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Why does Math.round(0.49999999999999994) return 1?
In the following program you can see that each value slightly less than .5 is rounded down, except for 0.5 .
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Format a date using the new date time API
I was playing with the new date time API but when running this:
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How to determine if binary tree is balanced?
It's been a while from those school years. Got a job as IT specialist at a hospital. Trying to move to do some actual programming now. I'm working on binary trees now, and I was wondering what would be the best way to determine if the tree is height-balanced.
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How do I automatically sort a has_many relationship in Rails?
This seems like a really simple question but I haven't seen it answered anywhere.
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Postgres: “ERROR: cached plan must not change result type”
This exception is being thrown by the PostgreSQL 8.3.7 server to my application.
Does anyone know what this error means and what I can do about it?
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What is the difference between #include and #include “filename”?
In the C and C++ programming languages, what is the difference between using angle brackets and using quotes in an include statement, as follows?
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What is the exact problem with multiple inheritance?
I can see people asking all the time whether multiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
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How to ignore user's time zone and force Date() use specific time zone
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Coloring white space in git-diff's output
...tting I'm kind of purist :). I very often remove unnecessary white spaces (lines with only ws, ws at the end of lines etc). I even have set vim to show that kind of lines colored to red.
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How to use QueryPerformanceCounter?
I recently decided that I needed to change from using milliseconds to microseconds for my Timer class, and after some research I've decided that QueryPerformanceCounter is probably my safest bet. (The warning on Boost::Posix that it may not works on Win32 API put me off a bit). However, I'm not re...