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Test whether string is a valid integer
I'm trying to do something common enough: Parse user input in a shell script. If the user provided a valid integer, the script does one thing, and if not valid, it does something else. Trouble is, I haven't found an easy (and reasonably elegant) way of doing this - I don't want to have to pick it ap...
How to remove from a map while iterating it?
How do I remove from a map while iterating it? like:
6 Answers
6
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List columns with indexes in PostgreSQL
I would like to get the columns that an index is on in PostgreSQL.
23 Answers
23
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PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
This is what I've read so far about PDO::ATTR_EMULATE_PREPARES :
7 Answers
7
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mmap() vs. reading blocks
I'm working on a program that will be processing files that could potentially be 100GB or more in size. The files contain sets of variable length records. I've got a first implementation up and running and am now looking towards improving performance, particularly at doing I/O more efficiently since...
When should I make explicit use of the `this` pointer?
When should I explicitly write this->member in a method of
a class?
12 Answers
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Error: «Could not load type MvcApplication»
I am getting the error
41 Answers
41
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Visual Studio appears to randomly adopt American keyboard layout
Gah! This is really causing me hassle today. Suddenly without warning '@' (at symbol) and '"' (double quote) are trading places on my keyboard but ONLY in Visual Studio 2008!
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how do I initialize a float to its max/min value?
How do I hard code an absolute maximum or minimum value for a float or double? I want to search out the max/min of an array by simply iterating through and catching the largest.
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Why does Iterable not provide stream() and parallelStream() methods?
I am wondering why the Iterable interface does not provide the stream() and parallelStream() methods. Consider the following class:
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