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Abusing the algebra of algebraic data types - why does this work?
...'algebraic' expression for algebraic data types looks very suggestive to someone with a background in mathematics. Let me try to explain what I mean.
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Byte order mark screws up file reading in Java
I'm trying to read CSV files using Java. Some of the files may have a byte order mark in the beginning, but not all. When present, the byte order gets read along with the rest of the first line, thus causing problems with string compares.
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Can someone explain __all__ in Python?
...seeing the variable __all__ set in different __init__.py files. Can someone explain what this does?
11 Answers
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List of Delphi language features and version in which they were introduced/deprecated
...onger uses ARC, it instead uses the default manual managed, which is the same as in the Windows compiler. This makes porting code from Windows or OSX to linux much easier.
Inline variables with automatic type inference
8 bit AnsiChar/AnsiString support in enable on Linux.
C++Builder and Delphi now u...
javascript: recursive anonymous function?
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You can give the function a name, even when you're creating the function as a value and not a "function declaration" statement. In other words:
(function foo() { foo(); })();
is a stack-blowing recursive function. Now, that said, you probably don't ma...
Creating a singleton in Python
...n, or for any religious wars, but to discuss how this pattern is best implemented in Python in such a way that is most pythonic. In this instance I define 'most pythonic' to mean that it follows the 'principle of least astonishment' .
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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...ckage, such as the server itself. This way you eliminiate potential environment-specific problems. Packageless servlets work only in specific Tomcat+JDK combinations and this should never be relied upon.
In case of a "plain" IDE project, the class needs to be placed in its package structure inside...
How do cache lines work?
...ich - for instance, on my Atom processor - brings in about 64 bytes at a time, whatever the size of the actual data being read.
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What is the purpose of a stack? Why do we need it?
...tion!
I've always wondered: what is the purpose of the stack?
I assume you mean the evaluation stack of the MSIL language, and not the actual per-thread stack at runtime.
Why is there a transfer from memory to stack or "loading?" On the other hand, why is there a transfer from stack to m...
What GRANT USAGE ON SCHEMA exactly do?
I'm trying to create for the first time a Postgres database, so this is probably a stupid question. I assigned basic read-only permissions to the db role that must access the database from my php scripts, and I have a curiosity: if I execute
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