?

... why is -1 guaranteed to be converted to all ones? Is that guaranteed by the standard? – jalf Apr 30 '09 at 22:11 9 ...
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Why does this assert throw a format exception when comparing structures?

...e expected and actual values themselves end up with braces in, after being converted to a string - which they do for Size. For example, your first size ends up being converted to: {Width=0, Height=0} So the second level of formatting is something like: string.Format("Expected: {Width=0, Height=0...
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T-SQL datetime rounded to nearest minute and nearest hours with using functions

... DECLARE @date As DateTime2 SET @date = '2007-09-22 15:07:38.850' SELECT CONVERT(VARCHAR(16), @date, 120) --2007-09-22 15:07 SELECT CONVERT(VARCHAR(13), @date, 120) --2007-09-22 15 share | improv...
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How to get UTC time in Python?

... What's the point of converting to a string and then back to a number when you can get the number directly? – Mark Ransom Mar 21 '17 at 18:09 ...
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Is the practice of returning a C++ reference variable evil?

...const&", what actually happens is that the return statement implicitly converts the temp, which is of type T, to type "T const&" as per 6.6.3.2 (a legal conversion but one which does not extend lifetime), and then the calling code initialises the ref of type "T const&" with the function'...
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How to display full (non-truncated) dataframe information in html when converting from pandas datafr

I converted a pandas dataframe to an html output using the DataFrame.to_html function. When I save this to a separate html file, the file shows truncated output. ...
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What is a JavaBean exactly?

...s to (and implies that it is capable of) "serialization" -- a process that converts an instance into a stream of bytes. Those bytes can be stored in files, sent over a network connection, etc, and have enough info to allow a JVM (at least, one that knows about the object's type) to reconstruct the ...
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Fast way to get image dimensions (not filesize)

...ng 20-60 KB read by "identify" for 5-335 MB images (I also tested against "convert" which showed all bytes being read). So it looks like "identify" is a good choice here (since it supports all popular formats and reads just the header). – coderforlife Feb 12 '1...
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How do I pass command-line arguments to a WinForms application?

...ibleTextRenderingDefault(false); Application.Run(new Form1(args[0], Convert.ToInt32(args[1]))); } } In windows form class, add a parameterized constructor which accepts the input values from Program class as like below. public Form1(string s, int i) { if (s != null &&...
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How can I calculate the difference between two dates?

...s of time, they do not have any associated time-zone information. When you convert a string to a date using e.g. an NSDateFormatter, the NSDateFormatter converts the time from the configured timezone. Therefore, the number of seconds between two NSDate objects will always be time-zone-agnostic. Fur...