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Characters allowed in a URL

... The characters allowed in a URI are either reserved or unreserved (or a percent character as part of a percent-encoding) http://en.wikipedia.org/wiki/Percent-encoding#Types_of_URI_characters says these are RFC 3986 unreserved characters ...
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Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit

... All error codes are on "CFNetwork Errors Codes References" on the documentation (link) A small extraction for CFURL and CFURLConnection Errors: kCFURLErrorUnknown = -998, kCFURLErrorCancelled = -999, kCFURLErrorBadU...
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How many GCC optimization levels are there?

..., the default if no optimization level is specified) -O1 (optimize minimally) -O2 (optimize more) -O3 (optimize even more) -Ofast (optimize very aggressively to the point of breaking standard compliance) -Og (Optimize debugging experience. -Og enables optimizations that do not interfere...
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What are the best JVM settings for Eclipse? [closed]

...jvm.dll -vmargs -Dosgi.requiredJavaVersion=1.6 -Declipse.p2.unsignedPolicy=allow -Xms128m -Xmx384m -Xss4m -XX:PermSize=128m -XX:MaxPermSize=384m -XX:CompileThreshold=5 -XX:MaxGCPauseMillis=10 -XX:MaxHeapFreeRatio=70 -XX:+CMSIncrementalPacing -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:+UseFast...
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Flask-SQLAlchemy import/context issue

...: # fields here pass And then in your application setup you can call init_app: # apps.application.py from flask import Flask from apps.members.models import db app = Flask(__name__) # later on db.init_app(app) This way you can avoid cyclical imports. This pattern does not necessitate ...
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Structure padding and packing

.... A note though - unaligned memory access is slower on architectures that allow it (like x86 and amd64), and is explicitly prohibited on strict alignment architectures like SPARC. share | improve t...
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To underscore or to not to underscore, that is the question

...other framework languages? For example since C# is case-sensitive you can call a field "foo" and the public property "Foo" and it works fine. ...
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The object 'DF__*' is dependent on column '*' - Changing int to double

Basically I got a table in my EF database with the following properties: 8 Answers 8 ...
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MySQL DROP all tables, ignoring foreign keys

Is there a nice easy way to drop all tables from a MySQL database, ignoring any foreign key constraints that may be in there? ...
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How does python numpy.where() work?

... How do they achieve internally that you are able to pass something like x > 5 into a method? The short answer is that they don't. Any sort of logical operation on a numpy array returns a boolean array. (i.e. __gt__, __lt__, etc all return boolea...