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lexers vs parsers
Are lexers and parsers really that different in theory?
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Does Java support default parameter values?
I came across some Java code that had the following structure:
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Is std::unique_ptr required to know the full definition of T?
I have some code in a header that looks like this:
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Adding 'serial' to existing column in Postgres
I have a small table (~30 rows) in my Postgres 9.0 database with an integer ID field (the primary key) which currently contains unique sequential integers starting at 1, but which was not created using the 'serial' keyword.
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What does the “yield” keyword do?
What is the use of the yield keyword in Python, and what does it do?
42 Answers
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Is there a “standard” format for command line/shell help text?
If not, is there a de facto standard? Basically I'm writing a command line help text like so:
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What is the copy-and-swap idiom?
What is this idiom and when should it be used? Which problems does it solve? Does the idiom change when C++11 is used?
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What are the uses for Cross Join?
A cross join performs a cartesian product on the tuples of the two sets.
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Hidden features of Scala
What are the hidden features of Scala that every Scala developer should be aware of?
28 Answers
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How to store a list in a column of a database table
So, per Mehrdad's answer to a related question , I get it that a "proper" database table column doesn't store a list. Rather, you should create another table that effectively holds the elements of said list and then link to it directly or through a junction table. However, the type of list I wa...