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What is the rationale for all comparisons returning false for IEEE754 NaN values?
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I was a member of the IEEE-754 committee, I'll try to help clarify things a bit.
First off, floating-point numbers are not real numbers, and floating-point arithmetic does not satisfy the axioms of real arithmetic. Trichotomy is not the only property of real arithmetic that does not hold for...
How do I rename all folders and files to lowercase on Linux?
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A concise version using the "rename" command:
find my_root_dir -depth -exec rename 's/(.*)\/([^\/]*)/$1\/\L$2/' {} \;
This avoids problems with directories being renamed before files and trying to move files into non-existing directories (e.g...
How to TryParse for Enum value?
... want to write a function which can validate a given value (passed as a string) against possible values of an enum . In the case of a match, it should return the enum instance; otherwise, it should return a default value.
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How to return PDF to browser in MVC?
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Return a FileContentResult. The last line in your controller action would be something like:
return File("Chap0101.pdf", "application/pdf");
If you are generating this PDF dynamically, it may be better to use a MemoryStream, and create the document in memory i...
Checking for a null int value from a Java ResultSet
In Java I'm trying to test for a null value, from a ResultSet, where the column is being cast to a primitive int type.
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vertical align middle in
... to keep the height of #abc div at 50px and text to align vertically in the middle of the div .
10 Answers
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What does “%.*s” mean in printf?
I got a code snippet in which there is a
4 Answers
4
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How can I use a search engine to search for special characters? [closed]
Google strips most special characters from the text they index so it's not a good tool for many troubleshooting-related tasks, such as finding out what the variable "$-" is in perl, or searching for error output that is loaded with special characters.
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Why use the yield keyword, when I could just use an ordinary IEnumerable?
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Using yield makes the collection lazy.
Let's say you just need the first five items. Your way, I have to loop through the entire list to get the first five items. With yield, I only loop through the first five items.
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Make Https call using HttpClient
I have been using HttpClient for making WebApi calls using C#. Seems neat & fast way compared to WebClient . However I am stuck up while making Https calls.
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