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Why is LINQ JOIN so much faster than linking with WHERE?
...se the DB knows how to perform a join. But it doesn't really make sense to compare it with the other approaches, since they work directly in memory (Linq to DataSet)
The query with multiple tables and a Where condition actually performs a cartesian product of all the tables, then filters the rows th...
Differences between Agda and Idris
...igh level features such as type classes, do notation, idiom brackets, list comprehensions, overloading and so on. Idris puts high level programming ahead of interactive proof, although because Idris is built on a tactic-based elaborator, there is an interface to a tactic based interactive theorem pr...
Android Studio marks R in red with error message “cannot resolve symbol R”, but build succeeds
...re marked in red with the error message "cannot resolve symbol R", but the compilation succeeds and the application runs. This is really annoying, as it blocks auto-completion and shows huge red waved lines all over my code.
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How to use QueryPerformanceCounter?
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@TonyD: MSDN documentation says: On a multiprocessor computer, it should not matter which processor is called. However, you can get different results on different processors due to bugs in the basic input/output system (BIOS) or the hardware abstraction layer (HAL). This code i...
Java Security: Illegal key size or default parameters?
..., download the unlimited jurisdiction policy files from www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=jcesdk
– quietmint
Dec 27 '13 at 21:13
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What are all codecs and formats supported by FFmpeg?
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How to include external Python code to use in other files?
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Worth noting that from Math import * is not recommended.
– naught101
Feb 10 '15 at 0:13
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How can I detect if a file is binary (non-text) in python?
...port mimetypes
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mime = mimetypes.guess_type(file)
It's fairly easy to compile a list of binary mime types. For example Apache distributes with a mime.types file that you could parse into a set of lists, binary and text and then check to see if the mime is in your text or binary list.
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Why can lambdas be better optimized by the compiler than plain functions?
...tion) Nicolai Josuttis states that lambdas can be better optimized by the compiler than plain functions.
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Does it make any sense to use inline keyword with templates?
Since templates are defined within headers and compiler is able to determine if inlining a function is advantageous, does it make any sense? I've heard that modern compilers know better when to inline a function and are ignoring inline hint.
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