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Delphi XE custom build target is always disabled
...uild .targets file that I've included in a Delphi XE project via the IDE and enabled it from the Project Manager's context menu. Although the file validates, it always gets disabled after I re-save the project file.
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Avoiding recursion when reading/writing a port synchronously?
...ind of "Buffer" function to receive all messages from assyncronous entries and process them as FIFO (first-in, first-out)?
This way you may keep the Assync characteristics of your ports and process them in sync mode.
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Transitivity of Auto-Specialization in GHC
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Short answers:
The question's key points, as I understand them, are the following:
"is the auto-specialization transitive?"
Should I only expect (+) to be specialized transitively with an explicit pragma?
(apparently intended) Is this a bug of GHC? Is it inconsistent...
RandomForestClassifier vs ExtraTreesClassifier in scikit learn
Can anyone explain the difference between the RandomForestClassifier and ExtraTreesClassifier in scikit learn. I've spent a good bit of time reading the paper:
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Techniques for Tracing Constraints
Here's the scenario: I've written some code with a type signature and GHC complains could not deduce x ~ y for some x and y . You can usually throw GHC a bone and simply add the isomorphism to the function constraints, but this is a bad idea for several reasons:
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c++ boost::multi_index composite keys efficiency - C/C++ - 清泛网 - 专注C/C++及内核技术
...ime poster! I'm playing around with the boost::multi_index container stuff and have a...Long time reader first time poster! I'm playing around with the boost::multi_index container stuff and have a rather in-depth question that hopefully a boost or C++ container expert might know (my knowledge in C+...
SQLite in Android How to update a specific row
I've been trying to update a specific row for a while now, and it seems that there are two ways to do this. From what I've read and tried, you can just use the:
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RegEx: Grabbing values between quotation marks
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([""']) match a quote; ((?=(\\?))\2.) if backslash exists, gobble it, and whether or not that happens, match a character; *? match many times (non-greedily, as to not eat the closing quote); \1 match the same quote that was use for opening.
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Printing without newline (print 'a',) prints a space, how to remove?
...aaaaaaaaaaaaaaaaaaa
If you want to do this in general, build up a string and then print it once. This will consume a bit of memory for the string, but only make a single call to print. Note that string concatenation using += is now linear in the size of the string you're concatenating so this will...
Calculating arithmetic mean (one type of average) in Python
Is there a built-in or standard library method in Python to calculate the arithmetic mean (one type of average) of a list of numbers?
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