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Header files for x86 SIMD intrinsics

...d normally just include <immintrin.h>. It includes everything. GCC and clang will stop you from using intrinsics for instructions you haven't enabled at compile time (e.g. with -march=native or -mavx2 -mbmi2 -mpopcnt -mfma -mcx16 -mtune=znver1 or whatever.) MSVC and ICC will let you use int...
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Compiler Ambiguous invocation error - anonymous method and method group with Func or Action

...roup to a compatible delegate type (emphasis added) is deeply misleading and unfortunate. I'll have a talk with Mads about getting the word "compatible" removed here. The reason this is misleading and unfortunate is because it looks like this is calling out to section 15.2, "Delegate compatibi...
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Are static class instances unique to a request or a server in ASP.NET?

...asses unique to each web request, or are they instantiated whenever needed and GCed whenever the GC decides to disposed of them? ...
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Rails respond_with: how does it work?

I've been reading here and there about how cool the respond_with method is in Rails 3. But I can't even find a reference to it in either the Rails APIs or by searching the source. Can anyone either explain to me how it works (what options you can use, etc) or point me to the place it's actually im...
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Difference between require, include, require_once and include_once?

... There are require and include_once as well. So your question should be... When should I use require vs. include? When should I use require_once vs. require The answer to 1 is described here. The require() function is identical to inc...
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What does 'synchronized' mean?

I have some questions regarding the usage and significance of the synchronized keyword. 17 Answers ...
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How can I view live MySQL queries?

... You can run the MySQL command SHOW FULL PROCESSLIST; to see what queries are being processed at any given time, but that probably won't achieve what you're hoping for. The best method to get a history without having to modify every application using ...
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Checking if a string is empty or null in Java [duplicate]

...ge Apache Commons StringUtils.isEmpty(str), which checks for empty strings and handles null gracefully. Example: System.out.println(StringUtils.isEmpty("")); // true System.out.println(StringUtils.isEmpty(null)); // true Google Guava also provides a similar, probably easier-to-read method: Stri...
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Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

... No. The HTML 5 spec mentions: The method and formmethod content attributes are enumerated attributes with the following keywords and states: The keyword get, mapping to the state GET, indicating the HTTP GET method. The GET method should only request and re...
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SQL - The conversion of a varchar data type to a datetime data type resulted in an out-of-range valu

...shing 103 is the datetime format. Refer this link for conversion formats and further reading. https://www.w3schools.com/sql/func_sqlserver_convert.asp share | improve this answer | ...